Freshwater

Alaska blackfish

Dallia pectoralis

The Alaska blackfish can be identified by its short, flattened snout, the posterior position of the …

Atlantic stingray

Dasyatis sabina

The Atlantic stingray has an elongated, pointed snout. Spiracles are located behind the eyes. The ventral …

Brazhnikov's catfish

Tachysurus brashnikowi

Brazhnikov's catfish belongs to the family Bagridae (bagrid catfishes). The species is a demersal fish, meaning …

Brook lamprey

Lampetra planeri

The brook lamprey has an elongated, eel-like (anguilliform) body that is completely scaleless. It is the …

Campylomormyrus curvirostris

Campylomormyrus curvirostris, gnathonemus curvirostris, campylomormyrus rhynchophorus.

The snout of Campylomormyrus curvirostris is highly elongated and curved downward like a trunk, with a …

Campylomormyrus numenius

Campylomormyrus numenius

Campylomormyrus numenius possesses a highly elongated, ventrally curved rostrum, analogous to an elephant's trunk, terminating in …

Dace

Rhinichthys cataractae

Dace have a slender body. Most species have terminal antennae. The pearl dace (Semotilus margarita margarita) …

Dace, Longnose

Rhinichthys cataractae

The longnose dace is a distinctive minnow with a long, fleshy snout, a subterranean mouth and …

Drum, Freshwater

Aplodinotus grunniens

The body is deep, with a crooked back, a blunt snout and a subterranean mouth adapted …

Hogsucker, Northern

Hypentelium nigricans

The Northern Hogsucker gets its name from its pig-like appearance, especially its head. It has a …

Scaly osman

Diptychus maculatus

The body of the Scaly osman is fusiform (spindle-shaped), elongate, and shallow. The mouth is inferior …

Stonecat

Noturus flavus

Stonecats have an olive, yellowish, or slate-colored upper half of the body and are the only …

Sturgeon, Lake

Acipenser fulvescens

Lake sturgeon are somewhat torpedo-shaped, and the upper lobe of the caudal fin is longer than …

Sturgeon, Shovelnose

Scaphirhynchus platorinchus

The shovelnose sturgeon has a broad, flat head with an elongated shovel-like snout. There are four …

Sturgeon: Green Sturgeon

Acipenser medirostris

Sturgeon and paddlefish, best known for their black caviar, belong to the order Acipenseriformes, but at …

Sucker, White

Catostomus commersoni

White suckers have inconspicuous coloration, usually sparse shades of white, yellow, and pink. Adults have almost …

Sucker: Northern Redhorse

Maxostoma macrolepidotum

Suckers are most easily distinguished by their small mouths and large fleshy lips. They have no …

Sunfish, Longear

Lepomis megalotis

With its stocky body, the longear sunfish is not as shrunken as the bluegill or pumpkinseed, …

Sunfish, Mud

Acantharchus pomotis

It has a rectangular compressed body that is dark reddish brown on the back and light …

Sunfish, Redbreast

Lepomis auritus

The body of the redbreasted sunfish is deep and compressed, but rather elongated for a sunfish. …

Sunfish, Redear

Lepomis microlophus

Pale golden-green on top, the redear sunfish has a rounded shape and is compressed at the …

White-eye bream

Ballerus sapa

The body of the white-eye bream is compressed laterally and more elongated than that of its …