MEXICAN SNAKES AND CRiOCODILIANS — SMITH 467 



oculars; in all others the preoculars and postoculars are 2-2. Loreal 

 single in all; antepenultimate labial in contact with postoculars in 

 all; and anterior section of nasal separated from second supralabial 

 in all. Supraanal keels are present in adult males. 



The National Museum has five other specimens, from Orizaba, 

 Veracruz (No. 30495) ; San Cristobal, Jalisco (No. 46419) ; Guana- 

 juato (No. 9883) ; "between Mexico City and Chihuahua" (No. 8325) ; 

 and "Jalisco" (No. 56576). 



*SALVADORA BOGERTI Smith 



A single specimen, the type, is in the Museum, from Tehuantepec, 

 Oaxaca (No. 30296) . 75 



♦SALVADORA GRAHAMIAE Baird and Girard 



Two specimens from Mexico are in the Museum, from Presidio del 

 Norte, Chihuahua (No. 2080), and from "Sonora" (the type, No. 

 2081 ). 76 



*SALVADORA HEXALEPIS HEXALEPIS (Cope) 



Two specimens from Mexico are in the Museum, from "Sonora" (No. 

 2082) and Sierra Blanca, Sonora (No. 43187). 



♦SALVADORA HEXALEPIS CELERIS Smith 



A single specimen, the type (No. 40043), is in the Museum, from 

 San Bias, Sinaloa. 77 



SALVADORA HEXALEPIS DESERTICOLA Schmidt 



Six specimens were collected, all near the Rio Santa Maria, near 

 Progreso, Chihuahua (Nos. 104668-73). 



Preoculars 1-2 in one, and 2-2 in the remainder ; postoculars 2-2 in 

 all ; loreal single in all ; anterior section of nasal contacts second labial 

 in all ; antepenultimate supralabial contacts postoculars in all. 



The Museum has eight others from Mexico, all from the state of 

 Chihuahua : "Chihuahua" (Nos. 14255, 14295) ; Lake Santa Maria (No. 

 46593) ; Batopilas (No. 46505) ; Balleza (No. 46504) ; Casas Grandes 

 (Nos. 46375-6); and Chihuahua City (No. 46451). 



'5 Smith, 1941b, pp. 2-6, figs. 1-2. 



w Baird and Girard, 1853, p. 104 ; Schmidt, 1940, pp. 144-145. 



TT Smith, 1941b, pp. 9-11. 



