CHECKLIST OF THE SNAKES OF MEXICO 195 



CROTALUS SCUTULATUS SALVINI Gunther 



Crotalus salvini Guntheb, Biologia Centrali-Americana, Kept., 1895, pp. 193-194, 

 pi. 59, fig. A.— Tekkon, Mem. Soc. Cient. Ant. Alzate, vol. 39, 1921, pp. 1S8-1S9 

 (type locality restricted to Huumantla, Tlaxcala ; type tliat of C. salvini 

 Giinther). 



Crotalus scutulatus salvini Gloyb, Spec. Piibl. Chicago Acad. Sci., No. 4, 1940, 

 pp. 201-202, map 15. 



Type.— Brit. Miis. Nat. Hist. 

 7'ype locality. — Huamantla, Tlaxcala. 



Range. — Tlaxcala to southeastern Piiebla (recorded from La Virgin 

 and San Diego, Puehla^ and Huamantla, Tlaxcala). 



CROTALUS SEMICORNUTUS Taylor 



Crotalus semicornutus Taylor, Univ. Kansas Sci. Bull., vol. 30, 1944, pp. 52-55, 

 fig. 2, pi. 7. 

 Type.—E. H. Taylor-H. M. Smith Coll. No. 23014. 

 Type locality. — Mojarachic, Chihuahua. 

 Range. — Known only from the type locality. 



CROTALUS STEJNEGERI Dunn 



Crotalus stejncgeri Dunn, Proc. Biol. Soc. Washington, vol. 32, 1919, pp. 214- 

 216.— Gloyd, Spec. Publ. Chicago Acad. Sci., No. 4, 1940, p. 232, map 21, 

 pi. 29. 



Type.—U.S.^.M. No. 46186. 

 Type locality. — Plumosas, Sinaloa. 



Range. — Mountains of southeastern Sinaloa and southwestern Du- 

 rango (recorded only from the type locality and Yentanas, Durango). 



CROTALUS TIGRIS Kennicott 



Crotalus tigris Kennicott, in Baird, Report on the United States and Mexican 

 boundary survey, vol. 2, 1859, Rept., p. 14, pi. 4.— Gloyd, Spec. Publ. Chicago 

 Acad. Sci., No. 4, 1940, pp. 223-224, map 19, pi. 27, fig. 1. 



Type.— V.S.'N.M. No. 471. 



Type locality. — "Sierra Verde and Pozo Verde," Arizona-Sonora 

 boundary near Sasabe, Ariz. 



Range. — "Rocky foothills of mountains and their adjacent desert 

 slopes in south-central Arizona and northeastern and central Sonora, 

 from the vicinity of Phoenix, Arizona, to Guaymas on the gulf coastal 

 plain of Sonora." 



CROTALUS TORTUGENSIS Van Denburgh and Slevin 



Crotalus tortugensis Van Denbukgh and Slevin, Proc. California Acad. Sci., ser. 4, 

 vol. 11, 1921, p. 398.— Klauber, Bull. Zool. Soc. San Diego, No. 6, 1930, pp. 2, 

 10, et seq.. 39, 46, maps 1. 2, pi. 6 (tail only). — Gloyd, Spec. Publ. Chicago 

 Acad. Sci., No. 4, 1940, p. 309, map 16. 



Type.— Calit Acad. Sci. No. 50515. 



