IMG_4359
2/1/13 Isla Colon, Bocas del Toro, Panama

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.[3] 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.[4
http://en.wikipedia.org/wiki/Coiba_Island_howler
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