CROCODILIANS, LIZARDS, AND SNAKES. 305 



deiiti(5ulati()ns indistinct. No couspicuous ditterence in width of scales 

 on back, riunp, and tail, the first mentioned much larger, their lateral 

 scales about thirty-three oblique rows from head to tail, ten for cervical 

 fold. Scales ou inside of tibia and behind arms obsoletely carinated. 

 Free portion of hind toe as long as, or eveii longer, than cephalic plates. 

 Femoral pores about thirteen. 



Color above greenish-yellow, with a series of dark transverse dorsal 

 bands, not interrupted centrally on five rows of scales, a faint light 

 lateral stripe beneath which are a few dusky blotches. Male with very 

 little blue on the chin and sides of belly and a longitudinal blackish 

 patch in point of shoulder. 



The body of this species is stout, tapering from the middle to the 

 head, which is scarcely as broad as, or not broader than, the neck. Inner 

 orbital plates completely cutting off" the large, supraorbital plates from 

 those along the middle line of the head; sometimes there is an irregular 

 indication of a smaller external series in a few plates. The cephalic 

 plates are arranged as follows, beginning with the occipital: 3, 2, 1, 1, 2, 

 o, Avith perhai)S three more to the plates surrounding the nostrils, these 

 exclusive of the plates along the lateral ridge of the head. The lateral 

 occipital plates are nearly as large as the median, Avhich is nearly or 

 quite in contact with that of the third series, separating the two of the 

 second row. The plates of the sixth series are large and nearly equal. 

 In one specimen (Cat. No. 2901?;) there is a third or median small plate 

 in the second and fifth series. 



Scales not quite so erect on the tail as in some other species. Dorsal 

 scales acute, broader than long. Those below are angular, but denticu- 

 lated and smooth. The number of rows can not be readily made out, 

 but there appear to be about forty around the body in the thickest part. 

 There are, however, but tive rows on the middle of back, in a space the 

 breadth of the head. 



The ground color of this species is a dull, light, olivaceous green 

 (sometimes yellow). On the middle of the dorsal surface is a series of 

 transverse bars, eight or nine in number, from head to above arms, and 

 continued on the tail. These are sometimes shar[)ly defined and black, 

 sometimes obsolete, and occupy five roM's of scales, covering only the 

 inner half of the outer of these. On each side of these blotches is a clear, 

 light stripe about oiui row and two half rows wide, best defined above 

 the fore legs, where the light stripe is succeeded by a dusky longitudi- 

 nal one, which in the males is sometimes strongly defined. Posterior 

 to this the dorsal blotches are continued obsoletely and narrowly across 

 on the sides. There is a black patch across the insertion of the fore leg 

 in the male. The legs are barred transversely with yellowish and dusky, 

 and in addition have various longitudinal lines of dusky on the outer 

 surface, especially on humerus and tibia. The scales beneath, too, 

 often show short (sometimes lengthened) longitudinal, well-defined 

 blackish lines, the ground color being greenish-yellow or yellowish. 



