Aplysiidae
Every other invertebrate on Fin, recorded across our dive sites.
Aplysiidae spp.
Pycnogonida spp.
Ascidiacea spp.
Pyrosoma atlanticum
Pyura spinifera
Limulus polyphemus
Pyrostremma spinosum
Nausithoe punctata
Carybdea rastonii
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 HareAplysiidae spp. |
| Usually seen |
| – |
| – |
| 6,019 |
| Least concern |
 Sea SpiderPycnogonida spp. | Easy to miss | – | – | 4,084 | Least concern |
 Sea SquirtAscidiacea spp. | Easy to spot | – | – | 3,584 | Least concern |
| Atlantic PyrosomesPyrosoma atlanticum | Usually seen | – | – | 170 | Least concern |
 Sea TulipPyura spinifera | Easy to spot | – | Up to 80m | 149 | Least concern |
| Horseshoe CrabLimulus polyphemus | Usually seen | – | – | 135 | Vulnerable |
| Giant SalpPyrostremma spinosum | Easy to miss | – | – | 80 | Least concern |
 Crown JellyfishNausithoe punctata | – | 1cm | – | 5 | Least concern |
 JimbleCarybdea rastonii | – | 2cm | – | 1 | Least concern |