HERPETO'LOGICAL COLLECTION FROM MEXICO — SHAHSCNONi 483 



stripe. Unfortunately the single specimen obtained has suffered de- 

 hydration at one time or another, and while it has been beautifully 

 restored with trisodium phosphate, the lateral stripes can barely be 

 made out. The dorsal stripe can be noted only by considerable ma- 

 nipulating and a maximum of wishful thinking. As a matter of fact, 

 the dark spots between the stripes can hardly be distinguished. The 

 anterior dozen ventrals show much more black pigmentation than is 

 common for this species. 



Though a dorsal stripe on the back of dwysocephalus may even- 

 tually prove to be of subspecific value, it is obvious that no reliable 

 diagnosis may now be attempted on the basis of a single dehydrated 

 specimen. The specimen does occur on the southeastern edge of the 

 known range for the species, and other striped specimens may be found 

 to the south and east and possibly to the south and west nearer the 

 coast. In fact, Smith (1942) records such a specimen, EHT-HMS 

 23778, from Omilteme, Guerrero, which has a light stripe on the mid- 

 dorsal row of scales fading out about an inch behind the head; two 

 others in the British Museum of Natural History, from Omilteme, 

 Guerrero, and Jalapa, Veracruz, are similar (fide Smith, in 

 convei-sation). 



Genus BOTHROPS Wagler 



BOTHROPS NUMMIFER VERAECRUCIS Burger 



Bothrops nummifer veraecrticis Bl'Bger, Bull. Chicago Acad. Sci., vol. 9, pp. 59-67, 

 pi. 1, tig. 1, 1950. 



U.S.N.M. Nos. 123709 male, and 123712 female, from 4 miles south 

 of San Lucas Camotlan, Oaxaca. 



Both specimens were taken while sunning in a chili patch 4 miles 

 from the town. The eyes of the male were a bright golden-flecked 

 color in life. The pupil was narrowed "to a mere pin point of black." 

 There were beautiful dark brown markings on a lighter brown ground 

 color. In most instances the dark brown marks were separated by a 

 faint whitish edging. 



Two field mice were extracted from the male. 



The Mixe name for the snake is puhk. 



LITERATURE CITED 



BOULENGER, G. A. 



1905. Description of new reptiles discovered in Mexico by Dr. H. Gadow. 

 Proc. Zool. Soc. London, vol. 2, pp. 245-247, 2 pis. 



Bredee, C. M, 



1946. Amphibians and reptiles of the Rio Chucunaqiie drainage, Dari^n, 

 Panama, with notes on their life histories and habits. Bull. Amer. 

 Mus. Nat. Hist., vol. 86, art. 8, pp. 381-435, 25 figs., 19 pis. 



