116 SAURJA. 



Crocodiles of Uncertain Reference. 



a. Page 16, Vertebrae, from Jobstown, Burlington Co., N. J. PI. II, Fig. 6. 



6. Pages 16, 11, A cervical vertebra, from St. George's, New Castle Co., Del. PI. II, Fig. 7. 



c. Page 17, Fragment of a left dental bone, from Monmouth Co., N J. PI. IV, Figs. 22, 23. 



d. Page 17, Fragment of a small Gavial skull, from Burlington County, N. J. PI. II, Fig. 8. 



e. Page 17, Four teeth, from Blackwoodtown, Camden Co., N. J. PI. I, Figs. 7, 8, 9. 

 / Page 17, Two teeth, from North Carolina. PI. Ill, Figs. 22, 23. 



g. Page 18, A dermal plate, fragment of a jaw and a tooth, from Burlington Co., N. J. 



POLYPTYCHODON. Owen. 



5. Polyptyehodon ? rugosus. 



Folyptychodon rugosus. Emmons: North Carol. Geol. Surv. 1858, 219, Fig. 38. 

 Page 18, A tooth, from Elizabethtown, Bladen Co., N. C. 



HYPOSAURUS. Owen. 



6. Hyposaurus Rogersii. 



Ihjposaurus Bogersii. Owen : Jour. Geol. Soc. Lond. 1849, V, 380, PI. XI, Figs. 7-10. 

 Ilolcodus aciUidens. In part, of Gibbes : Mem. on Mosasaurus, &c.. Smiths. Contrib. 

 1850, II, 9, PI. Ill, Fig. 13. 

 Pages 18-21, PI. Ill, Figs. 4, 16-21 ; PI. IV, Figs. 1-12. 



DISCOSAURUS. Leidy. 



7. Discosaurus vetustus. 



Discosaurus vetu.'<lus. Leidy : Pr. Ac. Nat. Sc. Phil. 1851, 326. 

 Pages 22-25, PL IV, Figs. 13-18; PI. V, Figs. 1-12. 



CIMOLIASAIJRUS. Leidy. 



8. Cimoliasaurus magnus. 



Gimoliasaurus magnus. Leidy: Pr. Ac. Nat. Sc. Phil. 1851, 325; 1854, 12, PL II, 

 Figs. 4-6. 

 Fdges 25-29, PL V, 13-19; PL VI, Fig.s. 1-18 



PIRATOSAURUS. Leidy. 



9. Piratosaurus plicatus. 

 es 29, 30, PL XIX, Fig. 8. 



MOSASAURUS. Conybeare. 



10. Mosasaurus Mitchelli. 



Saurian resembling ihe Reptile of Maeslrickt. Mitchell : Obs. Geo!. North America, 



1818, 384, 385, PL VIII, Fig. 4. 

 Saurian resembling the MaestricU Monitor. Harlan: Jour. Ac. Nat. Sc. Phil. 1825, 



IV, 235, PL XIV, Figs. 2-4 ; Med. Phys. Res. 1835, 384. 



