Pleurobranchidae
Every nudibranch on Fin, recorded across our dive sites.
Pleurobranchidae spp.
Phyllidia varicosa
Jorunna spp.
Aegires punctilucens
Chromodoris spp.
Cratena peregrina
Flabellina affinis
Nembrotha spp.
Peltodoris atromaculata
Roboastra spp.
Edmundsella pedata
Pteraeolidia semperi
Felimare picta
Felimare tricolor
Chromodoris annae
Luisella babai
Polycera quadrilineata
Phyllidia ocellata
Nembrotha kubaryana
Flabellina ischitana
Phyllidia coelestis
Diaphorodoris papillata
Doriprismatica atromarginata
Antiopella cristata
Jorunna funebris
Chromodoris willani
Phyllidiella pustulosa
Felimare fontandraui
Chromodoris lochi
Chromodoris magnifica
Rudmania krohni
Goniobranchus geometricus
Onchidoris bilamellata
Ceratosoma amoenum
Diaphorodoris alba
Hypselodoris tryoni
Jorunna tomentosa
Rudmania purpurea
Limacia clavigera
Coryphellina exoptata
Flabellina cavolini
Hermissenda crassicornis
Felimare cantabrica
Felimare orsinii
Felimare villafranca
Goniobranchus kuniei
Tambja morosa
Nembrotha cristata
Doris montereyensis
Phyllodesmium briareum
Chromodoris quadricolor
Facelina bostoniensis
Nemesignis banyulensis
Hypselodoris bullockii
Caloria indica
Doriopsilla areolata
Nembrotha lineolata
Caloria elegans
Nembrotha milleri
Archidoris pseudoargus
Halgerda batangas
Felimida binza
Nembrotha chamberlaini
Trinchesia morrowae
Facelina auriculata
Crimora papillata
Goniobranchus coi
Facelina rubrovittata
Felimare bilineata
Diaulula sandiegensis
Pelagella castanea
Felimida luteorosea
Doris verrucosa
Peltodoris nobilis
Flabellinopsis iodinea
Acanthodoris pilosa
Caloria quatrefagesi
Diaulula odonoghuei
Geitodoris planata
Thecacera picta
Hypselodoris pulchella
Chromodoris alcalai
Coryphella gracilis
Thecacera pennigera
Dendronotus frondosus
Polycera kernowensis
Phyllidia flava
Hypselodoris apolegma
Acanthodoris nanaimoensis
Pleurobranchus forskalii
Coryphella verrucosa
Goniodoridella picoensis
Candiella odhneri
Rostanga pulchra
Phestilla sibogae
Phidiana hiltoni
Dendrodoris krusensternii
Goniobranchus splendidus
Aeolidia filomenae
Dirona albolineata
Tergipes tergipes
Glossodoris rufomarginata
Aeolidia papillosa
Ardeadoris egretta
Goniobranchus fidelis
Spurilla neapolitana
Ceratosoma tenue
Felimare californiensis
Ceratosoma brevicaudatum
Hypselodoris bennetti
Orienthella trilineata
Triopha catalinae
Phyllidiopsis shireenae
Diaphorodoris luteocincta
Notodoris minor
Trapania tartanella
Amphorina linensis
Catriona aurantia
Goniobranchus leopardus
Okenia nodosa
Doris berghi
Samla bicolor
Trapania lineata
Phyllidia alyta
Felimare ruthae
Fiocuthona concinna
Doto coronata
Berthella plumula
Melibe viridis
Reticulidia fungia
Neptunazurea kempfi
Trinchesia caerulea
Chromodoris strigata
Onchidoris muricata
Glaucus atlanticus
Halgerda wasinensis
Polycera atra
Chromodoris colemani
Coryphella lineata
Favorinus branchialis
Janolus hyalinus
Hypselodoris imperialis
Berthellina edwardsii
Dendronotus venustus
Phyllidiella zeylanica
Favorinus tsuruganus
Jorunna rubescens
Antiopella fusca
Aphelodoris varia
Aegires albopunctatus
Goniobranchus hintuanensis
Thorunna furtiva
Ceratosoma gracillimum
Polycera capensis
Limenandra nodosa
Phyllidia marindica
Hypselodoris roo
Melibe leonina
Berghia coerulescens
Hypselodoris zephyra
Platydoris argo
Cadlina laevis
Doriopsilla fulva
Aeolidiella glauca
Reticulidia halgerda
Learchis poica
Candiella manicata
Pleurobranchus areolatus
Mexichromis trilineata
Goniobranchus annulatus
Limacia cockerelli
Hypselodoris nigrostriata
Felimida macfarlandi
Hypselodoris decorata
Ceratodoris rosacea
Triopha modesta
Doto fragilis
Chromodoris westraliensis
Tomoberthella martensi
Tenellia ocellata
Phyllidiopsis xishaensis
Dendrodoris krebsii
Bornella anguilla
Cadlina pellucida
Doris chrysoderma
Roboastra gracilis
Hypselodoris obscura
Goniobranchus verrieri
Doriopsilla albopunctata
Taringa telopia
Dendronotus iris
Tritonia hombergii
Halgerda indotessellata
Notodoris serenae
Goniobranchus collingwoodi
Spurilla braziliana
Hypselodoris krakatoa
Glossodoris acosti
Felimare agassizii
Ceratosoma trilobatum
Austraeolis ornata
Chromolaichma sedna
Tritonicula hamnerorum
Coryphellina flamma
Facelinopsis marioni
Longibranchus putnami
Cadlinella ornatissima
Eubranchulus rupium
Phyllidiella nigra
Phyllidia exquisita
Phyllidiella rosans
Pleurobranchus peronii
Bulbaeolidia alba
Halgerda willeyi
Chromodoris elisabethina
Asteronotus cespitosus
Phyllidiopsis annae
Aegires villosus
Dondice occidentalis
Babakina anadoni
Miamira sinuata
Facelina annulicornis
Bonisa nakaza
Mexichromis multituberculata
Candiella lineata
Tambja verconis
Plocamopherus imperialis
Ancula gibbosa
Hypselodoris maculosa
Hypselodoris variobranchia
Acanthodoris hudsoni
Gargamella rosi
Flabellina gabinierei
Dendrodoris nigra
Hypselodoris whitei
Goniobranchus setoensis
Limacia mcdonaldi
Chromolaichma hemera
Tayuva lilacina
Hypselodoris emma
Doriopsilla pelseneeri
Trinchesia cuanensis
Rostanga rubra
Phyllodesmium poindimiei
Chromodoris kuiteri
Felimida clenchi
Amphorina farrani
Cratena capensis
Phyllidia undula
Nembrotha purpureolineata
Phyllidiopsis krempfi
Edmundsella dushia
Phyllodesmium horridum
Doto pinnatifida
Pleurobranchus grandis
Candiella striata
Hypselodoris infucata
Hypselodoris capensis
Phestilla melanobrachia
Discodoris boholiensis
Chromodoris joshi
Halgerda terramtuentis
Goniobranchus vibratus
Cratena lineata
Goniobranchus albonares
Boreoberthella chacei
Goniobranchus daphne
Aegires leuckartii
Gymnodoris ceylonica
Thecacera pikachu
Hypselodoris jacksoni
Verconia haliclona
Spurilla sargassicola
Halgerda tessellata
Geitodoris heathi
Okenia amoenula
Aphelodoris luctuosa
Lecithophorus capensis
Berthella ocellata
Glossodoris angasi
Dendrodoris arborescens
Hypselodoris peasei
Cadlina luteomarginata
Chromodoris hamiltoni
Thorunna daniellae
Nudibranchus exiguus
Antiopella capensis
Aeolidiella alderi
Carminodoris nodulosa
Doto ussi
Melibe colemani
Phyllidia polkadotsa
Gymnodoris inornata
Goniobranchus heatherae
Tambja capensis
