19. VERTICARIA 575 



Snout to interparietal 



plate 10 12 12 12 12>1 13 



Width of head 7 9 9 9 10 10 



Fore limb 17 21 2\ l / 2 22 21 24 



Hind limb 34 42 43 44 44 47 



Base of fifth to end of 



fourth toe 16 20 21 20 21 21 



Distribution. Carmen Island, Gulf of California, 

 Mexico. 



Variation. The supraoculars are 4-4 in one, 4-3 in one, 

 and 3-3 in 74 specimens. The second supraocular is com- 

 pletely separated from the median head plates by granules 

 in two, partly separated in 3 1 specimens. The third is com- 

 pletely separated in 13, partly separated in 30. The scales 

 on the collar are largest at its edge in two, smaller at its edge 

 in 74 specimens. The dorsal line in all specimens is single 

 with an anterior fork on the neck. This fork varies in length 

 from one to 12 millimeters. There is no posterior fork. 



Remarks. This species is most closely related to the 

 Verticaria of San Jose Island from which it differs chiefly in 

 the much lighter and redder dorsal and lateral coloration and 

 the much less evident caudal stripes. 



129. Verticaria picta Van Denburgh & Slevin 



MONSERRATE ISLAND VERTICARIA 



Verticaria picta VAN DENBURGH & SLEVIN, Proc. Cal. Acad. Sci., Ser. 

 4, Vol. XI, No. 6, 1921, p. 98 (type locality, Monserrate Island, 

 Gulf of California, Mexico). 



Description. Nostrils opening in large anterior nasal 

 plates which meet on top of snout. Posterior nasal forming 



