| OCR Text |
Show 500 MR. ST. G. MIVART ON THE LEMURS. [May 20, fourth cervical vertebrae, dorsal, and nine lumbar vertebrae ; dorsal region of spine short; no intermedium to the carpus ; length of os calcis less than one fourth that of tibia ; naviculare not nearly twice the length of cuboid. LEMUR. 1.1, C.i Pm. I M. -J, =4=34. Tail long ; muzzle elongated ; upper incisors subequal, both pairs anterior to the canines ; first upper premolar shorter than the second ; all upper premolars with only one large external cusp; first upper molar considerably exceeding the third premolar in size ; upper canines very large ; sphenoidal fissure and foramen rotundum normally distinct; angle of mandible not produced downwards ; mastoidal region of periotic not inflated; dorsal and lumbar vertebrae together not more than twenty ; tarsus short; os calcis less than one-fourth the length of tibia; naviculare little more than half the length of the cuboid. Fig. 13. Dorsal aspect of left tarsus of Lemur. (Letters as before.) HAPALEMUR. 1.1, C.'{, Pm. |, ILf =4=34. Tail long; muzzle short; upper incisors unequal, the posterior one on each side being quite internal to the canine, which is small. First premolar above longer than the second, but the dental series on each side very nearly equal; third premolar above shaped like the upper molars, which it exceeds in size; a paroccipital process; a large malar foramen; angle of mandible exceedingly large and |