Doriprismatica balut
Antiopella longidentata
Amphorina viriola
Polycera hedgpethi
Dendrodoris limbata
Coryphella piunca
Gymnodoris impudica
Phyllodesmium jakobsenae
Tyrannodoris luteolineata
Hypselodoris paradisa
Caloria militaris
Glossodoris pallida
Palio dubia
Coryphella capensis
Ceratophyllidia papilligera
Tritonia festiva
Thecacera pacifica
Tenellia miniostriata
Miamira moloch
Verconia simplex
Phyllodesmium koehleri
Coryphellina marcusorum
Dermatobranchus ornatus
Doris fontainii
Doto cervicenigra
Thorunna kahuna
Ardeadoris angustolutea
Polycera faeroensis
Coryphella chriskaugei
Nanuca sebastiani
Doriopsilla carneola
Bermudella brunneomaculata
Hypselodoris festiva
Tritoniopsis frydis
Favorinus mirabilis
Unidentia sandramillenae
Marionia blainvillea
Coryphellina poenicia
Phyllidia rueppelii
Tularia bractea
Diaulula punctuolata
Nembrotha lorosae
Okenia elegans
Phyllodesmium serratum
Goniobranchus tasmaniensis
Limacia jellyi
Aeolidia loui
Chromodoris kalawakan
Jason mirabilis
Glossodoris bonwanga
Mexichromis mariei
Doto floridicola
Flabellina funeka
Diversidoris crocea
Austraeolis catina
Baeolidia moebii
Doto pita
Chromodoris africana
Coryphella longicaudata
Doris cameroni
Rostanga arbutus
Nanuca leali
Aphelodoris antillensis
Mexichromis macropus
Learchis evelinae
Phyllodesmium opalescens
Miamira miamirana
Ardeadoris tomsmithi
Phyllodesmium rudmani
Polycera norvegica
Limacia lucida
Doriopsilla gemela
Antiopella barbarensis
Verconia verconis
Gymnodoris crocea
Ardeadoris rubroannulata
Goniobranchus epicurius
Phyllodesmium longicirrum
Goniobranchus thompsoni
Goniobranchus geminus
Chromodoris orientalis
Platydoris angustipes
Goniobranchus sinensis
Cadlina sylviaearleae
Halgerda carlsoni
Goniobranchus albopustulosus
Chromodoris dianae
Samla bilas
Tambja mullineri
Hypselodoris katherinae
Cadlina flavomaculata
Luisella engeli
Doto greenamyeri
Hypselodoris violacea
Dirona picta
Goniobranchus preciosus
Bornella calcarata
Goniobranchus woodwardae
Dondice freddiemercuryi
Eubranchus rustyus
Hypselodoris saintvincentius
Pleurobranchus hilli
Phyllodesmium macphersonae
Aldisa sanguinea
Tenellia puti
Phyllodesmium crypticum
Doto amyra
Tritonicula wellsi
Kaloplocamus ramosus
Doris wellingtonensis
Dendronotus albus
Hypselodoris regina
Carminodoris estrelyado
Tambja olivaria
Ceratosoma ingozi
Berthellina delicata
Tambja tenuilineata
Dendrodoris caesia
Godiva quadricolor
Dirona pellucida
Dicata odhneri
Hiatodoris fellowsi
Trapania brunnea
Pleurobranchus weberi
Doriprismatica stellata
Pruvotfolia rhodopos
Polycera tricolor
Cuthona tina
Limacia inesae
Hypselodoris purpureomaculosa
Doris odhneri
Dendrodoris grandiflora
Miamira flavicostata
Cuthona divae
Coryphella trophina
Rostanga crawfordi
Adalaria proxima
Glossodoris hikuerensis
Anteaeolidiella oliviae
Bulbaeolidia oasis
Phyllodesmium magnum
Pleurobranchus albiguttatus
Phyllodesmium colemani
Baenopsis baetica
Ceratodoris mellita
Phyllidiella rudmani
Tambja gabrielae
Armina scotti
Doto furva
Diaphorodoris lirulatocauda
Notobryon wardi
Doto urak
Armina californica
Goniobranchus conchyliatus
Favorinus vitreus
Dendrodoris citrina
Goniobranchus aureomarginatus
Leminda millecra
Dendrodoris elongata
Goniobranchus fabulus
Cerberilla potiguara
Glossodoris buko
Dermatobranchus caeruleomaculatus
Anteaeolidiella chromosoma
Austraeolis stearnsi
Palisa papillata
Gymnodoris striata
Produnga rubropunctata
Idaliadoris depressa
Taringa halgerda
Plocamopherus maderae
Acanthodoris rhodoceras
Babakina festiva
Marioniopsis viridescens
Hypselodoris maritima
Apata pricei
Thorunna florens
Atagema intecta
Armina occulta
Tenellia thelmae
Noumeaella rehderi
Kaloplocamus acutus
Dendronotus subramosus
Sclerodoris tuberculata
Chromodoris celinae
Martadoris limaciformis
Marioniopsis arborescens
Cadlina limbaughorum
Idaliadoris neapolitana
Goniobranchus hunterae
Pleurolidia juliae
Janolus mokohinau
Hypselodoris skyleri
Trapania benni
Cabangus regius
Nembrotha aurea
Thordisa bimaculata
Phyllidia willani
Phyllodesmium hyalinum
Tenellia albocrusta
Alloiodoris lanuginata
Murphydoris adusta
Eubranchus ocellatus
Goniobranchus loringi
Trapania euryeia
Janolus eximius
Tenellia nakapila
Hypselodoris iba
Jorunna pantherina
Corambe steinbergae
Doto kya
Ardeadoris averni
Goniobranchus decorus
Nembrotha livingstonei
Corambe pacifica
Trapania palmula
Thecacera melkyi
Atagema spongiosa
Platydoris sanguinea
Coryphella cooperi
Bermudella angelensis
Ceratodoris atkinsonorum
Tenellia bughaw
Acanthodoris lutea
Verconia romeri
Nembrotha mullineri
Miamira alleni
Sakuraeolis nungunoides
Pauleo jubatus
Hypselodoris confetti
Baptodoris mimetica
Janolus savinkini
Thorunna halourga
Hallaxa chani
Sebadoris fragilis
Cratena simba
Trapania vitta
Baeolidia australis
Hypselodoris bertschi
Tenellia speciosa
Asteronotus mimeticus
Phyllidiopsis sinaiensis
Plocamopherus ceylonicus
Cadlina modesta
Eubranchopsis virginalis
Samla riwo
Diversidoris sulphurea
Noumeaella rubrofasciata
Chromodoris aspersa
Amanda armata
Mexichromis pusilla
Dendrodoris fumata
Berthellina citrina
Favorinus japonicus
Tritoniopsis elegans
Cadlina sparsa
Ardeadoris scottjohnsoni
Melibe coralophilia
Tenellia kuiterorum
Anteaeolidiella cacaotica
Phyllodesmium iriomotense
Limenandra confusa
Phyllodesmium tuberculatum
Doto columbiana
Doriopsis pecten
Jorunna parva
Diversidoris flava
Dermatobranchus funiculus
Pelagella longicornis
Coryphellina lotos
Hypselodoris bollandi
Trapania toddi
Phyllidiopsis cardinalis
Lomanotus vermiformis
Trapania miltabrancha
Janolus incrustans
Hypselodoris violabranchia
Dendrodoris guttata
Goniodoridella savignyi
Ancula pacifica
Trapania tora
Phestilla lugubris
Doriopsilla rowena
Rostanga lutescens
Hypselodoris lacuna
Tritonia exsulans
Trapania scurra
Bermudella mija
Trapania kamagong
Janolus flavoanulatus
Fiona pinnata
Coryphellina delicata
Trapania tamaraw
Thorunna australis
Phyllodesmium parangatum
Facelina bourailli
Verconia norba
Every member ranked by how many dive sites hold them, with the traits a diver cares about.
