CHAP TE RSE. 
DESCRIPTION OF UNGULATA IMPARIDIGATATA. 
Fam. 1.—So.uirepia. 
Gen. ANCHE THEREON, Meyer. 
Unpver the name of Pulaeotherium aurelianense, M. De Blainville has included 
also the Palweotherium monspessulanum, and the Pulaeotherium equinum, Wartet, 
seu hippoides, De Blainville.t These, according to the view of M. De Christol, 
(Comptes Rendus, vol. xxiv., p. 374,) do not belong to the genus Palaeotherium, 
but to a soliped, to which the name of Hipparitheriwm is given. In regard to this 
animal, he observes, “Ses os des membres ressemblent & un tel degré & ceux de 
VP Ane et du Cheval, qu’on en trouve une description trés étendue et trés-rigoureuse 
dans les traités d’anatomie vétérinaire, et qu’on peut suivre sur ces os de pretendus 
Palaeotheriums les descriptions myologiques des vétérinaires aussi complétement et 
aussi stirement que sur une squelette d’ane ou de cheval.” 
H. von Meyer had already placed this species in a new genus under the name of 
Anchitherium Ezquerrae,’ which generic name is adopted by M. Pomel, in his classi- 
fication of the Pulaeotheria, as a subgenus.” 
As a result of these investigations the specific name of the animal is Anchithe- 
rium aurelianense, Gervais. 
A second species, the Anchitherium Dumasii,' has been indicated by Gervais from 
the eocene formations of France. 
Anchitherium Bairdii, Ley. 
(Pirate X., Figs. 14-21; XI.) 
Palacotherium Bairdii, Leidy: Proce. Acad. Nat. Sci., 1850, v. 121. 
Anchitherium Bairdii, Leidy: Owen’s Rep. of a Geol. Surv. of Wisc., ete., 572. 
Among the fossil remains collected by Mr. Alexander Culbertson were the 
greater portion of a skull and fragments of jaws with teeth, of a species of Anchi- 
therium. The teeth of this so closely resemble those represented in De Blainville’s 
Osteographie, under the name of Palaeotherium hippoides, that they might readily 
1 Osteegraphie: Palaeotherium, 75. * Jahrbuch fiir Mineralogie, 1844, 298. 
® Bul. Soc. Geol. de France, vii. 219. * Comptes Rendus, xix., 581, 572. 
