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Show 1867.] MR. ST. GEORGE MIVART ON THE LEMURID/E. 973 second; defects of ossification in the palate large, one on each side; profile of anterior nares only slightly concave. Colour rusty brown. From the south-west coast of Madagascar. Native name " Tsitsihi." 4. M. minor*. First upper incisor much larger than the second ; first upper premolar quite as vertically extended as the second ; defects of ossification in the palate large, two on each side; profile of anterior nares only slightly concave. Colour grey. In addition to the foregoing, it m a y also be remarked that the distinctness of the Galagos from the Lemurinee is somewhat lessened by the discovery of a genus of the latter familv (namely Lepilemur) in which the mastoidal region of the periotic is inflated, also by the fact that the foot in Cheirogaleus furcifer has such an elongated naviculare and os calcis that the length of these bones compared to their breadth differs but little from the proportions in some Galagos. Still the proportion of the cuboides both to the os calcis and to the naviculare in C. furcifer is greater than even in Galago crassicaudatus, a species in which the naviculare is relatively less elongated than in the species before selected for comparison with Microcebus. Fig. 6. Fig. 7. Fig. 6. Tarsus of C. furcifer. 7. Tarsus of G. crassicaudatus. A. Calcaneum. B. Cuboides. C. Naviculare. The calcaneum and cuboides are together represented of the same total length, and also of the same length as the tarsi oi Microcebus and Galago formerly figured (P. Z. S. 1864, p. 624). Moreover, even in C. furcifer, the os calcis does not exceed one-third of the length of the tibia, as it appears constantly to do in * Galago minor, Gray, Ann. & Mag. N. H. 1842, x. p. 257. Lepilemur murinus, Gray, P. Z. S. 1863, p. 143. Microcebus minor, St. Geo. Mivart, P. Z S 1864, p. 640. |