| Species | Diver appeal | Findability | Size | Depth | Sites | Status |
|---|---|---|---|---|---|---|
| Sea SlugPleurobranchidae spp. |
| Easy to miss |
| – |
| – |
| 5,737 |
| Least concern |
| Varicose Wart SlugPhyllidia varicosa | Easy to miss | 4cm | 10-20m | 3,704 | Least concern |
 Jorunna NudibranchJorunna spp. | Easy to miss | – | – | 3,387 | Least concern |
 NudibranchAegires punctilucens | – | – | – | 3,168 | Least concern |
 Chromodoris NudibranchChromodoris spp. | Easy to miss | – | – | 2,207 | Least concern |
| Cratena SlugCratena peregrina | Easy to miss | – | – | 1,763 | Least concern |
| Mediterranean Violet AeolidFlabellina affinis | Easy to miss | – | – | 1,668 | Least concern |
 Nembrotha NudibranchNembrotha spp. | Easy to miss | – | – | 1,600 | Least concern |
| Cow SnailPeltodoris atromaculata | Easy to miss | – | – | 1,382 | Least concern |
| Roboastra NudibranchRoboastra spp. | Easy to miss | – | – | 1,270 | Least concern |
 Violet Sea SlugEdmundsella pedata | – | – | – | 1,268 | Least concern |
| Blue DragonPteraeolidia semperi | Easy to miss | – | – | 1,175 | Least concern |
| Giant DorisFelimare picta | Easy to miss | – | – | 1,122 | Least concern |
| Tricolor DorisFelimare tricolor | Easy to miss | – | – | 1,113 | Least concern |
 Anna's ChromodorisChromodoris annae | – | 1cm | 15-30m | 854 | Least concern |
 Luisella BabaiLuisella babai | – | – | – | 748 | Least concern |
 Fourline NudibranchPolycera quadrilineata | – | – | – | 675 | Least concern |
| Ocellated Wart SlugPhyllidia ocellata | Usually seen | – | – | 629 | Least concern |
| Trance Wrinkle DoridNembrotha kubaryana | Easy to miss | – | – | 625 | Least concern |
 Flabellina IschitanaFlabellina ischitana | – | – | – | 603 | Least concern |
| Heavenly Wart SlugPhyllidia coelestis | Easy to miss | – | – | 579 | Least concern |
 Diaphorodoris papillataDiaphorodoris papillata | – | – | – | 573 | Least concern |
| Black-margined NudibranchDoriprismatica atromarginata | Easy to miss | – | – | 569 | Least concern |
 Antiopella CristataAntiopella cristata | – | – | – | 547 | Least concern |
 Ringed Velvet DoridJorunna funebris | – | 3cm | – | 499 | Least concern |
 Willan's ChromodorisChromodoris willani | – | 1cm | – | 496 | Least concern |
| Pustular PhyllidiaPhyllidiella pustulosa | Usually seen | – | – | 493 | Least concern |
| Felimare fontandrauiFelimare fontandraui | Easy to miss | – | – | 491 | Least concern |
 Loch's ChromodorisChromodoris lochi | – | 2cm | – | 480 | Least concern |
 Magnificent ChromodorisChromodoris magnifica | – | – | – | 453 | Least concern |
 Rudmania KrohniRudmania krohni | – | – | – | 452 | Least concern |
| Geometric Rainbow DoridGoniobranchus geometricus | Easy to miss | – | – | 438 | Least concern |
| Barnacle-eating DoridOnchidoris bilamellata | Hard to spot | 2cm | 0-55m | 430 | Least concern |
| Clown DorisCeratosoma amoenum | Easy to miss | – | – | 428 | Least concern |
 Diaphorodoris AlbaDiaphorodoris alba | – | – | – | 426 | Least concern |
| Tryon's HypselodorisHypselodoris tryoni | Easy to miss | – | – | 418 | Least concern |
| Grey Sea SlugJorunna tomentosa | Easy to miss | – | – | 368 | Least concern |
 Rudmania PurpureaRudmania purpurea | – | – | – | 367 | Least concern |
| Orange-clubbed NudibranchLimacia clavigera | Easy to miss | – | – | 366 | Least concern |
| Desirable FlabellinaCoryphellina exoptata | Easy to miss | – | – | 356 | Least concern |
 Flabellina CavoliniFlabellina cavolini | – | – | – | 353 | Least concern |
| HermissendaHermissenda crassicornis | Easy to miss | – | – | 348 | Least concern |
 Felimare CantabricaFelimare cantabrica | – | – | – | 341 | Least concern |
| Felimare orsiniiFelimare orsinii | Easy to miss | – | – | 337 | Least concern |
| Felimare villafrancaFelimare villafranca | Easy to miss | – | – | 332 | Least concern |
| Goniobranchus kunieiGoniobranchus kuniei | Easy to miss | – | – | 322 | Least concern |
| Blue-spotted Wrinkle DoridTambja morosa | Easy to miss | – | – | 317 | Least concern |
 Crested NembrothaNembrotha cristata | – | 8cm | – | 314 | Least concern |
| Monterey DoridDoris montereyensis | Easy to miss | 10cm | 0-28m | 310 | Least concern |
 Bushy PhyllodesmiumPhyllodesmium briareum | – | 1cm | 8-20m | 307 | Least concern |
 Striped Pyjama NudibranchChromodoris quadricolor | – | 2cm | – | 304 | Least concern |
 Boston FacelinaFacelina bostoniensis | – | 2cm | 2-37m | 304 | Least concern |
 Nemesignis banyulensisNemesignis banyulensis | – | – | – | 303 | Least concern |
| Lavender Split-tooth DoridHypselodoris bullockii | Easy to miss | – | – | 296 | Least concern |
| Sunrise Tentacle AeolidCaloria indica | Easy to miss | – | – | 292 | Least concern |
 Doriopsilla AreolataDoriopsilla areolata | – | – | – | 286 | Least concern |
 Lined NembrothaNembrotha lineolata | – | 2cm | – | 280 | Least concern |
 Pepper-and-salt SlugCaloria elegans | – | – | – | 270 | Least concern |
 Miller's NembrothaNembrotha milleri | – | – | – | 262 | Least concern |
 Sea LemonArchidoris pseudoargus | – | – | – | 261 | Least concern |
| Batangas HalgerdaHalgerda batangas | Easy to miss | – | – | 259 | Least concern |
| Harlequin Sea GoddessFelimida binza | Easy to miss | – | – | 250 | Least concern |
 Chamberlain's NembrothaNembrotha chamberlaini | – | 4cm | – | 250 | Least concern |
 Trinchesia morrowaeTrinchesia morrowae | – | – | – | 248 | Least concern |
 Slender FacelinaFacelina auriculata | – | – | – | 248 | Least concern |
 Crimora papillataCrimora papillata | – | – | – | 245 | Least concern |
| Coi's GoniobranchusGoniobranchus coi | Easy to miss | – | – | 241 | Least concern |
 Facelina RubrovittataFacelina rubrovittata | – | – | – | 233 | Least concern |
| Double-lined Sea SlugFelimare bilineata | Easy to miss | – | – | 230 | Least concern |
| San Diego DoridDiaulula sandiegensis | Easy to miss | 5cm | 0-28m | 230 | Least concern |
 Chestnut Pump DoridPelagella castanea | – | – | – | 229 | Least concern |
 Yellow-dotted DorisFelimida luteorosea | – | – | – | 227 | Least concern |
 Warty DoridDoris verrucosa | – | 4cm | 0-12m | 223 | Least concern |
 Noble DoridPeltodoris nobilis | Easy to miss | – | – | 221 | Least concern |
 Spanish ShawlFlabellinopsis iodinea | Easy to miss | – | – | 221 | Least concern |
 Hairy Spiny DorisAcanthodoris pilosa | – | 1cm | 0-55m | 220 | Least concern |
 Caloria QuatrefagesiCaloria quatrefagesi | – | – | – | 218 | Least concern |
| Northern Leopard DoridDiaulula odonoghuei | Easy to miss | – | – | 212 | Least concern |
 Geitodoris PlanataGeitodoris planata | – | 2cm | 91-267m | 211 | Least concern |
| Thecacera pictaThecacera picta | Easy to miss | – | – | 208 | Least concern |
| Dottyback Split-tooth DoridHypselodoris pulchella | Easy to miss | – | – | 205 | Least concern |
 Chromodoris AlcalaiChromodoris alcalai | – | – | 2-77m | 204 | Least concern |
 Coryphella GracilisCoryphella gracilis | – | – | – | 198 | Least concern |
| ThecaceraThecacera pennigera | Easy to miss | – | – | 198 | Least concern |
 Bushy-backed NudibranchDendronotus frondosus | – | 2cm | – | 197 | Least concern |
 Polycera kernowensisPolycera kernowensis | – | – | – | 192 | Least concern |
| White-spotted Yellow NudibranchPhyllidia flava | Easy to miss | – | – | 191 | Least concern |
| Cinderella Sea SlugHypselodoris apolegma | Easy to miss | – | – | 190 | Least concern |
| Nanaimo DoridAcanthodoris nanaimoensis | Hard to spot | 1cm | – | 189 | Least concern |
 Forskal's Sidegilled SlugPleurobranchus forskalii | – | – | – | 188 | Least concern |
 Coryphella VerrucosaCoryphella verrucosa | – | – | – | 182 | Least concern |
 Goniodoridella picoensisGoniodoridella picoensis | – | – | – | 179 | Least concern |
