484- 7. XANTUSIIDM 



single specimen taken at San Francisquito, Sierra Laguna, in 

 the Cape Region of Lower California, Mexico. The Na- 

 tional Museum has a second specimen taken at La Laguna in 

 the same mountain range. 



1 00. Xantusia henshawi Stejneger 



HENSHAW'S NIGHT LIZARD 



Plate 50 



Xantusia henshawi STEJNEGER, Proc. U. S. Nat. Mus., Vol. XIV, 1893, 

 p. 467 (type locality, Witch Creek, San Diego County, Cal- 

 ifornia); VAN DENBURGH, Proc. Cal. Acad. Sci. (2), V, 1895, p. 

 530; VAN DENBURGH, Occas. Papers Cal. Acad. Sci., V, 1897, p. 

 128; DITMARS, Reptile Book, 1907, p. 183; VAN DENBURGH, Copeia, 

 No. 27, 1916, p. 14; GRINNELL & CAMP, Univ. Cal. Publ. Zool., 

 Vol. 17, No. 10, 1917, p. 171; STEJNEGER & BARBOUR, Check List 

 N. Amer. Amph. Kept., 1917, p. 64; STEPHENS, Trans. San Diego 

 Soc. Nat. Hist., Vol. Ill, No. 4, 1921, p. 63. 



Zablepsis henshavii COPE, Am. Nat., XXIX, 1895, pp. 758, 860; COPE, 

 Report U. S. Nat. Mus. for 1898, 1900, p. 553, fig. 100. 



Xantusia picta COPE, Am. Nat., XXIX, 1895, pp. 859, 939 (type locality, 

 "Tejon Pass, California"); DITMARS, Reptile Book, 1907, p. 182; 

 VAN DENBURGH, Copeia, No. 27, 1916, p. 14. 



Description. Body greatly depressed, with very short 

 limbs. Upper surface of head very flat. Three folds on 

 throat. Nostril opening in a small scute at junction of ros- 

 tral, internasal, postnasal and first labial plates. Rostral 

 broad and rather low, bounded by first labial, nasal and 

 internasal plates. Two internasals followed by a large sub- 

 quadrate frontonasal, sometimes divided longitudinally 5 

 behind this two prefrontals, bordered posteriorly by broad 

 frontal and first superciliary plates. Each of two fronto- 

 parietal plates in contact with frontal, second, third and 

 fourth superciliaries, first supratemporal, parietal, interpa- 

 rietal, and its fellow of opposite side. Parietals and inter- 

 parietal bordered behind by two large occipitals. One or 



