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Myotis vivesi
''Myotis vivesi'', the fish-eating bat or fish-eating myotis,〔 is a species of bat that lives around the Gulf of California, and feeds on fish and crustaceans. It is the largest species of the genus ''Myotis'' in the Americas, and has exceptionally large feet, which it uses in hunting. It was described in 1901 by Auguste Ménégaux and is the only species in the subgenus (or genus) ''Pizonyx''.
==Description==
''Myotis vivesi'' is the largest species in the genus ''Myotis'' in the Americas,〔(【引用サイトリンク】title=Fish-eating myotis (''Myotis vivesi'') )〕 and is similar in size to the Eurasian ''Myotis myotis'' (greater mouse-eared bat).〔 The skull averages in length.〔 The second largest ''Myotis'' species in the New World, ''Myotis velifer'', has a skull long, and feet long; ''M. vivesi'' has greatly elongated hind feet, which average long.〔
In common with other fish-eating bats, ''Myotis vivesi'' has long, efficient wings, with high aspect ratio and low wing loading, and large feet with sharp claws. The uropatagium (the wing surface between the hind legs) bears a fringe of silky hairs of unknown function; the uropatagium itself is used in hunting.〔
The fur is around long,〔 and varies in colour from fawn to brown, with the base of each hair being dark grey.〔 In common with other piscivorous species of ''Myotis'', the underside of ''M. vivesi'' is pale.〔
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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