CHECKLIST OF REPTILES OF MEXICO 83 



HOLBROOKIA MACULATA APPROXIMANS Baird 



Holbrookia approximans Baib.!),^^ Proc. Acad. Nat. Sci. Philadelphia, 1858, p. 253. 

 Holbrookia maculata approximans, Stejneger, North Amer. Fauna, No. 3, 1890, 



p. 109.— Schmidt, Bull. Amer. Mus. Nat. Hist., vol. 46, 1922, pp. 721-723, 



pi. 60.— Smith, Handbook of lizards, 1946, pp. 119-122, pi. 17. 

 Holbrookia maculata flavilenta Cope, Proc. Acad. Nat. Sci. Philadelphia, 1883, 



p. 10 (Lake Valley, Dona Ana County, N. Mex.; Acad, Nat. Sci. Philadelphia, 



2 cotypes; E. D. Cope collector). 



Type. — Lost. 



Type locality. — Lower Rio Grande of Tamaulipas (Jide Baird, 

 United States-Mexican boundary survey, Reptiles, 1859, p. 8). 



Fange. — Western Texas to eastern Arizona, and from southeastern 

 Utah southward through Chihuahua and central Coahuila, and 

 southward in the west to Jalisco. Reported from Chihuahua: 35 and 

 40 miles south of Moctezuma, between Churo and Chiricahui, Ojos 

 del Diablo, Rio Santa Maria, Ramos, Casas Grandes; Coahuila: ? 

 Concordia, Sierra de Santa Rosa, Buena Vista, Hda. La Rosita; San 

 Luis Potosi: 5 miles northeast of Candido Navarro ; Sonora: headwaters 

 of San Pedro; Durango: El Oro; Jalisco: Colotlan.®^ 



HOLBROOKIA MACULATA DICKERSONAE Schmidt 



Holbrookia dickersonae Schmidt, Amer. Mus. Nov., No. 22, 1921, p. 2; Bull. 



Amer. Mus. Nat. Hist., vol. 46, 1922, pp. 724-725.— Smith, Univ. Kansas 



Sci. Bull., vol. 22, 1935, pp. 188-189. 

 Holbrookia maculata dickersonae, Smith and Mittleman, Trans. Kansas Acad. 



Sci., vol. 46, 1943, pp. 243-244. 



Ty^pe.— U.S.N.M. No. 2668A; Lt. D. N. Couch collector. 



Type locality. — Castanuelas, Coahuila. 



Range. — The northern portion of the central plateau, as far south 

 as Guanajuato, and adjacent areas immediately northward in southern 

 Coahuila and Durango. Reported from Coahuila: Castanuelas, 

 Hipolito, Jaral, Agua Nueva, Jimulco, Saltillo, Alamo de Parras, 10 

 miles east of Torredn; Durango: near Avilco, 5 miles north of Conejos, 

 25 miles north of Bermejillo, Gomez Palacio; San Luis Potosi: Jesus 

 Maria; Zacatecas: La Colorada, Berriozabal; Guanajuato: San Felipe. 



HCLBRCOKIA MACULATA LACERATA Cope 



Holbrookia lacerata Cope, U. S. Nat. Mus. Bull. 17, 1880, p. 15. — Schmidt, Bull. 



Amer. Mus. Nat. Hist., vol. 46, 1922, p. 718. 

 Holbrookia maculata lacerata, Stejneger, North Amer. Fauna, No. 3, 1890, 



p. 109.— Smith, Handbook of lizards, 1946, pp. 122-124, pi. 18. 



91 The type locality for this name strongly indicates that the species involved is //. propinqua, since that is 

 the only one of this group whose range reasonably may include the state of Tamaulipas. Nevertheless, 

 since the description better fits H. maculata, and since Baird presumably well knew H. propinqua (having 

 described it also), we retain the previous allocation of the name H. approximans pending further investiga- 

 tions. 



•' A number of records for "Tamaulipas,' without specific locality, are regarded erroneous either by 

 misidentification or incorrect locality data. 



