LEMURS. 403 



from B6duer, France, has been identified. The animals here re- 

 ferred to appear to have their nearest analogues among the African 

 lories or galagos. From certain peculiarities in the structure of 

 the cranium, -which are supposed to represent similar structures 

 seen in the Ungulata, Filhol recognises in these animals an extinct 

 zoological type, designated the Pachylemur, -which stands inter- 

 mediate bet-ween the true lemurs and the pachyderms. Necrolemur 

 antiquus and N. Ed-wardsi, on the other hand, from the phospho- 

 rites of Quercy, are considered to be true lemurs. Lemuroid forms 

 do not appear to be represented in any of the Tertiary formations 

 ne-wer than the Lo-wer Miocene or Oligocene. 



Numerous forms, referable to the same group of animals, have 

 been described from the Lo-wer Tertiaries of the "Western United 

 States (Lemuravus, Limnotherium, Microsyops, Hyopsodus, Mixo- 

 dectes, Anaptomorphus, &c.). These in part indicate a transition 

 to the hoofed animals, while others, again, are so closely linked 

 -with the Insectivora that they are barely, if at all, separable from 

 them. A reference to some of these foi-ms -will be found in the 

 section following the discussion of the Insectivora. As in Europe, 

 no lemuroid forms are kno-wn from either the American Miocene 

 or Pliocene formations. 



