1867.] 



MR. ST. GEORGE MIVART ON THE LEMUUIDyE. 



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 ; de- 

 fects 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 may also be remarked that the 

 distinctness of the Galagos from the Lemurince is somewhat lessened 

 by the discovery of a genus of the latter family (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 navi- 

 culare 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 

 naviculars in C. furcifer is greater than even in Galago crassicau- 

 datus, 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 calcancum 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 mu- 

 rinus, Gray, P. Z. S. 1863, p. 143. Microcebus minor, St. Geo. Mivart, P. Z. S. 

 1864, p. 640. 



