274 



PORTIIEUS LESTRIO, Copo. I'lalt'S XLII, figs. 1-.'!; XLVII, figs. 1-5. 

 Proceedings of the Academy of Natural Sciences, Pliiladclpliia, 187:?, \t. 337. 



Niobrara Cretaceous of Kansas, near the Solomon Iiiver; abundant. 



PORTHEUS MUDGEI, Cope. 



Hayden's Bulletin of the United States Geological Survey of the Teiiitories, No. 2, 1S74, y. 40. 



Niobrara group of Kansas. 



PORTIIEUS ARCUATUS, Cope. Plate XLYII, fig. 7-0. 

 Sujpra, r. 204. 



Niobrara group of Kansas. 

 PoRTHEUS GLADIUS, Cope. Plate LII, fig. 3. 



Prooeediugs of tlie Academy of Natural .Sciences, Pliiladclpliia, 1873, 338. 



Represented by a huge pectoral spine, which may l)el(mg to one of the 

 preceding species. 



Niobrara Cretaceous of the Solomon River, Kansas. 



ICHTHYODECTES, Cope. 



Proceedings of the American Philosophical Society, 1870, Novcinlicr; J. c, 1872, p. 338. 



IcHTiiYODECTES ANAIDES, Cope. Plates XLIV, figs. 14, lo ; XLV, figs. 1-S. 

 L. c, 1872, 339. 



Niobrara Cretaceous of the Smoky Hill. 



ICHTIIYODECTES CTENODON, Cope. Plate XLVI, figs. l-i. 

 L. c, 1870, November ; 1. c, 1872, 340. 



Niobrara Cretaceous of the Smoky Hill. 



IcnXHYODECTES HAMATUS, Copc. Plate XLYI, fig. 5. 

 X. c, 1872, 340. 



Niobrara Cretaceous of the Smoky Hill. 



IcHTHYODECTES PROGNATHUS, Cope. Plate XLVI, figs. G-IO, 



L. c, 1872, 3il.—SauroccpIi(ihis itrognathiis, Proceed 

 1870, November. 



Cretaceous (Niobrara) of the Smoky Hi 



L. c, 1872, 341. — Sauroccphtihis iirognallnis, Proceedings of the American Pliildsdiiliicil Siicicty, 

 1870, November. 



