10. UTA m 



This species is known from four specimens. Its general 

 aspect is very much more like that of U. thalass'ma than like 

 U. mearnsi, but although so closely allied to U. thalasslna, 

 it has the hind limb much shorter, snout shorter and more 

 truncate, and four transverse black dorsal bars in place of 

 the anterior three of that species. 



Distribution. — This lizard was originally described from 

 a single specimen secured at Comondu in the central portion 

 of the peninsula of Lower California. A second specimen, 

 collected by Diguet at Mulege in the same portion of the 

 peninsula and figured by Mocquard, apparently belongs to 

 this species. I have seen a third specimen, collected at San 

 Xavier on the peninsula, and a fourth, found on Danzante 

 Island, in the Gulf of California. 



33. Uta mearnsi Stejneger 

 M EARNS Giant Uta 



Uta thalossma Lockington, Amer. Naturalist, 1880, p. 295. 



Uta mearnsi Stejneger, Proc. U. S. Nat. Mus., Vol. 17, 1894, p. 589 

 (type locality, Summit of Coast Range, United States and 

 Mexico boundary line, California) ; Van Denburgh, Occas. 

 Papers Cal. Acad. Sci., V, 1897, p. 64, fig.; Mocquard, Nouv. 

 Arch. Mus. Hist. Nat. Ser. 4, Vol. 1, 1899, p. 308, pi. XI, 

 figs. 1, la; Cope, Report. U. S. Nat. Mus. for 1898, 1900, p. 304, 

 fig. 37; Meek, Field Columbian Museum, Zool. Ser. Vol. VII, No. 

 1, 1905, (1906), p. 9; Ditmars, Reptile Book, 1907, p. 123; 

 Atsatt, Univ. Cal. Pubis. Zool., Vol. 12, No. 3, 1913, p. 34; 

 Grinnei,l & Camp, Univ. Cal. Pubis. Zool., Vol. 17, No. 10, 1917, 

 p. 154; Stejneger & Barbour, Check List N. Amer. Amph. Rept., 

 1917, p. 50; Stephens, Trans, San Diego Soc. Nat. Hist., Vol. Ill, 

 No. 4, 1921, p. 61; Van Denburgh & Slevin, Proc. Cal. Acad. 

 Sci., Ser. 4, Vol. XI, 1921, p. 51; Nelson, Mem. Nat. Acad. Sci., 

 Vol. XVI, 1921, p. 114; Schmidt, Amer. Mus. Novitates, No. 22, 

 1921, p. 4. 



Description. — Head considerably depressed, snout elon- 



