Chirodactylus variegatus
Cool-water reef fish logged mostly around Pucusana, Peru, in 12 to 20.5C water, year-round sightings.
A stocky, deep-bodied reef fish around 31 cm with a mottled grey to brown pattern that breaks up its outline against rocky reef. Look for the humped profile behind the head and thick, almost rubbery lips typical of morwongs, used for picking at the reef surface. It moves in short glides close to the bottom rather than swimming openly in the water column.
Divers usually find it hugging structure low on rocky reef, working the surface for food with its thick lips rather than chasing anything down. It tends to hold its ground or drift a short distance off when approached rather than bolting, and sightings at most sites are logged as uncommon, so a calm, unhurried look along the reef base is the best way to spot one.
Its thick, fleshy lips are built for grazing invertebrates directly off rock surfaces, a feeding style shared across the morwong family that keeps it tethered close to structure rather than out in open water.
No clear seasonal pattern shows up in the sightings, so treat it as a year-round resident of these cool temperate reefs, comfortable across the 11.7 to 20.5C range typical of the Peru and Chile coasts.
Reef neighbours a diver could mistake it for. Use the identification notes above to tell them apart.
Most reliably logged around Pucusana in Peru, which accounts for nearly all recorded sightings, with an additional record from Valparaíso in Chile. Divers working the cool, rocky reefs of Peru's central coast have the best odds of a sighting, usually logged as uncommon rather than a guaranteed find.
Mapping where Peruvian Morwong is logged…
The strongest population by far is around Pucusana on Peru's central coast, where most sightings are logged. A single record also comes from Valparaíso in Chile, so Peru is the far more reliable bet.
There is no detected seasonal peak, so it can turn up any month. It lives in cool water between roughly 12 and 20.5C, matching the year-round conditions off Peru's central coast.
Look for a stocky, mottled grey-brown fish around 31 cm long with a humped head profile and thick lips, holding close to rocky reef structure. It moves in short hops near the bottom rather than swimming in open water.
They reach around 31 cm in length, a modest, solidly built reef fish rather than anything oversized.
No, they pose no danger to divers. They are a bottom-grazing reef fish with no venom or aggressive behaviour to worry about.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Barberfish
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