Fin's Fish Guide
The Sleeper (Gobiomorus maculatus) is a brackish-water fish of the family Eleotridae that grows up to 27 cm.
Description
The Pacific sleeper is a fish of the family Eleotridae (sleeper gobies) from the eastern Pacific. The species has an elongate, brown spotted body with a large, upturned mouth and reaches about 27 cm. It inhabits rivers, creeks and lakes, from brackish swamps to several hundred metres above sea level. Juveniles are abundant near the coast, suggesting reproduction in marine or brackish water. It is an ambush predator feeding on crustaceans and fishes.
Frequently asked questions
How do you recognise the Sleeper?
The Sleeper has an elongate, eel-like body, is mainly brown and shows a spots pattern. Stocky stalking predator of rivers and estuaries; juveniles numerous near the coast.
Where does the Sleeper live?
The Sleeper lives in brackish water and is mostly found around sand or mud bottom. Eastern Pacific, from Mexico to Peru; rivers and estuaries.
How big does the Sleeper get?
The Sleeper grows to a maximum of about 27 cm.
Is the Sleeper dangerous to humans?
No, the Sleeper is harmless to humans. None required: this species is harmless to humans.
Is the Sleeper edible?
The Sleeper is rarely eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Gobiomorus
More from the family Eleotridae
Want the complete picture on the Sleeper?
Point your camera at the fish and Fin names the species in seconds. Free, and the Sleeper is one of 12,519 species in the app.