416 GEOLOGY OF NORTHWESTERN TEXAS. 



ing the publications in which they were described by him. Many of these 

 fossils were collected by myself before the Texas Survey was organized: 



PISCES. 



Selachii. 

 Janassa, Munster. 

 J. ordiana, Cope. 

 Ctenacanthus, Agass. 



C. amblyxiphios, Cope, MSS. 



Didymodus, Cope; Proc. Acad. Phila., 1883, p. 108; Proc. Amer. Phil. Soc, 

 18-84, p, 572. 



D. texensis, Cope; D.f compressus, Cope; 1. c. 



D. platypternus, Cope ; 1. c. 



Dipnoi. 



Ctenodus, Agass. 



C. periprion, Cope; Proc. Amer. Phil. Soc, 1878, p. 527. 



C. porrectus, Cope; 1. c. 



C. dialophus, Cope; Proc. Amer. Phil. Soc, 1878, p. 528. 



Gnathorhiza, Cope; Proc. Amer. Phil. Soc, 1883, p. 629. 



G. serrata, Cope; 1. c 



Cebatodus, Agass. 



C. favosus, Cope; Proc. Amer. Phil. Soc, 1884, p. 28. 



Teleostomata. 



Ectosteorachis, Cope; Pal. Bull. No. 32, 1880, p. 19. 



E. nitidus, Cope; 1. c. 



E. ciceronius, Cope; Proc. Amer. Phil. Soc, 1883, p. 628. 

 Benedenia, Traquain 



B. palmaris, Cope, MSS. 



BATRACHIA. 



Ganocephala. 



Trimerorchachis, Cope; Proc. Amer. Phil. Soc, 1878, p. 524; 1880, p. 54. 



T. insignis, Cope; 1. c, p. 524. 



T. bilobatus, Cope; 1. c, 1883, p. 629. 



Rhachitomi. 



Zatrachys, Cope; Proc Amer. Phil. Soc, 1878, p. 523, et infra. 

 Z. serratus, Cope; 1. c et infra. 



