Presbytis femoralis (Martin, 1838) . Mag. Nat. Hist. [Charlesworth's], 2:436.

TYPE LOCALITY: Singapore .

DISTRIBUTION: Malay Penninsula, Singapore, NE Sumatra, Natuna Isl (Indonesia), Sarawak ( Borneo, Malaysia).

STATUS: CITES - Appendix II.

SYNONYMS: arwasca, australis, cuna, catemana, chrysomelas, cruciger, dilecta, keatii, natunae, neglectus, nigrimanis, nubigena, paenulata, percura, rhionis, robinsoni, siamensis .

COMMENTS: Separated from P. melalophos by Wilson and Wilson (1977:217-222); recognized as a species by Aimi et al. (1986).