INDRI, the largest of the existing lemurs. Belonging to the family Lemuridae (see PRIMATES) it typifies the subfamily Indrisinae, which includes the avahi and the sifakas (q.v.). From both these it is distinguished by its rudimentary tail, measuring only a couple of inches in length, whence its name of Indris brevicaudatus. It measures about 24in. in length, exclusive of the tail; its colour varies, but it is usually black, with a number of whitish patches. It inhabits the forests of a small tract on the east coast of Madagascar; shoots, flowers, and berries form its food.