MEXICAN SNAKES AND CKOCODILLANS — SMITH 415 



sal surface very dark, number of blotches indeterminate. Certain 

 blotches that can be discerned are four scales long and cover about 

 five rows transversely. 



The Museum has two others, from Santa Teresa, Nayarit (No. 

 46333), and Ameca, Jalisco (No. 46465), referred by Gloyd (1940, p. 

 87) to this subspecies. 



CROTALUS TRISERIATUS ANAHUACUS Glcyd 



One male specimen (No. 110598) is from El Limon Totalco, Vera- 

 cruz. It was found quietly sunning itself in a lava field at about 10 

 o'clock on the morning of March 1, 1940. The preceding night had 

 been very cold, and even Toluca (typically nocturnal snakes) were 

 found sunning themselves the following day. The elevation was 7,600 

 feet. Scale rows 21-21-15, ventrals 161, caudals 25, supralabials 9-10, 

 infralabials 9-9, body spots 40, tail spots 7. 



The Museum has no others of the subspecies. 



♦CROTALUS TRISERIATUS OMILTEMANUS Gunther 



A single specimen in the Museum (No. 46343) is from Omilteme, 

 Guerrero. 26 



*CROTALUS TRISERIATUS PRICEI Van Denburgh 



The Museum has 18 specimens, 27 all from the state of Chihuahua: 

 Dist. Galeana, 15 miles north of Chuichupa, 2,418 m. (Nos. 42865- 

 72) ; Rio Piedras Verdes, 6,800 feet. (No. 26594) ; Dist. Guerrero 

 (Nos. 40062, 42494-5, 42498) ; Colonia Garcia (Nos. 46327-9; Guade- 

 lupe y Calvo (No. 46350) ; "Chihuahua" (No. 55858). 



'CROTALUS VIRIDIS VIRIDIS (Rafinesque) 



The Museum has four specimens, 28 No. 264 from Espia, Chihuahua, 

 and Nos. 61955 and 61957-8' from Sonora. 



*CROTALUS WILLARDI Meek 



The Museum has 10 specimens, from Chihuahua: Rio Piedras 

 Verdes (No. 26593) ; Dist. Guerrero (Nos. 42496-7) ; Sierra Madre 

 (No. 42709); Colonia Garcia (Nos. 46322-6). Zacatecas: Sierra 

 Madre (No. 46332). 



DENDROPHIDION VINITOR Smith 



Figure 13 



Dendrophidion vinitor Smith, Proc. Biol. Soc. Washington, vol. 54, pp. 74-76, 

 1941. 



23 Gloyd, 1940, p. 95-96, map 6, pi. 8. 



27 Amaral, 1927a, p. 53. 



28 Amaral, 1929a, p. 89. 



