**5.7 Tail musculature**

The tail of the rhesus monkey is nonprehensile. The muscles found on the dorsal aspect of the caudal vertebrae are the mm. interspinales caudae, the m. extensor caudae medialis, the m. extensor caudae lateralis, the m. abductor caudae medialis/internus and the m. abductor caudae lateralis/externus. The ventral muscles of the tail comprise the m. flexor caudae brevis, m. flexor caudae longus and the mm. intertransversarii caudae.
