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The silver arowana (''Osteoglossum bicirrhosum''), sometimes spelled ''arawana'', is a freshwater bony fish of the family Osteoglossidae, commonly kept in aquaria. The generic name ''Osteoglossum'' means "bone-tongued" and the specific name ''bicirrhosum'' means "two barbels" (from the Greek language). ==Description== This South American species is found in the Amazon Basin and in the Rupununi and Oyapock Rivers, as well as in still waters in the Guianas. This fish has relatively large scales, a long body, and a tapered tail, with the dorsal and anal fins extending all the way to the small caudal fin, with which they are nearly fused. It can grow to a maximum size of . Unlike the black arowana, the silver arowana has the same coloring throughout its lifespan. The species is also called 'monkey fish' because of its ability to jump out of the water and capture its prey. It usually swims near the water surface waiting for potential prey. Although specimens have been found with the remains of birds, bats, and snakes in their stomachs, its main diet consists of crustaceans, insects, smaller fishes, and other animals that float on the water surface, for which its drawbridge-like mouth is exclusively adapted for feeding. Arowanas are sometimes called 'dragon fish' by aquarists because their shiny, armor-like scales and double barbels are reminiscent of descriptions of dragons in Asian folklore. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「silver arowana」の詳細全文を読む スポンサード リンク
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