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MEXICAN HERPETOLOGICAL MISCELLANY—SMITH 383 
An elongated dark (black) area on either side of head behind eye, much darker 
than general tone of dorsal surface of nape; light spots in centers of scales 
well-defined, blue or tinged with orange, not or very Slightly stippled 
fistulosus 
DRYMOBIUS MARGARITIFERUS MARGARITIFERUS (Schlegel) 
Herpetodryas margaritiferus SCHLEGEL, Essai Phys. Serp., vol. 2, p. 184, 1837 
(New Orleans, Louisiana, by error; here restricted to Veracruz, Veracruz). 
Diagnosis —Subeaudals black-edged posteriorly; a distinct dark 
(black) area in temporal region, much darker than any other part of 
head, darker than general tone of body anteriorly; posterior edge of 
each middorsal scale black, the anterior (concealed) edges blue (in 
adults; white in faded specimens, gray in young), middle yellow or 
light orange (white in faded specimens, light in young). 
Specimens examined.—¥orty-six from Mexico, 6 from Texas, vari- 
ous from Central America. Mexican localities represented by speci- 
mens examined are in the states of Tamaulipas (Alta Mira, Antiguo 
Morelos, 7 miles west of Victoria, Hda. La Clementina nr. Forlon), 
'San Luis Potosi (Jilitla), Veracruz (Catemaco, Cuautlapan, Mina- 
titlin, Mirador, Orizaba, San Rafael, Potrero Viejo, Tuxpan), 7’abasco 
(Tenosique), Chiapas (El Salto and San Juanito, nr. Palenque; 
Tonala), Campeche (Campeche), and Yucatan (Chichen Itza, Puerto 
Morelos). 
Range—aAtlantic slopes below about 4,500 feet, from extreme 
| southern Texas into Central America; also western Chiapas, Pacific 
i slopes. 
| 
| DRYMOBIUS MARGARITIFERUS OCCIDENTALIS Bocourt 
Drymobius margaritiferus occidentalis Bocourt, Miss. Sci. Mex., Rept., p. 718, 
1890 (Volcan Atitlain, Guatemala). 
Diagnosis —Subcaudal surface white, completely unmarked; sides of 
‘head in temporal region little if any darker than median parietal 
region, about same shade as general tone of dorsal surface on nape; 
central spots of dorsal scales gray-brown, diffuse, stippled; black tips 
of dorsal scales shading into gray posterior color. 
_ Specimens examined.—Nine, all from the vicinity of La Esperanza 
(near Escuintla), Chiapas. 
_ Range—Pacific slopes of southern Chiapas and of Guatemala. 
DRYMOBIUS MARGARITIFERUS FISTULOSUS, new subspecies 
Holotype—U.S.N.M. No. 51480, female, from Miramar, Nayarit, 
collected by J. C. Thompson in 1918. 
Paratype.—U.S.N.M. Nos. 31480-31483, 56163, Colima; No. 30484, 
Tehuantepec, Oaxaca; No. 46545, Puente de Ixtla, Morelos. EHT- 
HMS No. 4607, Paso del Rio, Colima; Nos. 4608, 5363-5365, Hda. 
