Fourspine stickleback
Apeltes quadracus
The fourspine stickleback possesses an elongated, fusiform body lacking scales. Typically, it exhibits four or five …
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%.
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Apeltes quadracus
The fourspine stickleback possesses an elongated, fusiform body lacking scales. Typically, it exhibits four or five …
Andinoacara rivulatus, syn. Aequidens rivulatus.
The Green Terror is a stocky fish with a prominent forehead. In adult males, a pronounced …
Pungitius platygaster
The southern ninespine stickleback can be distinguished from its European relatives by the large flaps on …
Lepomis megalotis
With its stocky body, the longear sunfish is not as shrunken as the bluegill or pumpkinseed, …
Acantharchus pomotis
It has a rectangular compressed body that is dark reddish brown on the back and light …
Lepomis auritus
The body of the redbreasted sunfish is deep and compressed, but rather elongated for a sunfish. …
Lepomis microlophus
Pale golden-green on top, the redear sunfish has a rounded shape and is compressed at the …