162 General Notes, [February, 
(from the American Naturalist, February, 1881.) 
CATALOGUE OF VERTEBRATA OF THE PERMIAN FORMATION OF THE 
a Unirep STATEs. 
PISCES. 
CROSSOPTERYGIA, 
ECTOSTEORHACHIS Cope; Pal. Bull., No. 32, 1880, p. 19. 
1. £. nitidus Cope; 1. c. Texas. 
DIPNOI. 
CTENODUus Agass. 
2. C. fossatus Cope; Proc. Amer, Phil. Soc. 1877, p, 54. Eastern Illinois. 
3. C. gurleianus Cope; |. c., p. 55. Eastern Illinois. 
4. C. periprion Cope; Proc. Amer. Phil. Soc. 1878, p. 527. Texas. 
5. C. porrectus Cope; l.c. Texas. 
6. C. dialophus Cope; 1. c. p. 528. Texas, 
7. C. pusillus Cope; Proc. Amer. Phil. Soc., 1877, p. 191. Eastern Illinois. 
Pryonopus Cope; Proceed. Amer. Philos. Soc. 1877, p. 192. 
8. P. vinslovit Cope; Proc. Acad. Philada. 1876, p. 410. Eastern Illinois. 
9. P. paucicristatus Cope; Proc. Amer. Phil. Soc. 1877, p. 54. Eastern Illinois 
