Allfishes
Astyanax jordani
Anoptichthys jordani
Astyanax jordani is very close to A. mexicanus and their taxonomic affiliation is controversial. Some consider …
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 1–24 of 39
Balkhash perch
Perca schrenkii
The closest relative is the European perch (Perca fluviatilis), from which the Balkhash perch diverged approximately …
Bass, Florida Largemouth
Micropterus salmoides floridanus
No information
Bass, Guadalupe
Micropterus punctulatus
Fish have 10 to 12 dark stripes along their sides, which are less distinct in older …
Bass, Largemouth
Micropterus salmoides
Compared to other members of the sunfish family, the largemouth bass has an elongated and robust …
Bass, Redeye
Micropterus coosae
Redeye bass is distinguished by a significant amount of red coloration in its eyes. It is …
Bass, Roanoke
Ambloplites cavifrons
Roanoke bass is similar in body shape to rock bass or warmouth. It can be recognized …
Bass, Rock
Ambloplites rupestris
Although in appearance it resembles something between a bluegill and a black bass, the rock bass …
Bass, Smallmouth: Northern Smallmouth Bass, Neosho Smallmouth Bass
Micropterus dolomieui, Micropterus dolomieui dolomieui, Micropterus dolomieui velox
The smallmouth bass has a strong, slightly laterally compressed and elongated body, a protruding lower jaw, …
Bass, Spotted
Micropterus punctulatus
Spotted bass has a moderately compressed, elongated body with similar coloration and markings to those of …
Bass, Suwannee
Micropterus notius
Suwannee bass is similar in appearance to smallmouth bass and in markings to redeye bass, except …
Bass, White
Morone chrysops
White bass has a moderately deep and compressed body, which is elevated behind a small head …
Bass, Whiterock
Morone saxatilis x Morone chrysops
This fish looks like a chunkier version of striped bass, usually smaller lengths and more girth, …
Bass, Yellow
Morone mississippiensis
The body shape of the yellow bass is very similar to that of the white bass: …
Big Baikal oilfish
Comephorus baikalensis
The body of the Big Baikal oilfish is slender, naked (devoid of scales), with very thin …
Black tetra
Gymnocorymbus ternetzi
The black tetra has a flat, tall body.
Bluegill
Lepomis macrochirus
The bluegill has a considerably compressed oval or rounded body, a small mouth, and a small …
Cardinal tetra
Paracheirodon axelrodi
The Cardinal tetra has an elongated body that is slightly flattened on the sides. The females …
Crappie, Black
Pomoxis nigromaculatus
The black crappie and white crappie are similar in colour, ranging from silvery olive to bronze …
Crappie, White
Pomoxis annularus
White crappie and black crappie are the same colour, ranging from silvery olive to bronze with …
Darters: Johnny Darter
Etheostoma nigrum
There are three known genera of darters: Percina, which contains about 40 species: Etheostoma, which contains …
European perch
Perca fluviatilis
The European perch has a laterally compressed body covered with dense, small ctenoid scales. It has …
Golden pencilfish
Nannostomus beckfordi
The genus name Nannostomus comes from the Latin nannus ("small") and the Greek stoma ("mouth"), referring …
One-lined pencilfish
Nannostomus unifasciatus
The name unifasciatus comes from the Latin words uni ("one") and fasciatus ("banded"), meaning "one-banded." The …