33 



OPHIDIA. 



SOLENOGLYPHA. 



CKOTALIDAE. 



Aploaspis, Cope. 



Aploaspis lepida, Kennicott, Proc. Acad. Phila., 1861, p. 206. Western 

 Texas. 



Crotalus, Linn. 



CroUdus pyrrhus, Cope, Proc. Phila., 1866, p. 308. Central Arizona. 



Crotalus mitchellii, Cope, loc. cit., 1861, p. 293. Lower California. 



Crotalus cerastes, Hallowell; Baird, U. S. Mex. Bound. Surv., vol. ii, p. 

 14. Arizona. 



Crotalus tigris, Kennicott, U. S. Mex. Bound. Surv., vol. ii, p. 14. Ari- 

 zona. 



Crotalus enyo, Cope, Proc. Acad. Phila., 1861, p. 293. Lower California. 

 Crotalus Jiorridus, Linn. ; Holbrook, N. Am. Herp., iii, p. 9. Eastern and 

 Austroriparian regions. 



Crotalus adamanteus, Beauvois, subspecies adamaiiteus, Beauvois; Baird 

 and Girard, N. Am. Serpents, p. 3. North Carolina to Florida. 



Crotalus adamanteus, Beauvois, subspecies atrox, Baird and Girard, Cat., 

 p. 5. Indian Territory and Texas to Sonora and Southern and 

 Lower California. 



Crotalus adamanteus, Beauvois, subspecies scutulatus, Kennicott, Proc. 

 Acad. Phila., 1861, p. 207. Arizona. 



Crotalus lucifer, Baird and Girard, Cat., p. 6. Pacific subregiou j mount- 

 ains of Arizona. 



Crotalus polystictus. Cope, Proc. Acad. Phila., 1865, p. 191. Table land 

 of Mexico. 



Crotalus confluentus, Say; Baird and Girard, loc. cit., p. 8. Central and 

 Sonoran regions, entering Texan district of the Austroriparian. 



Crotalus molossus, Baird and Girard, Cat., p. 10. Sonoran region, enter- 

 ing the Texan district. 



Caudisona, Laurenti. 



Caudisona rava, Cope, Proc. Acad. Phila., 1865, p. 191. Table laud of 

 Mexico. 

 3h 



