Freshwater

Salmon, Sockeye

Oncorhynchus nerka

The slimmest and most streamlined of the Pacific salmon, which are elongated and somewhat compressed from …

Sander

Sander lucioperca

There are 8-12 short, broad, brown-black horizontal stripes on the sides. The dorsal and caudal fins …

Sauger

Stizostedion canadense

The body of the sauger is slender and almost cylindrical, and the head is long and …

Scaly osman

Diptychus maculatus

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

Shad, American

Alosa sapidissima

The laterally compressed, rather deep body of the American shad is silvery white, with some amount …

Shad, Gizzard

Dorosoma cepedianum

The gizzard shad is one of two freshwater members of the herring family that has a …

Shad, Hickory

Alosa mediocris

Gray-green on the back and transitioning to silver on the sides, the hickory shad has transparent …

Shad, Threadfin

Dorosoma petenense

The threadfin shad has a silvery color and a deeply compressed body, most easily recognized by …

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. …

Slender piranha

Serrasalmus elongatus

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

Smallscale archerfish

Toxotes microlepis

The smallscale archerfish has a pointed snout and large eyes. Their back is relatively flat and …

Smelt, Rainbow

Osmerus mordax

A slender, silvery fish with a pale green or olive green back. When fresh, the sides …

Snook, Common

Centropomus undecimalis

A silvery fish with a yellow-green or olive hue, it has a streamlined and slender body …

Spotted lungfish

Protopterus dolloi

The spotted lungfish has a body very similar to that of an eel. It is elongated …

Squawfish, Northern

Ptychocheilus oregonensis

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

Striped headstander

Anostomus anostomus

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

Striped snakehead

It is a bony fish with an endoskeletal thorax. Body subcylindrical, head depressed, caudal fin rounded. …

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, Green

Lepomis cyanellus

Latin name Lepomis cyanellus Other names Green perch, black perch, pond perch, creek perch, sand bass, …

Sunfish, Longear

Lepomis megalotis

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