Allfishes
Sander
Sander lucioperca
There are 8-12 short, broad, brown-black horizontal stripes on the sides. The dorsal and caudal fins …
Freshwater
Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.
Showing 97–120 of 136
Sauger
Stizostedion canadense
The body of the sauger is slender and almost cylindrical, and the head is long and …
Saugeye
Stizostedion vitreum x S. canadense
The saugeye's body is more similar to that of a walleye than a sauger, although the …
Shiner, Common
Luxilus cornutus
The common shiner is silvery with a deeply compressed body, a dark dorsal stripe, large eyes, …
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. …
Siberian sturgeon
Huso baerii
The Siberian sturgeon has a spindle-shaped body with several longitudinal rows of bumps. Its short, triangular …
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 …
Snook: Fat Snook, Swordspine Snook, Tarpon Snook
Centropomus parallelus, Centropomus ensiferus, Centropomus pectinatus
The fat snook has a deeper body than other snook, although it is not severely compressed. …
Speckled peacock bass
Cichla temensis
Speckled peacock bass has dark spots on the operculum and three distinctive vertical black stripes on …
Splake
Salvelinus namaycush x Salvelinus fontinalis
Splake are difficult to identify externally as they resemble both parents. The body shape is intermediate …
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 …
Steelhead
Oncorhynchus mykiss
Steelhead are usually slender and streamlined. The dorsal coloration is mostly blue-green with an olive hue, …
Striped snakehead
It is a bony fish with an endoskeletal thorax. Body subcylindrical, head depressed, caudal fin rounded. …
Sturgeon, Atlantic
Acipenser oxyrinchus
The Atlantic sturgeon is dark brown or olive green with a white belly. The head is …
Sturgeon, White
Acipenser transmontanus
The adult white sturgeon has a moderately blunt snout, spines closer to the tip of the …
Taranets char
Salvelinus taranetzi
This species is very similar to the Arctic char. Taranets char have a low, flattened body …
Tarpon
Megalops atlanticus
The body of the tarpon is elongated and contracted, covered with large major scales and a …
Three-spined stickleback
Gasterosteus aculeatus
The Three-spined Stickleback has an elongated body that is compressed from the sides. The tail stalk …
Trout-Perch
Percopsis omiscomaycus
The trout-perch gets its name from its superficial resemblance to trout, as it has a fat …