The Sonora clingfish (Tomicodon humeralis) is a saltwater fish of the family Gobiesocidae that grows up to 9 cm.
Description
The Sonora clingfish is a small clingfish (Gobiesocidae) from shallow rocky and intertidal areas of the eastern Pacific, in the Gulf of California. The species grows to about 5 cm and has a scaleless, pear-shaped body with a flat head and a powerful sucker disc on the belly, formed from the pelvic fins, with which it clamps onto stones in the surf. As a bottom-dweller it shelters under stones and in crevices and snaps at small crustaceans, snails and worms. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Sonora clingfish?
The Sonora clingfish has an elongate, eel-like body, is mainly brown and shows a spots pattern.
Where does the Sonora clingfish live?
The Sonora clingfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. North America: Mexico
How big does the Sonora clingfish get?
The Sonora clingfish grows to a maximum of about 9 cm.
Is the Sonora clingfish dangerous to humans?
No, the Sonora clingfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Tomicodon
More from the family Gobiesocidae

Want the complete picture on the Sonora clingfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Sonora clingfish is one of 12,519 species in the app.