298 



FOSSIL VFRTKBRATA OF NORTH AMERICA. 



[BULL. 179. 



Petrodus occidentalis Newb. and 

 Worth. 



and Worthen 1866 A, p. 70, pi. iv, figs. 

 15-16a. 



Jaekel, 0. 1899 A, p. 283. 

 Keyes, 0. R. 1888 A, p. 243. 

 Kindle, E. M. 1898 A, p. 485. 

 Lesley, J. P. 1889 A, p. 628, figures. 

 Newberry and Worthen 1870 A, p. 346. 



Woodward, A. S. 1889 D, p. 246. 



Coal-measures; Illinois, Indiana. 



Petrodus ? pustulosus Newb. and 



Worth. 

 Newberry and Worthen 1870 A, p. 369, pi. ii, figs. 



5, 5a; pi. iii, fig. 6. 

 Newberry, J. S. 1889 A, p. 178. 

 Woodward, A. S. 1889 D, p. 247. 



SubrarboniferouN (Burlington); Iowa. 



STEMMATIAS Hay. Type Stemmrttodns cheirifortnix St. J. and Worth. 



Hay, O. P. 1899 E, p. 784. 



Davis, J. W. 1892 A, pp. 721, 726. (Syii. of Plonra- 

 canthus.) 



Jaekel, O. 1899 A, p. 278. (Stemmatodus, syn. of 

 Polyrhizodus.) 



Lesley, J. P. 1890 A, p. 1048. 



St. John and Worthen 1875 A, p. 328. (Stemmato- 

 dus; preoccupied by Heckel. ) 



Ward, J. 1890 A, p. 153. (Stemmatodus.) 



Wellburn, E. D. 1899, Proc. Yorksh. Geol. Polytech. 

 Soe., xiii, p. 425. (Stemmatodus.) 



Woodward, A. S. 1889 D, pp. 245, 247. '(Stemmato- 

 dus.) 



Stemmatias bicristatus (St. J. and 



Worth.). 

 St. John and Worthen 1875 A, p. 331, pi. viii, figs. 



32, 33, 35. (Stemmatodus.) 

 Hay, O. P. 1899 E, p. 784. 



Lesley, J. P. 1890 A, p. 1048, figures. (Stemmato- 

 dus.) 



Woodward, A. S. 1889 D, p. 247. (Stemmatodus.) 

 Subcarboniferous (Burlington); Iowa. 



Stemmatias bifurcatus (St. J. and 

 Worth.). 



St. John and Worthen 1875 A, p. 330, pi. viii, figs. 

 31a-31c. (Stemmatodus. ) 



Hay, O. P. 1899 E, p. 784. 



Lesley, J. P. 1890 A, p. 1048, figures. (Stemmato- 

 dus.) 



Woodward, A. S. 1889 D, p. 247. (Stemmatodus.) 

 Subcarboniferous (Burlington); Iowa. 



Stemmatias cheiriformis (St. J. and 

 Worth.). 



St. John and Worthen 1875 A, p. 330, pi. viii, figs. 

 29, 30. (Stemmatodus. ) 



Hay, O. P. 1899 E, p. 784. 



Lesley, J. P. 1890 A, p. 1048, figures. (Stemmato- 

 dus.) 



Woodward, A. S. 1889 D, p. 247. (Stemmatodus.) 

 Subcarbouiferous (Burlington); Iowa. 



Stemmatias compactus (St. J. and 



Worth.). 

 Fit. John and Worthen 1875 A, p. 334, pi. viii, figs. 



38rt-38c. (Stemmatodus.) 

 Hay O. P. 1899 E, p. 784. 



Lesley, J. P. 1890 A, p. 1049, figure. (Stemmato- 

 dus.) 



Woodward, A. S. 1889 D, p. 247. (Stemmatodus.) 

 Subcarboniferous (Chester); Illinois. 



Stemmatias keokuk (St. J. and 



Worth.). 



St. John and Worthen 1875 A, p. 334. (Stemmato- 

 dus.) 



Hay, O. P. 1899 E, p. 784. 



Woodward, A, S. 1889 D, p. 247. (Stemmatodus). 

 Subcarboniferous (Keokuk); Iowa, Illinois. 



Stemmatias simplex (St. J. and 

 Worth.). 



St. John and Worthen 1875 A, p. 332, pi. viii, figs. 

 34, 36, 37. (Stemmatodus.) 



Hay, O. P. 1899 E, p. 784. 



Lesley, J. P. 1890 A, p. 1049, figures. (Stemmato- 

 dus.) 



Woodward, A. S. 1889, D, p. 247. (Stemmato- 

 dus.) 

 Subcarboniferous (Burlington); Iowa. 



Stemmatias symmetricus (St. J. and 



Worth.). 

 ,S(!. John and Worthen 1875 A, p. 333, pi. viii, fig. 



28; ( Stemmatodus. ) 

 Hay, O. P. 1899 E, p. 784. 



Lesley, J. P. 1890 A, p. 1049, figures. (Stemmato- 

 dus.) 



Woodward, A. S. 1889 D, p. 247. (Stemmatodus.) 

 Subcarboniferous (Burlington); Iowa. 



HETERODONT ED^E. 



GUI, T. 1862 A. (Heterodontoidae.) 



Agassiz, L. 1843 B (1838), iii, pp. 83, 159. ("Ces- 

 traciontes.") 



Brown, C. 1900 A, p. 173. (Cestraciontidee, Hybo- 

 dontidse.) 



Davis, J. W. 1882 B. ( Hybodontidae. ) 



1883 A, pp. 331, 332. (Hybodontidse.) 



Fraas, E. 18% A, pp. 17, 18. (Hybodontidse, Aero- 

 don tidas, Cestraciontidse.) 



Fritsch A. 1889 B, p. 97. (Hybodontidae.) 



Gannan, S. 1885 B, p. 31. (Hybodontidse.) 



Gegenbaur, C. 1872 A. (Cestraciodontidse.) 



Gill, T. 1872 C, p. 23. (Heterodontidae.) 



1884 B, p. 346. (Hybodontidse, Heterodon- 

 tidae.) 



Gurrther, A. 1880 A, p. 328. (Hybodontidae, Ces- 

 traciontidae.) 



1881 A, p. 685. (Hybodontidse, Cestracion- 

 tidee.) 



Hasse, C. 1878 A. (Hybodontidae, Cestraciontidse.) 

 1879 A, p. 50 ("Acrodontiden"); p. 68 (Hy- 

 bodontidse). 



1882 A, p. 183. (Cestra/jiontidse.) 

 Haswell, W. A. 1884 A. (Cestraciontidse.) 



