Hapalemur griseus gilberti Rabarivola et al. 2007

Hapalemur griseus gilberti is larger than Hapalemur g. griseus, H. g. ranomafanensis or H. meridionalis, averaging 967 g, although the actual head-body length is smaller, about 28 cm. The tail is about 35 cm long. Males and females are similar in size. The dorsal fur is gray-brown, while the underside is gray in its anterior part and reddish in the posterior. The tail is dark gray. The face has a dark gray ring encircling the eyes, which is gray above (Rabarivola et al., 2007). The ear is shorter than that of H. griseus griseus or H. meridionalis (C. P. Groves, pers. comm.). Bamboo lemurs are easy to identify. They are smaller and have shorter muzzles than do members of the genus Eulemur (the only other sympatric diurnal lemurs with which they might be confused). They are also usually in stands of bamboo.