250 

 Pteeodactylus velox, Marsh. 



L. c, April, 1872. 



Niobrara Cretaceous of Kansas. 



CROCODILIA. 



■ HYPOSAURUS, Owen. 



Journal of the Geological Society of London, V, 383. 



Hyposaurus vebbii, Cope. Plate IX, fig. 8. 



Proceedings of the American Philosophical Society, 1872, p. 310. 



Benton, or No 2, Cretaceous of Kansas. 

 Hyposaurus rogersii, Owen. 



Journal of tho Geological Society of Loudon, V, 383, plate; Leidy, Cretaceous Reptiles of 

 North America, 1865, p. 18, Table III, tigs. 4-21 ; Cope, Extinct Batrachia and Reptilia 

 of North America, 1869, p. 80. 



Greensand, No. 5, of New Jersey. 



THORACOSAURUS, Leidy. 



Cretaceous Reptiles of North America, 1865, p. 5. 



Thoracosaurus neoc/Esariensis, DeKay. 



Gavial DeKay, Annals of Lyceum of New York, Table III, rigs. 7-10. — Garialis uebcasariensis, 

 DeKay, Zoology of New York, 1842, part III, 1844, p. 82. — Crocodihts 8. Garialis clavi- 

 rottrit, Morton, Proceedings of the Academy of Natural Sciences, 1844, 82 ; Giebel 

 Fauna dcr Yorwelt, 18 17. 122. — Crocodihts basiftssus, Owen, Journal of the Geological 

 Society of London, 1849, p. 381, Table X, ligs. 1-2. — Crocodihts dekaiji, Leidy, Journal 

 of the Academy of Natural Sciences, Philadelphia, II, p. 135. — Thoracosaurus grandis, 

 Leidy, Proceedings of the Academy of Natural Sciences, Philadelphia, 1852, p. 35. — 

 SphcHOsauriix. Agassiz, /. c, 1849, ICO (name only). 



Greensand and limestone of No. "», in Now Jersey. 



HOLOPS, Cope. 



Extinct Batrachia and Reptilia, etc., of North America, lf-69, p. 67. 



HOLOPS PNEUMATICUS, Cope. 



Proceedings of the Academy of Philadelphia, 1872, p. 11. 



This gavial, as large as the T. neoccesariensis, is represented, so far as I 

 know, by but one specimen ; but this fortunately embraces a large proportion 