 Candiella OdhneriCandiella odhneri | – | – | – | 179 | Least concern |
| Red Sponge DoridRostanga pulchra | Hard to spot | 0cm | 102m | 179 | Least concern |
 Phestilla SibogaePhestilla sibogae | – | – | – | 179 | Least concern |
| Hilton's AeolidPhidiana hiltoni | Hard to spot | 3cm | 0-28m | 170 | Least concern |
 Dendrodoris GunnamattaDendrodoris krusensternii | – | – | – | 170 | Least concern |
| Splendid GoniobranchGoniobranchus splendidus | Easy to miss | – | – | 170 | Least concern |
 Aeolidia FilomenaeAeolidia filomenae | – | – | – | 168 | Least concern |
| White-lined DironaDirona albolineata | Easy to miss | 12cm | 0-28m | 168 | Least concern |
 Johnston's Balloon EolisTergipes tergipes | – | – | – | 167 | Least concern |
| Caramel NudibranchGlossodoris rufomarginata | Easy to miss | – | – | 166 | Least concern |
 Shag-rug AeolisAeolidia papillosa | – | 7cm | 0-380m | 166 | Least concern |
 Heron ArdeadorisArdeadoris egretta | – | 7cm | 1-1014m | 165 | Least concern |
| Fiesta Rainbow DoridGoniobranchus fidelis | Easy to miss | – | – | 163 | Least concern |
 Naples SpurillaSpurilla neapolitana | – | 4cm | 0-3m | 163 | Least concern |
| Elongate Pantechnicon DoridCeratosoma tenue | Easy to miss | – | – | 162 | Least concern |
 Felimare californiensisFelimare californiensis | – | – | – | 160 | Least concern |
| Short-tailed CeratosomaCeratosoma brevicaudatum | Easy to miss | – | – | 160 | Least concern |
| Bennett's HypselodorisHypselodoris bennetti | Easy to miss | – | – | 160 | Least concern |
 Three-lined AeolidOrienthella trilineata | Hard to spot | – | – | 159 | Least concern |
| Clown DoridTriopha catalinae | Easy to miss | 4cm | 0-17m | 157 | Least concern |
 Shireen's PhyllidiopsisPhyllidiopsis shireenae | – | 7cm | – | 153 | Least concern |
 Fried Egg NudibranchDiaphorodoris luteocincta | – | – | – | 150 | Least concern |
| Banana NudibranchNotodoris minor | Easy to miss | – | – | 150 | Least concern |
 Trapania tartanellaTrapania tartanella | – | – | – | 149 | Least concern |
 Amphorina LinensisAmphorina linensis | – | – | – | 148 | Least concern |
 Corange-tip CuthonaCatriona aurantia | – | – | – | 148 | Least concern |
| Leopard ChromodorisGoniobranchus leopardus | Easy to miss | – | – | 145 | Least concern |
 Okenia nodosaOkenia nodosa | – | – | – | 144 | Least concern |
 Doris BerghiDoris berghi | – | – | – | 143 | Least concern |
 Two-tone BluntnoseSamla bicolor | – | – | – | 140 | Least concern |
 Stripete TritoniaTrapania lineata | – | – | – | 136 | Least concern |
 Four-lined Wart SlugPhyllidia alyta | – | – | – | 134 | Least concern |
| Gold Line Sea GoddessFelimare ruthae | Easy to miss | – | – | 134 | Least concern |
 Fiocuthona ConcinnaFiocuthona concinna | – | – | – | 134 | Least concern |
 Coronate DotoDoto coronata | – | 1cm | – | 133 | Least concern |
 Yellow-plumed Sea SlugBerthella plumula | – | – | – | 128 | Least concern |
| Giant MonkdragonMelibe viridis | Easy to miss | – | – | 124 | Least concern |
| Mushroom Coral ReticulidaReticulidia fungia | Easy to miss | – | – | 123 | Least concern |
| Neptunazurea kempfiNeptunazurea kempfi | Easy to miss | – | – | 123 | Least concern |
 Trinchesia CaeruleaTrinchesia caerulea | – | – | – | 122 | Least concern |
 Streaked ChromodorisChromodoris strigata | – | – | – | 122 | Least concern |
 Rough DorisOnchidoris muricata | – | 0cm | 0-64m | 120 | Least concern |
| Atlantic Sea SwallowGlaucus atlanticus | Easy to miss | – | – | 117 | Least concern |
 Chocolate Waffle DoridHalgerda wasinensis | – | – | – | 116 | Least concern |
| Sorcerer's DoridPolycera atra | Hard to spot | 1cm | – | 116 | Least concern |
 Coleman's ChromodorisChromodoris colemani | – | 1cm | 3-11m | 116 | Least concern |
 Coryphella LineataCoryphella lineata | – | – | – | 115 | Least concern |
 Favorinus branchialisFavorinus branchialis | – | – | 5-20m | 115 | Least concern |
 Janolus HyalinusJanolus hyalinus | – | – | – | 114 | Least concern |
| Imperial NudibranchHypselodoris imperialis | Easy to miss | – | – | 114 | Least concern |
 Peach SeaslugBerthellina edwardsii | – | – | – | 110 | Least concern |
 Branched DendronotidDendronotus venustus | Hard to spot | – | – | 105 | Least concern |
 Angular Wart SlugPhyllidiella zeylanica | – | 4cm | – | 104 | Least concern |
 Black-horned Egg-eaterFavorinus tsuruganus | – | – | – | 103 | Least concern |
 Turret Velvet DoridJorunna rubescens | – | 11cm | 0-18m | 102 | Least concern |
 Antiopella FuscaAntiopella fusca | – | – | – | 102 | Least concern |
 Variable AphelodorisAphelodoris varia | – | 3cm | 0-20m | 102 | Least concern |
| Salt-and-pepper DoridAegires albopunctatus | Hard to spot | 1cm | – | 102 | Least concern |
 Bus Stop NudibranchGoniobranchus hintuanensis | – | 0cm | – | 101 | Least concern |
 NudibranchThorunna furtiva | – | – | – | 98 | Least concern |
| Slender Ceratosoma NudibranchCeratosoma gracillimum | Easy to miss | – | – | 98 | Least concern |
 Crowned NudibranchPolycera capensis | – | 4cm | 0-30m | 97 | Least concern |
 Nodulous AeolidLimenandra nodosa | – | 3cm | – | 97 | Least concern |
 Yellow-spined Wart SlugPhyllidia marindica | – | – | – | 97 | Least concern |
| Hypselodoris rooHypselodoris roo | Easy to miss | – | – | 96 | Least concern |
| Lion NudibranchMelibe leonina | Easy to miss | – | – | 95 | Least concern |
 NudibranchBerghia coerulescens | – | 2cm | 1m | 95 | Least concern |
| Zephyr HypselodorisHypselodoris zephyra | Easy to miss | – | – | 95 | Least concern |
 Redbrown Leathery DorisPlatydoris argo | – | – | – | 94 | Least concern |
 White Atlantic CadlinaCadlina laevis | – | 2cm | 0-800m | 94 | Least concern |
 White-speckled DoridDoriopsilla fulva | Easy to miss | – | – | 94 | Least concern |
 Orange-brown AeolidAeolidiella glauca | – | – | – | 94 | Least concern |
| Chocolate Mango NudibranchReticulidia halgerda | Easy to miss | – | – | 93 | Least concern |
 Learchis PoicaLearchis poica | – | 1cm | – | 91 | Least concern |
 Candiella ManicataCandiella manicata | – | – | – | 91 | Least concern |
 Warty Sea SlugPleurobranchus areolatus | – | 10cm | – | 91 | Least concern |
 Three-lines Purple DorisMexichromis trilineata | – | – | – | 91 | Least concern |
 Spectacled Rainbow DoridGoniobranchus annulatus | – | – | – | 90 | Least concern |
 Cockerell's NudibranchLimacia cockerelli | – | 1cm | – | 90 | Least concern |
| Black-striped Split-tooth DoridHypselodoris nigrostriata | Easy to miss | – | – | 90 | Least concern |
| Macfarland's ChromodoridFelimida macfarlandi | Easy to miss | – | – | 89 | Least concern |
| Triple-banded Split-tooth DoridHypselodoris decorata | Easy to miss | – | – | 89 | Least concern |
 Ceratodoris rosaceaCeratodoris rosacea | – | – | – | 89 | Least concern |
 Triopha modestaTriopha modesta | – | – | – | 87 | Least concern |
 Doto fragilisDoto fragilis | – | – | – | 87 | Least concern |
 Chromodoris westraliensisChromodoris westraliensis | – | – | – | 86 | Least concern |
 Tomoberthella MartensiTomoberthella martensi | – | – | – | 86 | Least concern |
 Tenellia ocellataTenellia ocellata | – | – | – | 84 | Least concern |
 Phyllidiopsis xishaensisPhyllidiopsis xishaensis | – | – | – | 84 | Least concern |
 Nero PorostomeDendrodoris krebsii | – | 2cm | 0-25m | 83 | Least concern |
 Paisley EeldragonBornella anguilla | – | 5cm | – | 80 | Least concern |
 Cadlina PellucidaCadlina pellucida | – | – | – | 80 | Least concern |
 Lemon Lolly DorisDoris chrysoderma | – | – | – | 79 | Least concern |
 Graceful Wrinkle DoridRoboastra gracilis | – | 2cm | 1-5m | 79 | Least concern |
 Obscure HypselodorisHypselodoris obscura | – | 2cm | – | 79 | Least concern |
| Pink-eared Rainbow DoridGoniobranchus verrieri | Easy to miss | – | – | 78 | Least concern |
