ORDER PRIMATES. 



1467 



Necrolemur from the French Phosphorites, the dental formula of 



M. — , or the same as 



which Dr Schlosser gives as I. 



C. -, Pm. 3 



1 



1 1 3 3 



in the existing Tarszus, although he suggests that in some cases 

 there may have been four lower premolars. The skull resembles 

 that of the living genus Galago of Africa, both in size and structure, 

 as is especially shown by the prominent auditory bullae. The upper 

 molars are also like those of one species of that genus, although the 



Fig. 1350.— Cranium of Anafitoi>iorf>htts homunculus ; from the Wasatch Eocene of North 

 America, a, From the left side ; b, Oblique view ; c, From above ; d, From below (enlarged). 

 (After Cope.) 



last premolar is distinguished by having only one outer column, and 

 is accordingly simpler than the true molars. In this respect Necro- 

 lemur agrees with Chirogaleus of Madagascar. 



Plesiadapis, from the Lower Eocene of Rheims, may be provision- 

 ally placed here. A?iaptomorphus, from the Middle Eocene of 

 North America, of which the cranium and mandible are shown in 

 the accompanying figures, seems to be allied to Necrolemur, but has 

 two lower incisors, and the upper premolars are unusually complex 

 and approach those of the Anthropoidea. The upper molars are 



tritubercular ; and Professor Cope gives the dental formula as/-, 



2 



1 2 x 



C. -, Pm. — , M. -. Cynodontomys is an imperfectly known genus 

 1 2 3 



from the Wasatch Eocene ; and Mixodectes an older one from the 

 Puerco or Lower Eocene of North America. Dr Schlosser also re- 

 gards the American Eocene genus Omomys as allied to Necrolemur, 



