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The Coiba Island howler (''Alouatta coibensis'') is a species of howler monkey, a type of New World monkey, endemic to Panama. Although the Coiba Island howler is generally recognized as a separate species, mitochondrial DNA testing is inconclusive as to whether it is actually a subspecies of the mantled howler. The reason for treating it as a separate species is the dermal ridges of its hands and feet differ from those of the mantled howler. ''A. c. coibensis'' is smaller than other Central American howler monkeys and has duller pelage than the Azuero howler, ''Alouatta coibensis trabeata''. ==Subspecies== The two subspecies of this howler are:〔 *''Alouatta coibensis coibensis'' Thomas, 1902, found on Coiba Island and Jicaron, off the Pacific coast of Panama *Azuero howler, ''A. c. trabeata'' Lawrence, 1933, endemic to the Azuero Peninsula in Panama. 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「Coiba Island howler」の詳細全文を読む スポンサード リンク
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