LEMURS 51 lemurs have either no upper front incisors at all or only rudimentary ones; the mouse-lemurs are hardly larger than rats, and are remarkable for re- maining dormant during the hottest period of the year. The brown mouse-lemur (of which we give the portrait) was brought to England by Mr. Shaw, the well-known missionary. The dwarf mouse-lemur is the animal Buffon described as the rat of Mada- gascar ; it builds nests of twigs as if it were a rook, and lines them with hair. The galagos are found on the African mainland; the large size of their ears sufficiently distinguishes them ; they are found practically all over Africa, and have been known for the last hundred years. The two genera Wycticebus and Lords are Asiatic; Perodicticus, which includes the potto and awantibo, is exclusively African. In earlier times the group hada much wider distribution, fossil representatives having been found not only in England and France but in North America. There are two other families of the lemuroids besides the Lemuride. These are the Zarsizde and the Chiro- myid@, each represented by a single genus and a single species. The Tarsier derives its name from the frog-like elongation of its ankle bones. In his Crudse of the Marchesa, Dr. Guillemard says of one obtained at Celebes :—‘ The most interesting addition to our mena- gerie was a tiny lemuroid animal, brought to us by a native, by whom it was said to have been caught upon the mainland. These little creatures, which are of arboreal and nocturnal habits, are about the size of a small rat, and are covered with a remarkably thick fur, D2