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Pirate perch
The pirate perch (''Aphredoderus sayanus'') is a freshwater fish that commonly inhabits coastal waters along the east coast of the United States and the backwater areas of the Mississippi Valley.〔Boltz,J.M., and J.R. Stauffer Jr. 1986. Branchial brooding in the pirate perch, ''Aphredoderus sayanus''(Gilliams). Copeia 1986:1030-1031.〕 This species is often found towards the bottom of clear, warm water habitats with low currents. These fish are normally solitary, carnivorous, and nocturnal. The pirate perch is known to consume live mosquito larva, amphipods, glass shrimp, meal worms, small fish, dragonfly and stonefly larvae, and earthworms.〔Parker, N.C., and B.A. Simco. 1975. Activity patterns, feeding and behavior of the Pirate Perch,''Aphredoderus sayanus''. Copeia 1975:572-574.〕
The pirate perch is related to the trout-perches, but only loosely; it is the only species in its family, Aphredoderidae. The specific name ''sayanus'' is a tribute to naturalist Thomas Say.〔 Charles C. Abbott gave the fish its common name after observing it eating only other fishes.
==Description==
This small fish (up to in total length). It is dark brown, sometimes with a darker band near the base of the tail. A unique feature of this fish is the forward placement of its cloaca, under the head, anterior to the pelvic fins. This placement allows the females to place their eggs more precisely into root masses.
Pirate perch may be the only known animal to exhibit a chemical camouflage, or crypsis that is generalized and effective among a wide number of potential prey species.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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