Bigmouth Sleeper
Gobiomorus dormitor
Also called sleeper goby, sleeper
A large freshwater goby native to Central America and the Caribbean, known for its oversized mouth and predatory feeding habits. They are primarily found in rivers, lakes, and lagoons.
Bigmouth Sleeper at a glance
- Scientific name
- Gobiomorus dormitor
- Typical size
- 12-24 inches, 1-4 lbs
- Water
- Freshwater
- Habitat
- Freshwater
- Rarity in the Fishdex™
- Uncommon
Habitat
Bigmouth sleepers inhabit freshwater systems including rivers, lakes, and coastal lagoons from southern Mexico through Central America and the Caribbean islands. They prefer areas with structure like fallen trees or rocky bottoms where they ambush prey. Anglers typically catch them using live or cut bait near cover.
Catch one and it is yours
Log a bigmouth sleeper through the Cobia Camera and this entry fills in with your photo, your personal best, and the exact conditions on the day. The app also carries the slot and season rules for wherever you are standing.
How the Fishdex™ worksBigmouth Sleeper questions people ask
Bigmouth Sleeper is Gobiomorus dormitor. Anglers also call it sleeper goby, sleeper.
A typical bigmouth sleeper runs 12-24 inches, 1-4 lbs. Cobia records the length and weight of every bigmouth sleeper you log and keeps your personal best on its Fishdex entry.
Bigmouth sleepers inhabit freshwater systems including rivers, lakes, and coastal lagoons from southern Mexico through Central America and the Caribbean islands. They prefer areas with structure like fallen trees or rocky bottoms where they ambush prey. Anglers typically catch them using live or cut bait near cover. It is a fresh water species, filed under freshwater in the Fishdex.
Yes. Log one through the Cobia Camera and this entry fills in with your own photo, your personal best, and the conditions on the day you caught it. The app also carries the slot limits and season dates for wherever you are standing. It is free.
Tomorrow morning starts tonight
Set your home water, pick a drive radius, and wake up to a plan.
Android coming soon
iPhone, iOS 17 or later. Setup takes about a minute.