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 1–19 of 19
Black tetra
Gymnocorymbus ternetzi
The black tetra has a flat, tall body.
Cardinal tetra
Paracheirodon axelrodi
The Cardinal tetra has an elongated body that is slightly flattened on the sides. The females …
Chosa herring
Clupea pallasi suworowi
The abdominal keel scales of the Chosa herring are developed only behind the base of the …
Golden pencilfish
Nannostomus beckfordi
The genus name Nannostomus comes from the Latin nannus ("small") and the Greek stoma ("mouth"), referring …
Herring
Clupea
Body compressed from the sides, with jagged edge of abdomen. Scales moderate or large, rarely small. …
Herring, Atlantic
Clupea harengus
The body is not high (its height is about 1/5 of body length). Head is comparatively …
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 …
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 …
Shad, Alabama
Alosa alabamae
It has a large terminal mouth with upper and lower jaws of almost equal length. The …
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 …
Slender piranha
Serrasalmus elongatus
The most important feature of the slender piranha, which is reflected in its name, is its …
Striped headstander
Anostomus anostomus
The body of the striped headstander is elongated, slightly compressed laterally, resembling a torpedo. The head …
Three-lined pencilfish
Nannostomus trifasciatus
The genus name Nannostomus comes from the Greek nannos ("dwarf") and the Latin stomus ("mouth"), referring …