506 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



larger than ventrals, in 16 rows, the 6 median rows strongly keeled, 

 the next row on each side feebl}' keeled, the others smooth; 46 trans- 

 verse dorsal rows between occiput and level of vent; ventrals in 12 

 longitudial rows; limbs scarcel}' meeting when pressed against the 

 side. Color (in alcohol) above shiny black, with a purplish mother-of- 

 pearl gloss in a certain light, densely speckled with minute spots of 

 a pale greenish blue, 2 or more spots on each scale and shield; under- 

 neath bluish gray, densely spotted with black. 



Dimensions. imn. 



Total length 201 



Snout to ear-opening 17 



Snout to posterior end of occipital 15 



Greatest width of head 12 



Snout to vent 82 



Vent to tip of tail 1 19 



Axilla to groin 48 



Fore leg 21 



Hind leg 27 



Remarhs. — This new species in style of coloration strongly suggests 

 Barlssia imhrieata., but has otherwise nothing in common with it. Its 

 relationship is rather witli Gerrhonotus moreletil and G. laontlcolus., 

 but it differs from both in many important particulars besides the 

 coloration. The latter species, of which I have the type specimen 

 before me (Cat. No. 30591, U.S.N.M.), is easily distinguished b3^ its 

 nearl}^ smooth dorsal scales, only those on the lower back being 

 obscurely keeled. G. inoreletii appears to differ in the smaller dorsals 

 which form several more rows, both longitudinal and transverse, in 

 the greater number of labials, and in the lesser extent of the granular 

 space on the side of the neck. 



