Any of several long-tailed terrestrial monkeys of the genus Erythrocebus of western Africa that are closely related to the guenons, especially E. patas, which has reddish fur and a black nose.

• 赤猴西部非洲的一种赤猴属的长尾陆栖猴子，与长尾猴属动物十分相近，尤其是赤猴，具有红色的毛和黑色的鼻子