124 GENERA AND SPECIES OF THE RATTLESNAKES. 



tlie anus. In southwestern specimens, a narrow rufous band frequently extends 

 along the median dorsal line throughout tlie whole length. Tail nearly always 

 entirely black. 



This species is found from Maine to Kansas, and from Louisiana to Florida. 



Caudisona molossus. 



1853. Crotalus molossus: Baikd et Girard, Catal. Rept. Smiths. Inst, p. 10. 

 1859. " " Baird, U. S. et Mex. Bound. Surv. Reptiles, p. 14. 



1854. " ornatus : Hallowell, Proc. A. N. S. Philada., VII, 192, etc. 



1859. " " " U. S. Pac. R. R. Expl. Rept., Parke's Rept. Reptiles, p. 23. 

 Icones. TJ. S. Pac. R. R. Rept. Reptiles, xxiv, f. 5. Il)id., Parke's Rept., tab. li. U. S. and 



Mex. Bound. Surv., tab. iii. 

 Habitat. — In "New Mexico." 



Caudisona lepida. 



1860. Caudisona lepida : Kennicott, MSS. 

 Icon. — Nulla. 



Habitat. — In Texas australi. 



Caudisona cerastes. 



1854. Crotalus cerastes : Hallowell, Proc. Acad. Nat. Sci. Philada., p. 95. 



1859. " " " U. S. Pac. R. R. Expl. Rept. Williamson's Rep. Rept., p. 17. 



1859. " " Baird, U. S. and Mex. Bound. Surv. Reptiles, p. 14. 



Icon. — U. S. et Mex. Bound. Surv., pi. iii. 



Habitat. — In Eremis Colorado et Gila. 



CROTALUS LiNN^us. 



nCC. Crotalus: Linnj.us, Syst. Nat. Ed., XII, 312. 



1788. " Gmelin, Syst. Nat., I, 1080. 



1790. " Bonnaterre, Ophiologie, p. 1. 



1820. " Merrem, Tent. Syst. Amphib., p. 15C. 



1827. " Boie, Isis, p. 562. 



1S25. Crotalophorus : Gray, Ann. Philosophy, p. 205. 



1849. " " Cat. Brit. Mus., p. 17. 



1842. " HoLBROOK, N. Amer. Herp., Ill, 25. 



1853. " Baird et Girard, Cat. Serp. Smiths. Inst., p. 11. 



1826. Caudisona: Fitzinger, Neue Class. Rept., p. 63. 



1830. " Wagler, Nat. Syst. Amphib., p. 176. 



1832. " Bonaparte, Saggio, p. 24. 



1842. " Gray, Zool. Misc., p. 51. 



1843. " Fitzinger, Syst. Rei)t., p. 29. 



Crotalus miliarius. 



1766. Crotalus niiliariu.s: Ltnn^us, Syst. Nat. Ed., XII, v. I, 372. 



1788. " " Gmelin, Linn. S. N., I, 1080. 



1789. " ■' Lac^pede, Hist. Serp., II, 421. 



1790. " " Bonnaterre, Ophiol., p. 1. 



