| OCR Text |
Show 1867.] MR. ST. GEORGE MIVART ON THE LEMURIDiE. 963 being somewhat less so, as is the case in M. pusillus. This shortness of the first premolar is not the effect of immaturity, as I before thought might be the case, as the typical specimen of M. pusillus is fully adult. The predominance in size, on the other hand, of the first over the second upper incisor is greater in M. myoxinus than in pusillus. Finally, the tarsus, which, in M. pusillus, is only as 11 "7 to the length from the snout to the root of the tail, taken at 100, is in M. myoxinus 14*6 to the same dimensions similarly estimated. Thus in the greater inequality of size between the two upper incisors on each side, and in the greater equality of length of the first two upper premolars, M. myoxinus is intermediate between M. pusillus and C. milii; but these differences are slight in comparison to the points of resemblance between it and M. pusillus, its tarsal structure (as has been said) agreeing, in size and the proportions of its parts to one another, altogether with that of the last-named animal. With regard to Cheirogaleus furcifer, part of the skeleton of which, as I before said, has been so kindly transmitted to me by M . Alphonse Milne-Edwards, I find that its skull and dentition agree (as far as the worn condition of the grinders permits comparison) with the imperfect specimen in the British Museum as to the characters enumerated in m y former paper*, except that there is a small malar Fig. 1. foramen on each side, that the angle of the mandible is decidedly produced downwards as well as backwards, and that there is no trace of a fifth cusp to the last inferior molar. I find also conspicuous carotid foramina placed, as in C. milii, near * P. Z. S. 1864, p. 622. |