 White-spotted Sea GoddessDoriopsilla albopunctata | Hard to spot | 2cm | – | 78 | Least concern |
 Taringa TelopiaTaringa telopia | – | 3cm | – | 78 | Least concern |
| Giant Frond-aeolisDendronotus iris | Easy to miss | – | – | 77 | Least concern |
 Tritonia HombergiiTritonia hombergii | – | – | – | 77 | Least concern |
 Starry Waffle DoridHalgerda indotessellata | – | – | – | 76 | Least concern |
| Notodoris serenaeNotodoris serenae | Easy to miss | – | – | 76 | Least concern |
| Collingwood's GoniobranchusGoniobranchus collingwoodi | Easy to miss | – | – | 75 | Least concern |
 Spurilla brazilianaSpurilla braziliana | – | – | – | 75 | Least concern |
| Hypselodoris krakatoaHypselodoris krakatoa | Easy to miss | – | – | 74 | Least concern |
 Glossodoris AcostiGlossodoris acosti | – | – | – | 73 | Least concern |
 Felimare AgassiziiFelimare agassizii | – | – | – | 73 | Least concern |
| T-bar Pantechnicon DoridCeratosoma trilobatum | Easy to miss | – | – | 72 | Least concern |
 Ornate FacelinidAustraeolis ornata | – | 2cm | 0-100m | 72 | Least concern |
 Red-tipped Sea GoddessChromolaichma sedna | – | – | – | 72 | Least concern |
 GastropodTritonicula hamnerorum | – | – | – | 71 | Least concern |
| Coryphellina flammaCoryphellina flamma | Easy to miss | – | – | 71 | Least concern |
 Facelinopsis MarioniFacelinopsis marioni | – | – | – | 70 | Least concern |
 Longibranchus PutnamiLongibranchus putnami | – | – | – | 70 | Least concern |
 Ornate CadlinellaCadlinella ornatissima | – | 1cm | 5-12m | 70 | Least concern |
 Eubranchulus RupiumEubranchulus rupium | – | – | – | 70 | Least concern |
 Black PhyllidiellaPhyllidiella nigra | – | – | – | 69 | Least concern |
| Yellow-edged Wart SlugPhyllidia exquisita | Easy to miss | – | – | 69 | Least concern |
 Rose PhyllidiellaPhyllidiella rosans | – | 3cm | – | 68 | Least concern |
 Peron's Sidegill SlugPleurobranchus peronii | – | – | – | 68 | Least concern |
 White AeolidBulbaeolidia alba | – | 0cm | 1m | 68 | Least concern |
| Halgerda willeyiHalgerda willeyi | Easy to miss | – | – | 67 | Least concern |
 Chromodoris ElisabethinaChromodoris elisabethina | – | – | – | 67 | Least concern |
| Starback Tentacled DoridAsteronotus cespitosus | Easy to miss | – | – | 67 | Least concern |
 Anne's PhyllidiopsisPhyllidiopsis annae | – | 0cm | – | 67 | Least concern |
 Sunset Knobbed DoridAegires villosus | – | 0cm | – | 66 | Least concern |
 Fringe-back NudibranchDondice occidentalis | – | 4cm | – | 65 | Least concern |
 Gaudy BabakinaBabakina anadoni | – | 1cm | – | 65 | Least concern |
| Jolly Green GiantMiamira sinuata | Easy to miss | – | – | 65 | Least concern |
 Facelina annulicornisFacelina annulicornis | – | – | – | 65 | Least concern |
 Gasflame NudibranchBonisa nakaza | – | – | – | 64 | Least concern |
 Beau Vallon Magnificent SlugMexichromis multituberculata | – | 2cm | Up to 12m | 63 | Least concern |
 Candiella LineataCandiella lineata | – | – | – | 63 | Least concern |
 Verco's NudibranchTambja verconis | – | 9cm | 0-50m | 63 | Least concern |
| Plocamopherus imperialisPlocamopherus imperialis | Easy to miss | – | – | 62 | Least concern |
 Atlantic AnculaAncula gibbosa | – | 1cm | – | 61 | Least concern |
| Double-banded Split-tooth DoridHypselodoris maculosa | Easy to miss | – | – | 61 | Least concern |
 Hypselodoris VariobranchiaHypselodoris variobranchia | – | – | – | 61 | Least concern |
 Hudson Spiny DorisAcanthodoris hudsoni | – | 1cm | – | 60 | Least concern |
 Gargamella RosiGargamella rosi | – | – | – | 60 | Least concern |
 Flabellina GabiniereiFlabellina gabinierei | – | – | – | 60 | Least concern |
 Black DendrodorisDendrodoris nigra | – | 5cm | 0-26m | 59 | Least concern |
 White's HypselodorisHypselodoris whitei | – | – | 3m | 59 | Least concern |
 Goniobranchus SetoensisGoniobranchus setoensis | – | – | – | 59 | Least concern |
 Limacia McdonaldiLimacia mcdonaldi | – | – | – | 59 | Least concern |
 Chromolaichma HemeraChromolaichma hemera | – | – | – | 58 | Least concern |
 Tayuva LilacinaTayuva lilacina | – | – | – | 58 | Least concern |
| Triple-striped Split-tooth DoridHypselodoris emma | Easy to miss | – | – | 57 | Least concern |
 Doriopsilla PelseneeriDoriopsilla pelseneeri | – | – | – | 56 | Least concern |
 Trinchesia CuanensisTrinchesia cuanensis | – | – | – | 56 | Least concern |
 Rostanga rubraRostanga rubra | – | – | – | 56 | Least concern |
| Branched Soft Coral EaterPhyllodesmium poindimiei | Hard to spot | – | – | 56 | Least concern |
 Kuiter's ChromodorisChromodoris kuiteri | – | 5cm | – | 56 | Least concern |
 Bill Clench's DorisFelimida clenchi | – | – | – | 56 | Least concern |
 Amphorina FarraniAmphorina farrani | – | – | – | 56 | Least concern |
 White-tipped NudibranchCratena capensis | – | – | – | 55 | Least concern |
 Phyllidia UndulaPhyllidia undula | – | – | – | 53 | Least concern |
 Fire-gilled Wrinkle DoridNembrotha purpureolineata | – | – | – | 53 | Least concern |
 Krempf's PhyllidiopsisPhyllidiopsis krempfi | – | 4cm | – | 53 | Least concern |
 Edmundsella DushiaEdmundsella dushia | – | – | – | 52 | Least concern |
 Temperate Soft Coral EaterPhyllodesmium horridum | – | – | – | 52 | Least concern |
 Feathered DotoDoto pinnatifida | – | – | – | 51 | Least concern |
 Grand PleurobranchPleurobranchus grandis | – | 15cm | – | 51 | Least concern |
 Candiella StriataCandiella striata | – | – | – | 51 | Least concern |
 Painted NudibranchHypselodoris infucata | – | 2cm | – | 50 | Least concern |
 Cape DoridHypselodoris capensis | – | 3cm | – | 50 | Least concern |
 Black Gilled PhestillaPhestilla melanobrachia | – | 3cm | – | 50 | Least concern |
 Bohol NudibranchDiscodoris boholiensis | – | 4cm | – | 49 | Least concern |
 NudibranchChromodoris joshi | – | 4cm | – | 49 | Least concern |
 Gold Lace NudibranchHalgerda terramtuentis | – | 3cm | 0-30m | 49 | Least concern |
 Trembling NudibranchGoniobranchus vibratus | – | – | 0-24m | 48 | Least concern |
 White-lined CratenaCratena lineata | – | 0cm | 0-18m | 48 | Least concern |
| Alabaster Rainbow DoridGoniobranchus albonares | Easy to miss | – | – | 48 | Least concern |
 Boreoberthella ChaceiBoreoberthella chacei | – | – | – | 48 | Least concern |
 Goniobranchus DaphneGoniobranchus daphne | – | – | – | 48 | Least concern |
 Aegires LeuckartiiAegires leuckartii | – | – | – | 48 | Least concern |
 Polka-dot Gobble DoridGymnodoris ceylonica | – | 4cm | – | 47 | Least concern |
| Pikachu NudibranchThecacera pikachu | Easy to miss | – | – | 47 | Least concern |
 Hypselodoris jacksoniHypselodoris jacksoni | – | – | – | 47 | Least concern |
 Verconia HaliclonaVerconia haliclona | – | – | – | 46 | Least concern |
 Spurilla sargassicolaSpurilla sargassicola | – | 3cm | – | 46 | Least concern |
 Tessellated HalgerdaHalgerda tessellata | – | 3cm | – | 46 | Least concern |
 Gritty DorisGeitodoris heathi | – | 2cm | – | 46 | Least concern |
 Fiery Pump DoridOkenia amoenula | – | – | – | 46 | Least concern |
 Aphelodoris luctuosaAphelodoris luctuosa | – | – | – | 45 | Least concern |
 Ghost DoridLecithophorus capensis | – | – | – | 45 | Least concern |
 NudibranchBerthella ocellata | – | – | – | 44 | Least concern |
 Glossodoris AngasiGlossodoris angasi | – | – | – | 44 | Least concern |
 Bushy-gilled Sucking DoridDendrodoris arborescens | – | – | – | 44 | Least concern |
 Hypselodoris PeaseiHypselodoris peasei | – | – | – | 44 | Least concern |
 Yellow-edged CadlinaCadlina luteomarginata | – | 3cm | – | 44 | Least concern |
 Aquafresh Rainbow DoridChromodoris hamiltoni | – | – | – | 43 | Least concern |
 Danielle's NudibranchThorunna daniellae | – | – | – | 43 | Least concern |
 Nudibranchus ExiguusNudibranchus exiguus | – | – | – | 43 | Least concern |
