432 



PROCEEDINGS OF THE NATIONAL MUSEUM 



GEOPHIS OMILTEMANA Giinther 



Oeophis omiltemana Smith. Proc. New England Zool. Club, vol. 18, p. 51, 1941 

 (footnote). 



One specimen (No. 109945) is from Omilteme, Guerrero, collected 

 by E. H. Taylor. Scales in 17 rows ; ventrals 148 ; caudals 45 ; male. 

 Supralabials 6-6; infralabials indeterminate; third and fourth labials 

 entering orbit; chin shields separated from mental. Color as de- 

 scribed for the species. 



The Museum has no others of the species. 



♦GEOPHIS ROSTRALIS (Jan) 



Two specimens in the Museum (Nos. 31351-2) are from "Mexico." 

 The scale rows are 17, supralabials and infralabials 6-6, in each; 

 respectively the ventrals are 137, 138, caudals 48 S , 43. 



GEOPHIS SEMIDOLIATUS (Dumeril and Bibron) 



Of this species 349 specimens were collected, of which Nos. 109968- 

 110294 are from Cuautlapan, Veracruz, and Nos. 109946-67 from 

 Potrero Viejo, Veracruz. These were invariably found in banana 

 patches under fallen banana trunks or under debris. They are rarely 

 found in the dry season but are common after the rains start. 



The Museum has 11 other specimens, from Mirador (Nos. 12114, 

 25026-8), hills west of Veracruz (No. 5315), and Orizaba (No. 12118), 

 Veracruz; and "Mexico" (Nos. 7294, 12090, 12307, 12485, 12732). 



*HETERODON NASICUS NASICUS Baird and Girard 



The Museum has a single specimen (No. 61954) from "Sonora." 



HETERODON NASICUS KENNERLYI Kennicott 



Six specimens in the collection are as follows : Progreso, Chihuahua 

 (No. 104665) ; 17 miles west of Carmen, Chihuahua (No. 105290) ; 13 

 miles west of San Pedro, Coahuila (Nos. 105296-9). 



Table 15. — Variation in Heterodon nasicus kennerlvi 



