38 



A SYNOPSIS OF THE SPECIES OF 



Cnemidoplwrus tessellatus muUiscutatus Cope. 



Cnemidophorus tessellatus tigris B. & G., Cope, Proceeds. TJ. S. Nat. Museum, 1889, p. 147 ; not of Baird and Girard. 



Represented in the U. S. N^ational Museum by four specimens of medium size. 

 The muzzle is rather acute, and moderately elongate. The extended hind le<^ reaches 

 to the orbit. In two larger specimens there are six plates of the infralabial row, and 

 in two smaller but five. Four large anals, two on the middle line in front of the 

 marginal pair. These four are surrounded by a series of smaller plates as far as the 

 vent. Scales of the tail with the keels slightly oblique throughout. The peculiarity 

 of the subspecies is seen in the large number of rows of brachial scales (7-8 rows), 

 and femoral scales (8-9 rows\ The former are not quite constant, however, one of 

 the smaller specimens having but six rows. Femoral pores 20-22. The scales are 

 smaller than is usual in C. tessellatus, measuring .33 and .25 mm. in diameter. 



The color is generally of the C. tessellatus tessellatus type, but the black ground 

 color is more persistent. The light stripes are most broken up posteriorly, and the 

 communicating pale cross-spots are widest and most numerous. On the sides the 

 pale spots are of irregular shapes, being both longitudinal and transverse on a black 

 ground. Belly black and light olive in varying proportions. Gular region and collar 

 with transverse black spots or bands. Fore limbs black with light olive spots ; hind 

 limbs brown with blackish reticulation. Tail browii above, black-spotted below. 



Measurements. M. 



Total length , 275 



Length to meatus auditorius 021 



Length to collar 030 



Length to vent ^ 085 



Length of fore limb 033 



Length of hind limb 065 



Length of hind foot 035 



Cnemidophorus tessellatus muUiscutatus Cope. 



Catalogue Number. 



Number Specimens. 



Locality. 



Whence derived.. 



15,160 

 1 

 2 

 3 



1 

 1 

 1 



1 



1 



Cerros Island, west coast of 

 Lower California. 



U. S. Fish Commission Steamer 

 Albatross. 