 Cape Silvertip FlameAntiopella capensis | – | – | – | 43 | Least concern |
 NudibranchAeolidiella alderi | – | – | – | 43 | Least concern |
 Carminodoris nodulosaCarminodoris nodulosa | – | – | – | 42 | Least concern |
 Yellow-beaded GrapedragonDoto ussi | – | – | – | 42 | Least concern |
 Melibe ColemaniMelibe colemani | – | – | – | 42 | Least concern |
| Polka-dotted NudibranchPhyllidia polkadotsa | Easy to miss | – | – | 42 | Least concern |
 Inornate GymnodorisGymnodoris inornata | – | – | – | 41 | Least concern |
 Red-spotted Rainbow DoridGoniobranchus heatherae | – | – | – | 41 | Least concern |
 Black NudibranchTambja capensis | – | – | Up to 30m | 41 | Least concern |
 Doriprismatica BalutDoriprismatica balut | – | – | – | 41 | Least concern |
 Medallion Silvertip FlameAntiopella longidentata | – | – | – | 40 | Least concern |
 Amphorina ViriolaAmphorina viriola | – | – | – | 40 | Least concern |
 Dark Crowned DoridPolycera hedgpethi | – | 2cm | 0-10m | 40 | Least concern |
 Dendrodoris LimbataDendrodoris limbata | – | – | – | 40 | Least concern |
 Coryphella PiuncaCoryphella piunca | – | – | – | 40 | Least concern |
 Orange-bobble Gobble DoridGymnodoris impudica | – | – | – | 40 | Least concern |
 Phyllodesmium JakobsenaePhyllodesmium jakobsenae | – | – | – | 40 | Least concern |
 Tyrannodoris LuteolineataTyrannodoris luteolineata | – | – | – | 40 | Least concern |
| Hypselodoris paradisaHypselodoris paradisa | Easy to miss | – | – | 40 | Least concern |
 Military Tentacle AeolidCaloria militaris | – | – | – | 39 | Least concern |
 Pallid GlossodorisGlossodoris pallida | – | 3cm | – | 39 | Least concern |
 Dubious DoridPalio dubia | – | 1cm | – | 39 | Least concern |
 Coryphella CapensisCoryphella capensis | – | – | – | 39 | Least concern |
 Ceratophyllidia papilligeraCeratophyllidia papilligera | – | 2cm | – | 39 | Least concern |
 Diamondback NudibranchTritonia festiva | – | 1cm | – | 39 | Least concern |
 Pikachu Longhorn DoridThecacera pacifica | – | 3cm | – | 38 | Least concern |
 Tenellia miniostriataTenellia miniostriata | – | – | – | 38 | Least concern |
| Yellow Dragon Lobe-margin DoridMiamira moloch | Easy to miss | – | – | 38 | Least concern |
 Simple Rainbow DoridVerconia simplex | – | – | – | 38 | Least concern |
 Phyllodesmium KoehleriPhyllodesmium koehleri | – | – | – | 37 | Least concern |
 Marcus' AeolidCoryphellina marcusorum | – | 1cm | – | 37 | Least concern |
 Ornate PinstripeDermatobranchus ornatus | – | 5cm | – | 37 | Least concern |
 Large Warted Sea SlugDoris fontainii | – | 8cm | – | 35 | Least concern |
 Doto CervicenigraDoto cervicenigra | – | – | – | 35 | Least concern |
 Thorunna KahunaThorunna kahuna | – | – | – | 35 | Least concern |
 White-centred Rainbow DoridArdeadoris angustolutea | – | – | – | 35 | Least concern |
 Polycera faeroensisPolycera faeroensis | – | – | – | 34 | Least concern |
 Coryphella chriskaugeiCoryphella chriskaugei | – | – | – | 34 | Least concern |
 Nanuca SebastianiNanuca sebastiani | – | 1cm | – | 34 | Least concern |
 Fleshy DoriopsillaDoriopsilla carneola | – | 1cm | – | 34 | Least concern |
 Bermudella brunneomaculataBermudella brunneomaculata | – | – | – | 34 | Least concern |
 Blue Dorid NudibranchHypselodoris festiva | – | – | – | 33 | Least concern |
 GastropodTritoniopsis frydis | – | 1cm | – | 33 | Least concern |
 Miraculous Egg-eaterFavorinus mirabilis | – | – | – | 33 | Least concern |
 Unidentia sandramillenaeUnidentia sandramillenae | – | – | – | 33 | Least concern |
 MarioniaMarionia blainvillea | – | – | – | 33 | Least concern |
 Coryphellina PoeniciaCoryphellina poenicia | – | – | – | 33 | Least concern |
 Phyllidia RueppeliiPhyllidia rueppelii | – | – | – | 32 | Least concern |
 Green/gold TulariaTularia bractea | – | – | – | 32 | Least concern |
 Dotted Bristle Sea SlugDiaulula punctuolata | – | 7cm | – | 32 | Least concern |
 Nembrotha LorosaeNembrotha lorosae | – | – | – | 32 | Least concern |
 Yellow Skirt SlugOkenia elegans | – | – | – | 32 | Least concern |
 Coral NudibranchPhyllodesmium serratum | – | 2cm | 0-30m | 31 | Least concern |
 Goniobranchus tasmaniensisGoniobranchus tasmaniensis | – | – | – | 31 | Least concern |
 Kelp Orange-clubbed DoridLimacia jellyi | – | – | – | 31 | Least concern |
 Aeolidia LouiAeolidia loui | – | – | – | 31 | Least concern |
 Chromodoris KalawakanChromodoris kalawakan | – | – | – | 30 | Least concern |
| Jason mirabilisJason mirabilis | Easy to miss | – | – | 30 | Least concern |
 Wasp Rainbow DoridGlossodoris bonwanga | – | – | – | 30 | Least concern |
| Marie's MexichromisMexichromis mariei | Easy to miss | – | – | 30 | Least concern |
 Doto FloridicolaDoto floridicola | – | – | – | 30 | Least concern |
 Gorgeous Triple-toothFlabellina funeka | – | – | – | 30 | Least concern |
 Golden NoumeaDiversidoris crocea | – | – | – | 29 | Least concern |
 GastropodAustraeolis catina | – | 1cm | – | 29 | Least concern |
 Multicoloured Anemone EaterBaeolidia moebii | – | – | – | 29 | Least concern |
 Small DotoDoto pita | – | 1cm | – | 29 | Least concern |
 African Rainbow DoridChromodoris africana | – | 4cm | – | 29 | Least concern |
 Coryphella LongicaudataCoryphella longicaudata | – | – | – | 29 | Least concern |
 Doris CameroniDoris cameroni | – | – | – | 29 | Least concern |
 Strawberry RostangaRostanga arbutus | – | – | – | 29 | Least concern |
 Nanuca LealiNanuca leali | – | – | – | 29 | Least concern |
 GastropodAphelodoris antillensis | – | – | – | 29 | Least concern |
 Orange-barred MexichromisMexichromis macropus | – | 2cm | – | 28 | Least concern |
 Learchis evelinaeLearchis evelinae | – | – | – | 28 | Least concern |
 Phyllodesmium OpalescensPhyllodesmium opalescens | – | – | – | 28 | Least concern |
| Pancake Lobe-margin DoridMiamira miamirana | Easy to miss | – | – | 28 | Least concern |
 Ardeadoris tomsmithiArdeadoris tomsmithi | – | – | – | 27 | Least concern |
 Mimic NudibranchPhyllodesmium rudmani | – | – | – | 27 | Least concern |
 Polycera norvegicaPolycera norvegica | – | – | – | 27 | Least concern |
 Reef Orange-clubbed DoridLimacia lucida | – | – | – | 27 | Least concern |
 Doriopsilla GemelaDoriopsilla gemela | – | 2cm | – | 27 | Least concern |
 Antiopella BarbarensisAntiopella barbarensis | – | – | – | 27 | Least concern |
 Verco's VerconiaVerconia verconis | – | 3cm | – | 26 | Least concern |
 Ridged GymnodorisGymnodoris crocea | – | – | – | 26 | Least concern |
 Ardeadoris rubroannulataArdeadoris rubroannulata | – | – | – | 26 | Least concern |
 Goniobranchus epicuriusGoniobranchus epicurius | – | – | – | 26 | Least concern |
| Solar-powered NudibranchPhyllodesmium longicirrum | Hard to spot | – | – | 26 | Least concern |
 Goniobranchus ThompsoniGoniobranchus thompsoni | – | – | – | 26 | Least concern |
 Blue-ringed Rainbow DoridGoniobranchus geminus | – | 4cm | – | 26 | Least concern |
 Oriental NudibranchChromodoris orientalis | – | – | – | 25 | Least concern |
 Leather Backed DorisPlatydoris angustipes | – | – | – | 25 | Least concern |
 Goniobranchus SinensisGoniobranchus sinensis | – | – | – | 25 | Least concern |
 Cadlina sylviaearleaeCadlina sylviaearleae | – | – | – | 25 | Least concern |
 Carlson's HalgerdaHalgerda carlsoni | – | 4cm | – | 25 | Least concern |
 Goniobranchus albopustulosusGoniobranchus albopustulosus | – | – | – | 24 | Least concern |
 Diana's ChromodorisChromodoris dianae | – | – | – | 24 | Least concern |
 Red-ringed BluntnoseSamla bilas | – | – | – | 24 | Least concern |
 Tambja MullineriTambja mullineri | – | 3cm | – | 24 | Least concern |
 Hypselodoris KatherinaeHypselodoris katherinae | – | – | – | 23 | Least concern |
 Yellow-spotted CadlinaCadlina flavomaculata | – | 0cm | – | 23 | Least concern |
