273 



PERCESOCES. 



SYLL^EMUS, Cope. 



Report on the Fishes collected hy the United States Geographical and Geological Survey of the One 



Hundredth Meridian, 1S75. MSS. 



Syll2emtjs latifrons, Cope. 



X. c. supra, p. 180. 



Cretaceous No. 3 or 4, of Colorado. 



PELECORAPIS, Cope. 



Hayden's Bulletin of the United States Geological Survey of the Territories, 1874, No. 2, p. 39. 



Pelecorapis varius, Cope, /. c. 



Benton group, near Sibley, Kansas. 



ACTINOCHIBL 

 PELECOPTERUS, Cope. 



Supra, p. 244 A. 



Pelecopterus peeniciosus, Cope, Plate XLVIII, fig. 2 ; LII, fig. 2. 



Supra, p. 244 D. 



Ichthyodectcs perniciosus, Cope, Bulletin of the United States Geological Survey of the Ter- 

 ritories, No. 2, 1874, p. 41; ditto, infra, p. 275 (lapsu calami). 



Niobrara beds of the Solomon. 

 Pelecopterus chirurgus, Cope. Plate XLVIII, fig. l ; LIV, fig. 8. 



Supra, p. 244 E. • 



Niobrara beds of the Solomon. 

 Pelecopterus gladius, Cope. Piute LII, fig. 3; XLIV, fig. 12. 



Supra, p. 244 E. 



Portheus gladius, Cope, Bulletin of the United States Geological Survey, No. 2, 1874, p. 40; 

 Proceedings of the Academy of Philadelphia, 1873, p. 338; infra, p. 274 (lapsu calami). 



Niobrara beds of the Smoky Hill and Solomon Rivers. 



ISOSPONDYLI. 

 PORTHEUS, Cope. 



Proceedings of the American Philosophical Society, 1871, p. 173; I. c^-1872, p. 333. 



Portheus molossus, Cope. 



Proceedings of the American Philosophical Society, 1871, p. 173 ; 1872, p. 333. 



Common in the Niobrara Cretaceous of the Smoky Hill region, Kansas. 

 Portheus thaumas, Cope. 



Sauroceplialus thaumas, Cope, Proceedings of the American Philosophical Society, 1870, 

 November ; I. c, 1872, p. 335. 



Same locality as the last. 



