Percopsiformes

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Percopsiformes
Temporal range: Eocene–Recent
[1]
Amblyopsis spelaea.jpg
Amblyopsis spelaeus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Percopsiformes
L. S. Berg, 1940
Families

Amblyopsidae (cavefishes)
Aphredoderidae (pirate perch)
Percopsidae (trout-perches)

The Percopsiformes are a small order of ray-finned fishes, comprising the trout-perch and its allies. It contains just 9 species, grouped into three families.[2]

They are generally small fish, ranging from 5 to 20 cm (2.0 to 7.9 in) in adult body length. They inhabit freshwater habitats in North America. They are grouped together because of technical characteristics of their internal anatomy, and the different species may appear quite different externally.[1]

References[edit]

  1. ^ a b Cohen, Daniel M. (1998). Paxton, J.R. & Eschmeyer, W.N., ed. Encyclopedia of Fishes. San Diego: Academic Press. p. 129. ISBN 0-12-547665-5. 
  2. ^ Froese, Rainer, and Daniel Pauly, eds. (2008). "Amblyopsiformes" in FishBase. December 2008 version.