Original description:
Hapalemur griseus occidentalis Rumpler, 1975, Lemur Biology. Plenum Press, New York: 25-40.
Common names:
Western Gentle Lemur [English]
Western Bamboo Lemur [English]
Western Lesser Bamboo Lemur [English]
Hapalémur Occidental [French]
Westlicher Grauer Halbmaki [German]
Westelijke Grijze Halfmaki [Dutch]
Bekola [Malagasy] (Antsalova, allusion to neck gland)
Kofi [Malagasy] (Antsalova, onomatopoetic)
Ankomba Valiha [Malagasy]
Bokombolo [Malagasy]