444 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



♦LEPTOPHIS MEXICANUS YUCATANENSIS Oliver 



The Museum has three specimens, from Chichen Itzii, Yucatan (No. 

 4G567), and "Yucatan" (Nos. 24884-5), all paratypes (Oliver, 1942, 

 p. 10). 



*LEPTOTYPHLOPS DULCIS (Baird and Girard) 



Two Mexican specimens are in the Museum, No. 4872 from Mon- 

 terrey, Nuevo Leon, and No. 46580 from Bagdad, Tamaulipas. 



*LEPTOTYPHLOPS HUMILIS DUGESII (Bocourt) 



Three specimens are in the Museum, No. 2G140 from "Mexico," No. 

 49632 from Talpa, Jalisco, and No. 48537 from "Guanajuato." 56 



*LEPTOTYPHLOPS MYOPICA MYOPICA (Garman) 



Two specimens are in the Museum, No. 7291 from Monterrey, Nuevo 

 Leon, and No. G6886 from Panuco, Veracruz. 



LEPTOTYPHLOPS PHENOPS PHENOPS (Cope) 



Seventeen specimens were collected, from Palma Sola (10 miles east 

 of San Juan de la Punta), Veracruz (Nos. 110308-11) ; vicinity of 

 Tehuantepec, Oaxaca (Nos. 110312-21, IBIS Nos. 18584, 18597) ; Rio 

 Grande, 12 miles north of Niltepec, Oaxaca (No. 110322). 



The Museum has 18 other Mexican specimens, from Tehuantepec, 

 Oaxaca (Nos. 12444, 30091-4, 30289-95, 30531-3, 46500), Jalpan, Q.ue- 

 retaro (No. 46581), and Coatzacoalcos (Puerto Mexico), Veracruz 

 (No. 61183). 



The Veracruz specimens do not seem distinguishable from the Oax- 

 aca ones. Most distinctive of all is the one from Jalpan, Queretaro, in 

 which the pupil is not at all visible, there is no striping whatever, and 

 the light marks so characteristic of the species, on the tail and head, 

 are completely lacking. In scale counts it is normal, and until other 

 specimens are available from the same region it is referred to this 

 species and race. The Rio Grande specimen approaches the character 

 of bakeweUi in having the rostral elongate and the first dorsal scale 

 reduced, so that the rostral contacts the supraocular on one side (nar- 

 rowly separated on the other). On the basis of the latter specimen, 

 and because of geographic probability, bakeiveUi is considered a race 

 of phenops. 



The dorsal scales, from rostral to spine, and the subcaudals, re- 

 spectively, are as follows : 12444, 238, 19 ; 30091, 243, 19 ; 30092, 236, 19 ; 

 30093, 234, 18; 30094, 248; ? ; 30289, 254, 16; 30290, 247, 13; 30291, 237, 



Klauber, 1940, pp. 129-131. 



