Fin's Fish Guide
The Bigmouth sucker (Catostomus leopoldi) is a freshwater fish of the family Catostomidae that grows up to 30 cm.
Description
The Bigmouth sucker is a sucker (Catostomidae) from clear rivers, streams and lakes of northern Mexico. The species grows to about 30 cm and has an elongate, silver-brown body with an inferior, fleshy, protrusible sucker mouth with thick lips. As a bottom-dweller it sucks small invertebrates, insect larvae, algae and detritus from sand, gravel and stones. It is locally a food fish. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Bigmouth sucker?
The Bigmouth sucker has an elongate, eel-like body and is mainly brown.
Where does the Bigmouth sucker live?
The Bigmouth sucker lives in fresh water and is mostly found around sand or mud bottom. North America: Mexico
How big does the Bigmouth sucker get?
The Bigmouth sucker grows to a maximum of about 30 cm.
Is the Bigmouth sucker dangerous to humans?
No, the Bigmouth sucker 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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Point your camera at the fish and Fin names the species in seconds. Free, and the Bigmouth sucker is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Catostomus
More from the family Catostomidae
Want the complete picture on the Bigmouth sucker?
Point your camera at the fish and Fin names the species in seconds. Free, and the Bigmouth sucker is one of 12,519 species in the app.