156 BULLETIN IS 7, UNITED STATES NATIONAL MUSEUM 



Tropidonotiis quadriserialis Fischer, Verb. Nat. Ver. Hamburg, ser. 2, vol. 3, 

 1879, p. 82, pi. 1, fig. 2 (type locality, Mazatlan, Sinaloa ; type in Hamburg 

 Mus. ?). — BocoTTKT, Mission scientifique au Mexique et dans I'Amerique 

 centrale, Rept., livr. 13, 1893, pp. 752-753, pi. 54, fig. 6. 



T^/pe.—U.S.'NM. No. 1309. 



Type locality. — Durango. 



Range. — Discontinuous; Cape region of Baja California, and 

 Pacific slopes of "western Mexico from Durango through Colima to 

 central southern Guerrero (recorded from several localities in the 

 states of Baja California, Colima, Durango, Guerrero, Nayarit, and 

 Sinaloa)." 



Genus STORERIA Baird and Girard 



Storeria Baird and Girard, Catalogue of North American reptiles, 1853, pp. 



135-136. 

 Isclinognathus Dum^ril and Bibron, Mem. Acad. Inst. France, vol. 23, 1853, 



p. 468 (type, T. dekayi Holbrook). 

 Hemigenius Dug£s, La Naturaleza, ser. 2, vol. 1, 1890, p. 403. 



Genotype. — Tropidonotus dehayi Holbrook. 



Range. — Eastern North America from Ontario to Guatemala, west 

 to North Dakota, Texas, and across the southern portion of the Mexi- 

 can plateau to Michoacan, and perhaps Jalisco. 



Species. — Five species and subspecies are recognized at present 

 in Mexico; extralimital are tropica of Guatemala and victa and a 

 number of races of dekayi in the United States. 



KEY TO MEXICAN FORMS OF STORERIA 



1. Scales in 15 rows 3 



Scales in 17 rows ; no loreal 2 



2. Generally 3 pairs of cbin sbields dekayi anomala 



Generally 2 pairs of chin sbields 2a 



2a. Anterior temporal with a horizontal dark mark__ dekayi temporalineata 

 Anterior temporal not marked with black, or with black only along mar- 

 gin dekayi texana 



3. A loreal; generally 7 supralabials storerioides 



No loreal; generally 6 supralabials hidalgoensis 



STORERIA DEKAYI ANOMALA Duges 



Storeria dekayi anomala DuGi:Si, Proc. U. S. Nat. Mus., vol. 11, 1888, pp. 9'-10, fig. — 

 Smith, Proc. U. S. Nat. Mus., vol. 93, 1943, p. 473. 



Type. — Mus. Alfredo Duges, Univ. Guanajuato, Mexico. 

 I'yjye locality. — Orizaba, Veracruz. 

 Range. — Foothills of central Veracruz. 



" Dunlde and Smith (Occ. Pap. Mus. Zool. Univ. Michigan, No. 363, 1937, pp. 3-4) 

 erroneously record this species from Rio San Pedro, Chihuahua, a locality far removed 

 from others where the form is Icnown. We are indebted to Roger Conant for the discovery 

 that the record is based upon a Thamnophis ruflpunctatus. 



