179 

 PISCES. 



LITERATURE OF THE SUBJECT. 



1856. Lcidy, Proceedings Academy Philadelphia, p. 73. Lcpidotus- from 



Judith River. 



Leidy, /. c, p. 256. Two species of Enchodus and Cladocydus de- 

 scribed. 



Leidy, /. c, p. 312. Mrjlognathus priscus, from the Fort Union epoch, 

 described. 



1857. Leidy, I. c, p. 167. Phasganodus dims described. 



1858. MarcoLi, North American Geology, p. 33. Ftychodus lohippleyi de- 



scribed. 

 1868. Leidy, Proceedings Academy, Philadelphia, p. 207. Ftychodus occi- 

 dentalis described. 



1870. Leidy, /. c, p. 12. Xiphactinus audax described. 



Cope, Proceedings American Philosophical Society, p. 529. Family 

 of Saurodontidcs established and defined, and one new genus and 

 four new species described. 



Cope, Hayden's Report on Geological Survey of Wyoming, p. 424. 

 Apsopelix sauriformis described. 



1871. Cope, Proceedings American Philosophical Society, p. 170. Genera 



Portheus and Anogmius described. 



1872. Cope, /. c, p. 327. Descriptions of twenty species and nine genera; 



characters of latter and of families Saurodontidcc and Strato- 

 dontklce extended. 

 Cope, Proceedings Academy, Philadelphia, 280. Erisichthe nitida 

 described. 



1873. Leidy, Vertebrate Fauna of Western Territories, in Hayden's Report 



of United States Geological Survey, vol. I, p. 288. Twelve known 

 species redescribed and figured. 

 Cope, Proceedings Academy Philadelphia, p. 337. Portheus ieslrio and 

 P. gladius described, and genus Daptinus defined. 



1874. (April.) Cope, in Hayden's Bulletin of United States Geological Survey 



of the Territories, p. 39. Synopsis of all tlie species ; ten added ; 

 genus Empo more fully defined. 



