530 CALIFORNIA ACADEMY OF SCIENCES. 



labials to a point below the pupil. The eye is small, 

 without lids, and with vertical pupil. Its diameter is con- 

 tained about two and one-half times in the distance from 

 the end of the snout to the orbit. The oblique ear open- 

 ing has a weak anterior denticulation. The inferior la- 

 bials are in contact with the large sublabials. The back, 

 sides, posterior surfaces of the limbs, and the gular re- 

 gions, are covered with smooth subhexagonal granules. 

 These are flattened on the gular region, but convex on 

 the back and sides. There is a series of large plates 

 along the edge of the last gular fold. The quadrate ven- 

 trals are in twelve longitudinal and thirty -two transverse 

 rows. The tail is conical, and covered with whorls of 

 smooth scales, which are very narrow and transversely 

 convex. There are eight and nine femoral pores. 



The color above is dark brownish clay, dotted with 

 black on single granules. A pale yellowish line, two 

 granules wide, runs posteriorly from each occipital plate, 

 but is soon lost on the back to reappear over the thigh. 

 The lower surfaces are pale yellowish white. 



Snout to vent (about) 39 mm. Tail (about) 38 mm. 

 Hind limb 14 mm. Fore limb 10 mm. Shielded part of 

 head 8}4 mm. Snout to ear 8 mm. Snout to anterior 

 gular fold "]% mm. Snout to posterior gular fold 12)4^ 

 mm. Base of fifth to end of fourth toe ^}4 mm. 



Distribution. — Xantusia gilberti is known from a sin- 

 gle specimen taken at San Francisquito, Sierra Laguna, 

 Lower California, Mexico. 



Xantusia henshawi Stejn. 



Xantitsia henshawi. 



1893, Stejneger, Proc. U. S. Nat. Mus., p. 467. 



Description. — The body is greatly depressed, with very 

 short limbs. The upper surface of the head is very flat. 

 There are three folds on the throat. The nostril is 



