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Bathypterois grallator
The tripodfish or tripod spiderfish, ''Bathypterois grallator'', is a deep-sea benthic fish in the Ipnopidae family found at lower latitudes. It is now relatively well known from photographs and submersible observations, and seem to prefer to perch on the ooze using much elongated fin rays in the tail and two pelvic fins to stand, facing upstream with the pectoral fins turned forward so the outthrust projecting fin rays resemble multiple antennae, and are indeed used as tactile organs. ''B. grallator'' is hermaphroditic. At least 18 species are placed in the genus ''Bathypterois'', several of which have similar appearance and behavior to ''B. grallator''. Like a lot of deep-sea creatures, they tend to grow larger than most shallow-water fish. This benthic fish grows to be long and tall (counting their tripod-like fins).
==Characteristics==
The tripodfish has long, bony rays that stick out below its tail fin and both pectoral (chest) fins. The fish’s body is , but its fins can be more than . Most of the time, the tripodfish stands on its three fins on the bottom of the ocean, hunting for food. Even though the fins are presumably quite stiff, researchers have been successful in surprising the fish into swimming, and then the fins seem flexible. Scientists have suggested that fluids are pumped into these fins when the fish is 'standing' to make them more rigid. 〔(Tripod Fish; a fish with legs ), Australian Geographic, 20 March 2014〕
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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