1893.] DE. C. J. FOESYTH MAJOR ON A LEMUEOID SKUXL. 533 



ring of the orbit was complete. By the fact of the orbital and 

 temporal fossae communicating freely under the postorbital bar, it 

 is shown that we have not here to do with a member of the 

 Anthropoidea. 



Unusual for a Lemuroid is the very strong postorbital con- 

 striction of the frontals, and the globose form of the very broad 

 and elevated cranial portion. As to the first character, however, we 

 meet with it in the Tertiary Adapis (-4. pa?nsiensis, Cuv., and 

 A. magnus, Filh.), and to a much less degree in the existing 

 African Otogale and Malagasy Hapalemur '. 



Fig. 1 . 



Skull of fossil Lemuroid. Upper yiew, two-thirds nat. size. 



It is with this last genus of the subfamily Lemunnce that there 

 appear to be the most affinities. And first of all in the voluminous 

 cranial portion, the fossil being proportionally broader still than 

 Hapalemur simvs. This last has a very short facial portion ; from 

 the aspect of the side view it appears that in the Malagasy fossil 

 the anterior portion of the frontals slopes do\^n abruptly, still 

 more so than in Hapalemur. This is indicative of a small facial 

 cranium in the former too ; though it may partly be a juvenile 

 character, as the distinctness of all the sutures and the aspect of 

 the bones show the fossil to be a somewhat young specimen, in 

 which part of the. milk-dentition may have been present. 



The upper profile of Hapal. simiis, as seen in the side view, is 

 more rounded oii posteriorly, the sloping down towards the occiput 

 beginning anteriorly to a line which would unite the anterioi 



1 F. A. Jentink, "On some rare and interesting Mammals" (' Notes from the 

 Leyden Museum,' note vii. 1885, pi. i. fig. 1, Hapalemur simus, Gray). 



Peoc. Zool. Soc— 1893, No. XXXVI. 36 



