482 PROCEEDINGS OF THE ACADEMY OP 



tail very strongly keeled ; copper colored above, whitish or yellowish white 

 beneath ; throat often orange, and in some specimens a black spot over the 

 shoulder. Length of head and body 1 inch 8 lines. Seventeen specimens. 



Daconuea Wagler, Wiegmann. 

 Daconuka bivittata nob. 



Spec. char. Head covered with polygonal plates of unequal size ; color 

 brownish above, with two lateral white vittae, bordered with black, one on 

 each side, commencing behind the eyes, and extending the whole length of 

 the body, as far as the base of the tail ; under parts white. Total length 4 

 inches ; of tail, 1 inch 4 lines. 



Description. Seven supra labials, nostril in a single scale ; plates upon 

 front and muzzle unicarinate ; superciliary wide, separated by two rows of 

 scales, a single row between former and occipital scale ; a single row of scales 

 much larger than the rest, commencing at about three liries from the occiput, 

 and extending along the median line of the back and tail above ; scales upon 

 back larger than upon sides ; those of the belly very distinctly carinated ; a 

 gular fold ; tympanum quite distinct ; no femoral or anal pores ; scales upon 

 under part of tail strongly carinated ; extremities slender ; third and fourth 

 fingers of nearly equal length ; fourth toe much the longest ; fingers and toes 

 slender, not dilated, inner margin serrated ; fingers and toes 5 5 ; tail very 

 long, slender, tapering to a point. 



Coloration. General color olive above, somewhat darker upon the sides ; 

 with two narrow white vittse, bordered with black, one on each side, com- 

 mencing behind the eye and extending the whole length of the body, being 

 lost upon the base of the tail ; extremities indistinctly barred with brown 

 above ; under parts whitish. 



Habitat. Nicaragua. A single specimen. 



Scelopokus Weigm. 

 Scelopoeus scalakis Weigm. 

 Twenty-six specimens (sixteen young). 



Teid.e. 



Cnemidophoeus. 



Cxemidophorus decemilineatcs nob. 



Spec. char. Nostril in the posterior margin of the naso-rostral plate ; 

 color grey above, with ten white lines, five on each side of the back ; eight 

 rows of abdominal scales. Total length 7i inches ; tail 4J inches. 



Description. The nostril opens in the posterior edge of the naso-rostral 

 plate ; five superior labials ; a single row of large transverse scales on 

 the anterior surface of the forearm ; twenty-two femoral pores in the single 

 specimen. The ground color above is greyish or olive ; in the youngest 

 specimens the intermediate space between the four upper white lines, jet 

 black, forming three distinct jet black bands on each side ; these jet 

 black bands are more distinct in the youngest specimens ; in the oldest the 

 upper surface is of an uniform olive color, darker upon the sides ; the entire 

 surface of the abdomen, and the greater part of the under surface of the 

 thighs, jet black ; anterior part of forearms white spotted ; these spots quite 

 small, and by no means so distinct or near so large as inC. lemniscatus; 

 in the younger specimens, presenting the form of vermicnlations. 



Dimensions. Length of head 10 lines ; of neck and body to vent, 2 inches 

 1 line ; of tail 4 inches. 



Habitat. Nicaragua. Seventeen specimens. 



[Oct. 



