White-collared Brown Lemur
Eulemur fulvus albocollaris (Rumpler, 1975)
CR B1+2abc

Seven subspecies of brown lemur (Eulemur fulvus) are found in the forests of Madagascar’s periphery. All are diurnal and many can be readily seen in the wild. The taxonomic status of this particular brown lemur has been debated in the past, and some still suggest that it should be considered a full species based upon its unique chromosome number (2N=48) within the Eulemur fulvus group. It is very similar in coloration to the collared brown lemur (Eulemur fulvus collaris), except that male E. f. albocollaris tend to have white, rather than rufous, beards. The white-collared brown lemur also has the most restricted range of any member of the brown lemur group. Its known distribution includes the thin strip of east coast forest from north of the Manampatrana River to the Mananara River. No population figures are available, but a reasonable estimate would be about 1,000. The protected areas within its range are the Manombo Special Reserve, which is relatively small in size and is apparently not permanently inhabited by brown lemur groups, and the Andringitra Nature Reserve, where it may hybridize with other subspecies of Eulemur fulvus.