1917] Grinnell-Camp: Amphibians and Reptiles of California 171 
County, are intermediate towards pulchra, but nearest nigra. Occurs 
within the Transition life-zone. Lives in sand dunes. 
Family XANTUSIIDAE 
Xantusia vigilis Baird 
Desert Night Lizard 
OrIGINAL DescripTion.—Yantusia vigilis Baird, Proc. Acad. Nat. 
Sei. Phila., 1858 [1859], p. 255. 
Type Locaniry—Fort Tejon, California [probably Antelope 
Valley, in northern Los Angeles County (see Grinnell and Grinnell, 
Throop Inst. Bull., 35, 1907, p. 59) |. 
Common Name.—Xantus’s Lizard. 
Ranee.—Restricted to the tree yucea belt, chiefly on the Mohave 
Desert. Ranges north to east slope of Inyo Mountains, Inyo County 
(Meek, Field Columb. Mus., zool. ser., 7, 1905 [1906], p. 13) ; west in 
vicinity of Walker Pass, Kern County, to Kelso Creek Valley, 3200 
feet altitude, near Weldon (Mus. Vert. Zool.), to head of Piru Creek 
(Meek, loc. cit.) and Pallett (Mus. Vert. Zool.), in northern Los 
Angeles County, to Hesperia, San Bernardino County (Stejneger, 
N. Amer. Fauna, 7, 1893, p. 198), and to Cabezon, Riverside County 
(Van Denburgh, Proe. Calif. Acad. Sci., ser. 2, 5, 1895, p. 526) ; east 
to Goffs [Blake P. O.], San Bernardino County (Camp, Univ. Calif. 
Publ. Zool., 12, 1916, p. 528). Oceupies the Lower Sonoran life-zone. 
Lives in and beneath prostrate trunks of tree yuceas. 
Xantusia henshawi Stejneger 
Henshaw Night Lizard 
OrIGINAL DEscripTION.—Xantusia henshawi Stejneger, Proce. U.S. 
Nat. Mus., 16, 1893 [1894], p. 467. 
Tyrr Locauiry—Witch Creek, 2700 feet altitude, San Diego 
County, California. 
Synonyms.—NVantusia picta Cope, Amer. Nat., 29, 1895, pp. 859- 
860, 939 (type from ‘*‘Tejon Pass’’—almost certainly Poway, San 
Diego County: Van Denburgh, Copeia, no. 27, February 24, 1916, 
pp. 14-15) ; Zablepsis henshawt. 
Common Names.—Henshaw’s Lizard; Cope’s Lizard. 
RancEe.—Known only from eastern San Diego County, at the type 
locality as above, at Poway (Van Denburgh, loc. cit.), and in La 
