Spotted Scorpionfish in Cozumel

A lumpy, mottled fish that looks exactly like the rock it is sitting on, with feathery skin flaps over the eyes. The giveaway is the flash of black-and-white banding on the inner pectoral fins when it moves.

Quick ID

Where You Will See It In Cozumel

Spotted Scorpionfish works the 9 to 98 foot band. On this island that means the sheltered west-coast reefs, and the shallow east-side entries when the sea is flat — these are the sites where the depth and the habitat line up for it.

Without a boat. It is worth looking for at Money Bar, Playa Corona and Punta Morena — all shore entries, so you dive them on your own schedule.

On an ordinary beginner boat dive. It should be within reach at Las Palmas, Molas Shallow, Palancar Gardens, Paradise and Punta Dalila. No advanced certification needed.

Deeper, and on the walls. It is also plausible on Chun-Chacaab, Colombia Deep, Devil's Throat and Los Atolones.

Conditions change the odds more than the site does — the current, the time of day and how much the group has already stirred up the sand. Ask your guide what they have been seeing that week.

Behaviour

An ambush predator that will not move until something is almost touching it — which is what makes it a hazard. It relies entirely on not being seen.

Commonly Confused With

• Lionfish — The lionfish is boldly striped with long open fins; the scorpionfish is flattened, mottled and pressed to the substrate.
• Frogfish — Frogfish have a rounder body and a fishing lure on the forehead.

Diving Etiquette And Safety

Venomous dorsal spines. This is the single strongest argument for perfect buoyancy and for never putting a hand down on the reef to steady yourself.

Part of the Cozumel marine life guide · see Cozumel dive sites · plan your Cozumel dive trip

Photo: Betty Wills, CC BY-SA 4.0, via Wikimedia Commons.