DISSOROPHUS COPE 535 



Rhachitomi. ■. 



Eryopidae Cope, 1882. 

 Eryops Cope, 1877. 



megacephalus Cope, 1877, Texas. 



erythroliticus Cope, 1878, Texas. 



ferricolus Cope, 1878, Texas. 



reticulatus Cope, 188 1, New Mexico. 



latus Case, 1903, Texas. 

 Anisodexis Cope, 1882. 



imbricarius Cope, 1882, Texas. 

 Zatrachydidae, Nov. 



Zatrachys Cope, 1878. 



serratus Cope, 1878, Texas. 



apicalis Cope, 1881, New Mexico. 



conchigerus Cope, 1896, Texas. 



microphthalmus Cope, 1896, Texas. 

 Trematopsidae Williston, 1910. 

 Trematops Williston, 1909. 



milleri Williston, 1909, Texas. 

 ? Acheloma Cope, 1882. 



cumminsi Cope, 1882, Texas. 

 Dissorophidae Williston, 19 10. (Otocoelidae Cope.) 

 Dissorophus Cope, 1895. 



multicinctus Cope (? articulatus Cope), Texas. 

 Cacops Williston, 19 10. 



aspidephorus Williston, 19 10, Texas. 

 ? Aspidosaurus Broili, 1904. 



chiton Broili, 1904, Texas. 

 Trimerorhachidae Cope, 1891. 

 Trimerorhachis Cope, 1878. 



insignis Cope, 1878, Texas. 



bilobatus Cope, 1883, Texas. 



conangulus Cope, 1896, Texas. ' . • 



mesops Cope, 1896, Texas. 



leptorhynchus Case, 1903, Oklahoma. 

 Incertae sedis. 



Cardiacephalus Broili, 1904. 



stembergi Broili, 1904, Texas. 



EXPLANATION OF PLATES 



Plate I. — Dissorophus multicinctus Cope; dorsal view of skull. Three- 

 fourths natural size. 



