CHECKLIST OF REPTILES OF MEXICO 153 



Type.— V.S.N. M. No. 111488; H. M. Smith collector. 



Type locality. — Cerro Arenal, 30 kilometers west of Tehuantepec, 

 Oaxaca. 



Range. — Pacific slopes of Oaxaca and Chiapas (?) in the vicinity of 

 the Isthmus of Tehuantepec. Reported from Tres Cruces, El Lim6n, 

 Cerro Arenal, La Concepci6n, Santa Efigenia, mountains near Santo 

 Domingo, near Tehuantepec, Cafetal Concordia; ? Chiapas: Tonala. 



LEPIDOPHYMA SMITHU OCCULOR Smith 



Lepidophyma smithii occulor Smith, Proc. U. S. Nat. Mus., vol. 92, 1942, pp. 

 378-379. 



TVpe.— U.S.N.M. No. 47133; E. W. Nelson and E. A. Goldman 

 collectors. 



Type locality. — Jalpan, Queretaro. 



Range. — Atlantic slopes presumably from northern Veracruz into 

 southern Tamaulipas. Recorded only from San Luis Potosi: Tama- 

 zunchale; Queretaro: Jalpan. 



Genus GAIGEIA Smith 



Gaigeia Smith, Publ. Field Mus. Nat. Hist., zool. ser., vol. 24, 1939, p. 24. 



Genotype. — Lepidophyma gaigeae Mosauer. 

 Range. — Hidalgo and Oaxaca. 

 Species. — Four. 



KEY TO MEXICAN SPECIES OF GAIGEIA 



1. All whorls on tail complete, none restricted to dorsal surface -gaigeae (p. 154) 

 Some of scale whorls on tail restricted to dorsal surface 2 



2. Only one row of scales on ventral surface between whorls of enlarged scales 



(i. e., every third whorl restricted to dorsal surface) 3 



Proximally 2 and distallj- 3 rows of scales on ventral surface between whorls 

 of enlarged scales sylvatica (p. 154) 



3. Numerous, very closely approximated, enlarged, keeled scales, separated by 



small granules, present on sides of body; 2 or 3 rows of granules in vertebral 



region radula (p. 153) 



Dorsal scales practically uniform in size; 4 rows of granules in vertebral region. 



dontomasi (p. 153) 

 GAIGEIA DONTOMASI Smith 



Gaigeia dontomasi Smith, Proc. U. S. Nat. Mus., vol. 92, 1942, pp. 374-376. 



Type.— U.S.N. M. No. 111473; Thomas MacDougall collector. 

 Type locality. — Lachiguiri, Oaxaca, 7,100 feet elevation. 

 Range. — Known only from the type locality. 



GAIGEIA RADULA Smith 



Gaigeia radula Smith, Proc. U. S. Nat. Mus., vol. 92, 1942, pp. 378-379. 

 Type.— U. S.N. M. No. 111472; H. M. Smith collector. 