 Luisella EngeliLuisella engeli | – | – | – | 23 | Least concern |
 Doto GreenamyeriDoto greenamyeri | – | – | – | 22 | Least concern |
 Hypselodoris ViolaceaHypselodoris violacea | – | – | – | 22 | Least concern |
 Painted DironaDirona picta | – | 2cm | – | 22 | Least concern |
 Precious ChromodorisGoniobranchus preciosus | – | – | – | 22 | Least concern |
 Orange Dragon SlugBornella calcarata | – | 4cm | – | 22 | Least concern |
 Goniobranchus woodwardaeGoniobranchus woodwardae | – | – | – | 22 | Least concern |
 Dondice FreddiemercuryiDondice freddiemercuryi | – | – | – | 22 | Least concern |
 Rustic AeolidEubranchus rustyus | – | 1cm | – | 21 | Least concern |
 Hypselodoris saintvincentiusHypselodoris saintvincentius | – | – | – | 21 | Least concern |
 Hill's PleurobranchusPleurobranchus hilli | – | 21cm | – | 21 | Least concern |
 Freckled Soft Coral EaterPhyllodesmium macphersonae | – | – | – | 21 | Least concern |
 Blood Spot DorisAldisa sanguinea | – | 1cm | – | 21 | Least concern |
 Tenellia PutiTenellia puti | – | – | – | 21 | Least concern |
 Beaded Soft Coral EaterPhyllodesmium crypticum | – | – | – | 21 | Least concern |
 Hammerhead DotoDoto amyra | – | 1cm | – | 20 | Least concern |
 Sea Whip SlugTritonicula wellsi | – | 1cm | – | 20 | Least concern |
 Kaloplocamus ramosusKaloplocamus ramosus | – | – | – | 20 | Least concern |
 Wellington ArchidorisDoris wellingtonensis | – | 14cm | – | 20 | Least concern |
 White DendronotidDendronotus albus | – | 3cm | – | 19 | Least concern |
 Queen Split-tooth DoridHypselodoris regina | – | – | – | 19 | Least concern |
 Carminodoris EstrelyadoCarminodoris estrelyado | – | – | – | 19 | Least concern |
 Olive DoridTambja olivaria | – | 4cm | – | 19 | Least concern |
 Inkspot Pantechnicon DoridCeratosoma ingozi | – | – | – | 19 | Least concern |
 Berthellina delicataBerthellina delicata | – | – | – | 19 | Least concern |
 Fine-lined TambjaTambja tenuilineata | – | – | – | 18 | Least concern |
 Blue-speckled Sucking DoridDendrodoris caesia | – | – | – | 18 | Least concern |
 Four-colour NudibranchGodiva quadricolor | – | 2cm | – | 18 | Least concern |
 Dirona pellucidaDirona pellucida | – | – | – | 18 | Least concern |
 Dicata odhneriDicata odhneri | – | – | – | 18 | Least concern |
 Hiatodoris FellowsiHiatodoris fellowsi | – | – | – | 18 | Least concern |
 Brown TrapaniaTrapania brunnea | – | – | 0-20m | 18 | Least concern |
 Pleurobranchus weberiPleurobranchus weberi | – | – | – | 18 | Least concern |
| Starry DoriprismaticaDoriprismatica stellata | Easy to miss | – | – | 18 | Least concern |
 Spitfire Tentacle AeolidPruvotfolia rhodopos | – | – | – | 17 | Least concern |
 Three-color PolyceraPolycera tricolor | – | 1cm | – | 17 | Least concern |
 Cuthona TinaCuthona tina | – | – | – | 17 | Least concern |
 Limacia inesaeLimacia inesae | – | – | – | 17 | Least concern |
 Purple-spotted HypselodorisHypselodoris purpureomaculosa | – | – | – | 17 | Least concern |
 White Night DorisDoris odhneri | – | 14cm | – | 17 | Least concern |
| Dendrodoris grandifloraDendrodoris grandiflora | Easy to miss | – | – | 17 | Least concern |
 Miamira flavicostataMiamira flavicostata | – | – | – | 17 | Least concern |
 Rose-pink CuthonaCuthona divae | – | 1cm | – | 16 | Least concern |
 Coryphella TrophinaCoryphella trophina | – | – | – | 16 | Least concern |
 Rostanga crawfordiRostanga crawfordi | – | – | – | 16 | Least concern |
 False DorisAdalaria proxima | – | 1cm | – | 16 | Least concern |
 Pastel Rainbow DoridGlossodoris hikuerensis | – | 6cm | – | 16 | Least concern |
 Anteaeolidiella oliviaeAnteaeolidiella oliviae | – | – | – | 16 | Least concern |
 Bulbaeolidia OasisBulbaeolidia oasis | – | – | – | 16 | Least concern |
 Magnificent Soft Coral EaterPhyllodesmium magnum | – | 9cm | – | 15 | Least concern |
 Mosaic PleurobranchPleurobranchus albiguttatus | – | – | – | 15 | Least concern |
 Coleman's PhyllodesmiumPhyllodesmium colemani | – | – | – | 15 | Least concern |
 Baenopsis BaeticaBaenopsis baetica | – | – | – | 15 | Least concern |
 Ceratodoris mellitaCeratodoris mellita | – | – | – | 15 | Least concern |
 Rudman's PhyllidiellaPhyllidiella rudmani | – | 4cm | – | 15 | Least concern |
 Gabriela's TambjaTambja gabrielae | – | – | – | 15 | Least concern |
 Armina scottiArmina scotti | – | – | – | 15 | Least concern |
 Doto FurvaDoto furva | – | – | – | 15 | Least concern |
 Porcupine DoridDiaphorodoris lirulatocauda | – | 1cm | – | 15 | Least concern |
 Ward's NudibranchNotobryon wardi | – | 2cm | Up to 15m | 15 | Least concern |
 Doto UrakDoto urak | – | – | – | 14 | Least concern |
 California ArminaArmina californica | – | 4cm | 0-260m | 14 | Least concern |
 Dainty Rainbow DoridGoniobranchus conchyliatus | – | – | – | 14 | Least concern |
 Favorinus vitreusFavorinus vitreus | – | – | – | 14 | Least concern |
 Lemon NudibranchDendrodoris citrina | – | – | – | 14 | Least concern |
 Goniobranchus aureomarginatusGoniobranchus aureomarginatus | – | – | – | 14 | Least concern |
 Frilled NudibranchLeminda millecra | – | – | – | 14 | Least concern |
 Starburst Sucking DoridDendrodoris elongata | – | – | – | 14 | Least concern |
 Goniobranchus FabulusGoniobranchus fabulus | – | – | 3-15m | 13 | Least concern |
 Cerberilla PotiguaraCerberilla potiguara | – | – | – | 13 | Least concern |
 White Mantle GlossodorisGlossodoris buko | – | – | – | 13 | Least concern |
 Dermatobranchus caeruleomaculatusDermatobranchus caeruleomaculatus | – | – | – | 13 | Least concern |
 Anteaeolidiella chromosomaAnteaeolidiella chromosoma | – | – | – | 13 | Least concern |
 Austraeolis StearnsiAustraeolis stearnsi | – | – | – | 13 | Least concern |
 Palisa PapillataPalisa papillata | – | 1cm | – | 12 | Least concern |
 Gymnodoris StriataGymnodoris striata | – | 4cm | – | 12 | Least concern |
 Produnga RubropunctataProdunga rubropunctata | – | – | – | 12 | Least concern |
 Idaliadoris DepressaIdaliadoris depressa | – | – | – | 12 | Least concern |
 Pom-pom TaringaTaringa halgerda | – | – | – | 12 | Least concern |
 Plocamopherus MaderaePlocamopherus maderae | – | – | – | 12 | Least concern |
 Black-tipped Spiny DorisAcanthodoris rhodoceras | – | 2cm | – | 11 | Least concern |
 Baba's Festive AeolidBabakina festiva | – | 1cm | – | 11 | Least concern |
 Marioniopsis ViridescensMarioniopsis viridescens | – | – | – | 11 | Least concern |
 Maritime HypselodorisHypselodoris maritima | – | – | – | 11 | Least concern |
 Apata PriceiApata pricei | – | – | – | 11 | Least concern |
 Flowering ThorunnaThorunna florens | – | – | – | 11 | Least concern |
 Ridged Granulated DoridAtagema intecta | – | 4cm | – | 11 | Least concern |
 Armina OccultaArmina occulta | – | – | – | 11 | Least concern |
 Tenellia thelmaeTenellia thelmae | – | – | – | 11 | Least concern |
 Sandy Bead-noseNoumeaella rehderi | – | – | – | 11 | Least concern |
 Acute KaloplocamusKaloplocamus acutus | – | – | – | 10 | Least concern |
 Stubby DendronotusDendronotus subramosus | – | 2cm | – | 10 | Least concern |
 Variable Granulated DoridSclerodoris tuberculata | – | – | – | 10 | Least concern |
 Chromodoris CelinaeChromodoris celinae | – | – | – | 10 | Least concern |
 Martadoris LimaciformisMartadoris limaciformis | – | – | – | 10 | Least concern |
 Bushy LacedragonMarioniopsis arborescens | – | – | – | 10 | Least concern |
 The Limbaugh's CadlinaCadlina limbaughorum | – | 2cm | – | 10 | Least concern |
 Idaliadoris NeapolitanaIdaliadoris neapolitana | – | – | – | 9 | Least concern |
 Goniobranchus HunteraeGoniobranchus hunterae | – | – | – | 9 | Least concern |
 Solanderia AeolidPleurolidia juliae | – | – | – | 9 | Least concern |
 Janolus mokohinauJanolus mokohinau | – | – | – | 9 | Least concern |
 Hypselodoris SkyleriHypselodoris skyleri | – | – | – | 9 | Least concern |
