658 Bulletin American Museum of Natural History [Vol. XLVI 



Range. — Lower California south to San Jose, Gulf of California. 



Lower Californian Records. — San Pedro Martir Mts., northern Lower 

 California, Van Denburgh, 1894, p. 298; San Jose Island, Gulf of California, Van 

 Denburgh; 1895, p. 106; Santa Rosalia, San Ignacio, and Mulege, Mocquard, 1899, 

 p. 306; San Salado Canon, San Matias, Canon Esperanza, Parral, San Quentin, and 

 Rosarito, Meek, 1905, p. 10; San Xavier, Van Denburgh and Slevin, 1921a, p. 59. 



The Albatross collection contains two specimens, one of each sex, 

 (A. M. N. H. No. 5451, U. S. N. M. No. 64488) , from Castro Rancho, 

 Pt. Conception. The male specimen has the frontal more elongate and 

 transversely divided, but is in every other character identical with the 

 female, which has the normal single frontal of the species. It is evident 

 that the specimens referred to Uta stansburiana by Mocquard belong to 

 this species, since they are said to have very small dorsal scales and the 

 frontal entire. 



Uta nigricauda Cope 



Uta nigricauda Cope, 1864, p. 176; Stejneger and Barbour, 1917, p. 51. 



Range. — Southern Lower California 



Lower Californian Records. — Cape St. Lucas, Cope, 1864, p. 176; La Paz, 

 Yarrow, 1882, pp. 55, 56; Magdalena Island, San Jose del Cabo. Miraflores, and 

 Sierra San Lazaro, Van Denburgh, 1895, p. 108; Todos Santos, Agua Caliente, 

 Santiago, San Antonio, Triunfo, San Pedro, foothills of the Sierra Laguna, Van Den- 

 burgh and Slevin, 1921«, p. 58. 



The Albatross collection contains thirty-five specimens of this 

 species representing the following localities: Cape San Lucas (A. M. N 

 H. No. 5438); San Bernardo Mts. (A. M. N. H. Nos. 5471-72; U. S. N 

 M. No. 64494); Miraflores (A. M. N. H. Nos. 5466,5563,5676-91 

 U. S. N. M. Nos. 64495-504); Pichilinque Bay (A. M. N. H. No. 5454) 

 and the island of Espiritu Santo, opposite La Paz, (A. M. N. H. Nos 

 5463-64). 



Four specimens have a divided frontal. The dorsal scaling is highly 

 variable, on one hand approaching Uta microscutata, while in the other 

 direction the enlarged dorsals are as distinct as in Uta o?'?iata or graciqsa 

 Thus, in A. M. N. H. No. 5690, there are only four rows of prominently 

 enlarged dorsals; normally, there are six to eight enlarged rows; and 

 exceptionally, the dorsals are little enlarged and pass more gradually 

 into the smaller laterals. 



Uta ornata symmetrica Baird 

 Uta symmetrica Baird, 1858, p. 25.3. 



Uta symmetrica (part) Stejneger and Barbour, 1917, p. 52. 

 Uta ornata symmetrica Schmidt, 1921a, p. 6. 



Range. — Valley of the Coloraflo River and adjacent areas of the Colorado Desert. 



