Freshwater

Ide

Leuciscus idus

The body of the ide is thick. It is distinguished by the following features: a shortened …

Malabar danio

Devario malabaricus

The Malabar danio has a fusiform (spindle-shaped) body and is a larger, more robust relative of …

Minnow, Fathead

Pimephales promelas

The fathead minnow has a puny, deep, compressed body with a short, flattened head. The snout …

Minnow: Golden Shiner

Notemigonus crysoleucas

Minnows are characterized by a single dorsal fin, pelvic fins, soft fin rays, cycloid scales, and …

Naked osman

Gymnodiptychus dybowskii

The naked osman has an elongated, fusiform (spindle-shaped) body that is slightly compressed laterally. The body …

One-lined pencilfish

Nannostomus unifasciatus

The name unifasciatus comes from the Latin words uni ("one") and fasciatus ("banded"), meaning "one-banded." The …

Piraya

Pygocentrus piraya

The piraya has a laterally compressed, roughly circular profile typical of piranhas. A distinctive feature is …

Predatory carp

Chanodichthys erythropterus

The predatory carp has a body structure typical of an active pelagic predator — streamlined, elongated, …

Pyrrhulina filamentosa

Pyrrhulina filamentosa

Pyrrhulina filamentosa has an elongated body with a large caudal fin, the upper lobe of which …

Red-bellied piranha

Pygocentrus nattereri

The red-bellied piranha has a short, deep body shape. Its cross-section is compressed.All piranhas have large …

Rudd

Scardinius erythrophthalmus

The rudd has a cylindrical shape and a deep body. It has a moderately forked tail …

Russian bitterling

Acheilognathus asmussii

The Russian bitterling has a very characteristic appearance that distinguishes it from other members of the …

Scaly osman

Diptychus maculatus

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

Shiner, Common

Luxilus cornutus

The common shiner is silvery with a deeply compressed body, a dark dorsal stripe, large eyes, …

Shiner, Emerald

Notropis atherinoides

The Emerald Shiner is a slender, elongated fish with a pale silvery slate body that is …

Shiner, Golden

Notemigonus crysoleucas

The golden shiner has a deep, compressed body that is usually a golden yellow or brassy …

Shiner, Striped

Luxilus chrysocephalus

The striped shiner is a silvery, laterally compressed minnow with large eyes and a terminal mouth. …

Silver carp

Hypophthalmichthys molitrix

The body of the silver carp is quite deep, moderately elongated, and covered with small, easily …

Slender piranha

Serrasalmus elongatus

The most important feature of the slender piranha, which is reflected in its name, is its …

Spined loach

Cobitis taenia

The spined loach has a long, slender body, slightly compressed laterally, which helps it move easily …

Squawfish, Northern

Ptychocheilus oregonensis

The mouth of the northern squawfish is terminal and large, extending backward beyond the anterior margin …

Stoneroller, Central

Campostoma anomalum

The Central Stoneroller has a thick and poorly compressed torpedo-shaped body of dull gray color with …

Striped headstander

Anostomus anostomus

The body of the striped headstander is elongated, slightly compressed laterally, resembling a torpedo. The head …

Sucker, White

Catostomus commersoni

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