 Benn's TrapaniaTrapania benni | – | – | – | 9 | Least concern |
 Cabangus RegiusCabangus regius | – | – | – | 9 | Least concern |
 Showman Wrinkle DoridNembrotha aurea | – | – | – | 9 | Least concern |
 Two-spot ThordisThordisa bimaculata | – | 2cm | – | 9 | Least concern |
 Willan's PhyllidiaPhyllidia willani | – | – | – | 9 | Least concern |
 Phyllodesmium hyalinumPhyllodesmium hyalinum | – | – | – | 9 | Least concern |
 Tenellia albocrustaTenellia albocrusta | – | – | – | 9 | Least concern |
 Alloiodoris lanuginataAlloiodoris lanuginata | – | – | – | 9 | Least concern |
 Murphydoris adustaMurphydoris adusta | – | – | – | 8 | Least concern |
 Spotted RoundheadEubranchus ocellatus | – | – | – | 8 | Least concern |
 Goniobranchus loringiGoniobranchus loringi | – | – | – | 8 | Least concern |
 Dappled Pump DoridTrapania euryeia | – | – | – | 8 | Least concern |
 Janolus EximiusJanolus eximius | – | – | – | 8 | Least concern |
 Tenellia NakapilaTenellia nakapila | – | – | – | 8 | Least concern |
 Hypselodoris IbaHypselodoris iba | – | – | – | 8 | Least concern |
 Panther JorunnaJorunna pantherina | – | 1cm | – | 8 | Least concern |
 Corambe steinbergaeCorambe steinbergae | – | – | – | 8 | Least concern |
 Dark DotoDoto kya | – | 1cm | – | 8 | Least concern |
 Ardeadoris averniArdeadoris averni | – | – | – | 8 | Least concern |
 Decorated ChromodorisGoniobranchus decorus | – | 1cm | – | 7 | Least concern |
 Livingstone's NembrothaNembrotha livingstonei | – | 3cm | – | 7 | Least concern |
 Corambe PacificaCorambe pacifica | – | – | – | 7 | Least concern |
 Blue-banded Pump DoridTrapania palmula | – | – | – | 7 | Least concern |
 Thecacera MelkyiThecacera melkyi | – | – | – | 7 | Least concern |
 Atagema spongiosaAtagema spongiosa | – | – | – | 7 | Least concern |
 Platydoris SanguineaPlatydoris sanguinea | – | – | – | 7 | Least concern |
 Coryphella cooperiCoryphella cooperi | – | – | – | 7 | Least concern |
 Bermudella AngelensisBermudella angelensis | – | – | – | 7 | Least concern |
 Ceratodoris atkinsonorumCeratodoris atkinsonorum | – | – | – | 7 | Least concern |
 Tenellia BughawTenellia bughaw | – | – | – | 7 | Least concern |
 Orange-peel DorisAcanthodoris lutea | – | 2cm | – | 7 | Least concern |
 Verconia RomeriVerconia romeri | – | – | – | 7 | Least concern |
 Nembrotha MullineriNembrotha mullineri | – | – | – | 7 | Least concern |
 Miamira AlleniMiamira alleni | – | – | – | 7 | Least concern |
 Porcupine SakuraeolisSakuraeolis nungunoides | – | – | – | 6 | Least concern |
 Lion Mane AeolidPauleo jubatus | – | 4cm | – | 6 | Least concern |
 Hypselodoris ConfettiHypselodoris confetti | – | – | – | 6 | Least concern |
 Mimic DoridBaptodoris mimetica | – | 3cm | – | 6 | Least concern |
 Harlequin FlameJanolus savinkini | – | – | – | 6 | Least concern |
 Wide-margined Rainbow DoridThorunna halourga | – | – | – | 6 | Least concern |
 Chan's DoridHallaxa chani | – | 2cm | – | 6 | Least concern |
 Fragile DiscodorisSebadoris fragilis | – | 7cm | – | 6 | Least concern |
 Lion Tentacle AeolidCratena simba | – | – | – | 6 | Least concern |
 Orange-edged Pump DoridTrapania vitta | – | – | – | 6 | Least concern |
 Southern BaeolidiaBaeolidia australis | – | 3cm | – | 6 | Least concern |
 Hypselodoris BertschiHypselodoris bertschi | – | – | – | 6 | Least concern |
 Green Candy RoundheadTenellia speciosa | – | – | – | 6 | Least concern |
 Asteronotus mimeticusAsteronotus mimeticus | – | – | – | 5 | Least concern |
 Phyllidiopsis sinaiensisPhyllidiopsis sinaiensis | – | – | – | 5 | Least concern |
 Filigreed Lightbulb DoridPlocamopherus ceylonicus | – | – | – | 5 | Least concern |
 Modest CadlinaCadlina modesta | – | 2cm | – | 5 | Least concern |
 Eubranchopsis VirginalisEubranchopsis virginalis | – | – | – | 4 | Least concern |
 Purple-ringed BluntnoseSamla riwo | – | – | – | 4 | Least concern |
 Diversidoris sulphureaDiversidoris sulphurea | – | – | – | 4 | Least concern |
 Red-headed AeolidNoumeaella rubrofasciata | – | 1cm | – | 4 | Least concern |
 Purple Spotted NudibranchChromodoris aspersa | – | 3cm | – | 4 | Least concern |
 Nightsky Tentacle AeolidAmanda armata | – | – | – | 4 | Least concern |
 Twinspot Rainbow DoridMexichromis pusilla | – | – | – | 4 | Least concern |
 Smoky Sucking DoridDendrodoris fumata | – | – | – | 4 | Least concern |
 Lemon PleurobranchBerthellina citrina | – | 2cm | – | 4 | Least concern |
 Egg-eating NudibranchFavorinus japonicus | – | – | – | 4 | Least concern |
 Snow Queen LacedragonTritoniopsis elegans | – | 4cm | – | 4 | Least concern |
 Dark-spot CadlinaCadlina sparsa | – | 3cm | – | 4 | Least concern |
 Scott Johnson's NudibranchArdeadoris scottjohnsoni | – | – | – | 4 | Least concern |
 Melibe CoralophiliaMelibe coralophilia | – | – | – | 4 | Least concern |
 Tenellia kuiterorumTenellia kuiterorum | – | – | – | 4 | Least concern |
 Anteaeolidiella cacaoticaAnteaeolidiella cacaotica | – | – | – | 4 | Least concern |
 Phyllodesmium IriomotensePhyllodesmium iriomotense | – | – | – | 3 | Least concern |
 Beaded Anemone EaterLimenandra confusa | – | – | – | 3 | Least concern |
 Warty Soft Coral EaterPhyllodesmium tuberculatum | – | – | – | 3 | Least concern |
 British Columbia DotoDoto columbiana | – | 1cm | – | 3 | Least concern |
 Blue DoriopsisDoriopsis pecten | – | 1cm | – | 3 | Least concern |
 Sea BunnyJorunna parva | – | – | – | 3 | Least concern |
 Lemon-drop Longtail DoridDiversidoris flava | – | – | – | 3 | Least concern |
 Dermatobranchus funiculusDermatobranchus funiculus | – | – | – | 3 | Least concern |
 Burnt-edged Pump DoridPelagella longicornis | – | – | – | 3 | Least concern |
 Coryphellina lotosCoryphellina lotos | – | – | – | 3 | Least concern |
 Bolland's HypselodorisHypselodoris bollandi | – | – | – | 2 | Least concern |
 Trapania toddiTrapania toddi | – | – | – | 2 | Least concern |
 Cardinal PhyllidiopsisPhyllidiopsis cardinalis | – | 4cm | – | 2 | Least concern |
 Wormy NudibranchLomanotus vermiformis | – | 1cm | – | 2 | Least concern |
 Trapania miltabranchaTrapania miltabrancha | – | – | – | 2 | Least concern |
 Janolus incrustansJanolus incrustans | – | – | – | 2 | Least concern |
 Hypselodoris violabranchiaHypselodoris violabranchia | – | – | – | 2 | Least concern |
 Polka-dot Sucking DoridDendrodoris guttata | – | – | – | 2 | Least concern |
 Longhorn Pump DoridGoniodoridella savignyi | – | – | – | 2 | Least concern |
 Pacific AnculaAncula pacifica | – | – | – | 2 | Least concern |
 Trapania ToraTrapania tora | – | – | – | 1 | Least concern |
 Coral Feeding AeolidPhestilla lugubris | – | 4cm | – | 1 | Least concern |
 Doriopsilla RowenaDoriopsilla rowena | – | – | – | 1 | Least concern |
 White-speckled Sponge DoridRostanga lutescens | – | – | – | 1 | Least concern |
 Holey Split-tooth DoridHypselodoris lacuna | – | – | – | 1 | Least concern |
 Tritonia ExsulansTritonia exsulans | – | 3cm | – | 1 | Least concern |
 Trapania scurraTrapania scurra | – | – | – | 1 | Least concern |
 Bermudella MijaBermudella mija | – | – | – | 1 | Least concern |
 Trapania KamagongTrapania kamagong | – | – | – | 1 | Least concern |
 Janolus flavoanulatusJanolus flavoanulatus | – | – | – | 1 | Least concern |
 Feather AeolidFiona pinnata | – | 1cm | – | 1 | Least concern |
 Coryphellina delicataCoryphellina delicata | – | – | – | 1 | Least concern |
 Trapania TamarawTrapania tamaraw | – | – | – | 1 | Least concern |
 Southern Rainbow DoridThorunna australis | – | – | – | 1 | Least concern |
 Phyllodesmium ParangatumPhyllodesmium parangatum | – | – | – | 1 | Least concern |
 Scribbled Tentacle AeolidFacelina bourailli | – | – | – | 1 | Least concern |
 White-stripe Rainbow DoridVerconia norba | – | – | – | 1 | Least concern |