136 CALIFORNIA ACADEMY OF SCIENCES. 



large plate in front of the external preanal plate of each 

 side. 



Total length 199 mm. Limb 8 mm. Tail 18 mm. 

 Head 7 mm. 



The Academy has a single specimen (No. 128) from 

 La Paz. The type came from Cape San Lucas. 



Rena humilis B. and G. 



Bena humilis. 



(1853, Baird and Girard, Cat. N. A. Eeptiles, i, Serpents, p. 143.) 

 (1887, Cope, Bull. U. S. Nat. Mas., No. 32, p. 64.) 

 (1891, Stejneger, Proc. U. S. Nat. Mus., 1891, p. 501.) 

 (1892, Cope, Proc. U. S. Nat. Mus., 1891, p. 590.) 



Stenostoma Jiumile. 



1861, Cope, Proc. Ac. Nat. Sci. Phila., p. 305. 

 1882, Yarrow, Bull. U. S. Nat. Mus., No. 24, p. 142. 

 (1887, Beldiug, West Am. Scientist, iii, No. 24, p. 98.) 



Glauconia humilis. 



(1893, Boulenger, Cat. Snakes Brit. Mus., i, p. 70.) 



The twenty-three Lower Californian specimens of this 

 curious little reptile in the Academy's collection are all 

 from the "Cape Region." They show that the species 

 lives both in the mountains, and at the level of the sea. 



There is very little variation in color. The lower parts 

 are creamy white, the upper (five to seven rows of scales) 

 Front's brown. The smallest individual is 91 mm. long, 

 while the largest measures 305 mm., of which the tail 

 forms 12 mm. 



The type locality is VaUiecitas (Colorado Desert), Cal- 

 ifornia. The species has been taken in Lower Califor- 

 nia, at Cape San Lucas, by Mr. Xantus, and at La Paz, 

 by Mr. Belding. 



