204 
CORYPnODOK 
restricted to any particular class of food. They were doubtless, to a larg-e 
extent, like the Hogs, omnivorous. 
History. —The first piece recognized as belonging to a distinct genus, 
under the name of Corypliodon^ was described by Professor Owen in 1846. 
This was a fragment of the mandible, supporting the last inferior molar. In 
describing it, Owen noticed the peculiar form of the posterior part of the 
ramus. He also refen-ed to some superior molars, one of which is figured by 
Cuvier (Ossemens Fossiles, pi. 77, fig. 6) as probably belonging to the same 
genus. These were alluded to by the French anatomist as the Lopliiodon de 
Soissons and the Lopliiodon de Lyonnais. Owen named the species observed 
by him Goryphodon eoccenus, and it is believed that the teeth described by 
Cuvier belong to another species, to which DeBlainville gave the name 
Goryphodon anthracoideus. Little, however, was known of this form until ten 
years later, when Professor Hubert, of Paris, obtained some additional 
material from Meudon near Paris, and other localities. In the Annales des 
Sciences Naturelles for 1856, he gave a full account of the characters of 
the dentition, and described the femur. He explained correctly the homol¬ 
ogies of the dental structure, and added a species, C. owenii, which is of 
smaller size than the C. eoccenus. 
The first American species was made known by the writer in Feb¬ 
ruary, 1872, under the name of Bathmodon radians, and the description was 
at that time confined to the sujDerior molars, the femur, and the humerus. 
In February, 1873, in “The Short-footed Ungulata of the Eocene of 
Wyoming”, I described the characters of the scapula and astragalus and 
its connections, which furnished reasons for removing the genus from the 
Perissodactyla and placing it in the Proboscidia, under a subordinal division, 
which was named the Pantodonta. The same course was pursued in 
the Annual Report of the United States Geological Survey of the Terri¬ 
tories for 1872 (1873), where a second American species, B. latipes, was 
added. The next additions to our knowledge of the osteology of Goryphodon 
are due to the exploration of the Eocene beds of Noav Mexico, conducted 
by the writer, in 1874, in connection with the United States Geogi’aphical 
Surveys West of the 100th Meridian. On November 28, 1874, in 
extracts from the Report of the Chief of Engineers, published in advance, 
