MEXICAN SNAKES AND CROCODILIANS SMITH 397 



AMASTRIDIUM SAPPERI (Werner) 



One specimen (No. 110334) is from Las Nubes, Cerro Ovando, 

 Chiapas (2,500 feet). Ventrals 165; anal divided; caudals 70+ a 

 few ; female ; 7 supralabials, third and fourth entering eye, fourth and 

 fifth narrowly in contact with parietal; loreal and preocular fused, 

 but outlines clearly indicating two scales; one postocular. Light 

 area on posterior part of head reddish. 



The specimen was found hidden in gravel through (not over) 

 which water trickled, among boulders in a stream on a steep slope. 



The Museum has one other (No. 46509) , 3 from Chicharras, Chiapas. 



♦ARIZONA ELEGANS OCCIDENTALIS Blanchard 



The Museum has two Mexican specimens, one (No. 14298) 4 from 

 "Chihuahua" and the other (No. 46374) from Casas Grandes, Chi- 

 huahua. 



BOTHROPS ATROX ASPER (Garman) 



Six specimens were collected, all from the state of Chiapas : Palen- 

 que (No. 110430) ; Javarinero (No. 110431) ; La Esperanza, near 

 Escuintla (Nos. 110432-3, HMS Nos. 15627, 16904). All are females, 

 with 210 to 219 ventrals and 61 to 67 caudals. 



The Museum has 15 other Mexican specimens : Chicharras, Chiapas 

 (No. 46602) ; mountains near Santo Domingo, Oaxaca (Nos. 47931-2) ; 

 Teapa, Tabasco (Nos. 46406, 46595) ; Mirador, Veracruz (Nos. 25046- 

 9) 5 ; Orizaba, Veracruz (No. 30220); San Eafael, Veracruz (No. 

 32149); Tuxpan, Veracruz (No. 25212); "Mexico" (Nos. 6372, 

 30243-4). 



♦BOTHROPS BARBOURI (Dunn) 



The Museum has a single specimen, the type (No. 46347), from 

 Omilteme, Guerrero. 8 



♦BOTHROPS BICOLOR Bocourt 



The Museum has a single specimen (No. 46511), from Chicharras, 

 Chiapas. 7 



BOTHROPS DUNNI (Hartweg and Oliver) 



Eleven specimens were obtained, all from the general vicinity of 

 Tehuantepec, Oaxaca: Mount Guengola (Nos. 110416-7, HMS No. 

 11750) ; Tres Cruces (Nos. 110418-20) ; Cerro de Huamelula (No. 



3 Dunn, 1924, p. 1. 



* Blanchard, 1924, pp. 1-5. 



5 Cope, 1861, p. 295. 



"Dunn, 1919, pp. 213-214; Smith, 1941g, p. 62. 



7 Smith, 1941 g, pp. 61-62. 



