220 THE WASATCn AND BKIDGER FAXING. 



We have, then, an animal with a long thigh free from the body, a manus 

 capable of complete pronation and supination, and details of lower jaw and 

 teeth quite similar to that of the lower monkeys. The form of the humerus 

 and its relative length to the femur are quite as marked as in some of the 

 lemurs. The most marked difference is seen in the increased number of 

 teeth; but in this point it n-lates itself to tlie other Quadrumana, as the most 

 ancient types of Carnivora and Ungulates do to the more modern; e.g., 

 Hycenodon to the former and Palceosyops to the latter. 



Through the great kindness of Dr. Filhol I came into possession of a 

 mandibular ramus of the Adapls parisiensis Cuv., with nearh- entire dentition. 

 The specimen was derived from the Phosphorite beds of central France, 

 whose remarkable fauna has been so fully elucidated through the labors of 

 M. Filhol. I cannot distinguish the characters presented by this jaw from 

 those of the genus Notharctus of Leidy, although the species on which the 

 latter was based is di.stinct from A parisiensis. Until some distinctive 

 character is discovered, I use the oldest name. Adapts, for the genus. 



In the American Journal of Science and Arts for July, 1871, Prof. 0. 

 C. Marsh gave a generic name, Limnotherium, which was accompanied by 

 a description in which the characters of species and genus were not distin- 

 guished, nor were the grounds of separation from other genera previously 

 described, set forth. For these reasons I have been unable to identify the 

 genus, or use the proposed name. Some years later Professor Marsh 

 stated that the genus he thus referred to, is the one I have called Tomithe- 

 rium.* As the name proposed by Marsh was not accompanied by a distinct 

 and separate diagnosis I cannot adopt it, although in this instance its author 

 includes in his description a greater number of generic characters than 

 customary witli liim. Some of these characters are not applicable to 

 TomitheriuDi, if the language of the description is to be literally understood. 

 Thus, the e-xternal tubercles of the inferior molars are called cones, a term 

 only applicable to the inner tubercles in the present genus. Nothing is 

 said also of the third inner tubercle found in one or more of the molars, a 

 character I thiidc to be generic in this group. Professor Marsh also 

 .ascribes large canine teeth to the typical species he describes. They- are 



• American Jounial of Sciuuco ami Arte, 1875, ji. 239. 



