1872.] F. Stoliczka — On Indian Lizards. 91 



and the lower side of adults often with a distinct yellow tinge, particularly on 

 the lower side of the thighs. One of the largest specimens measures 5f, 

 another 5^ inches. 



Gymnops is distinguished from all known species of Opliiops by the 

 peculiar small size of smooth scales, being almost granular on the neck ; they 

 altogether resemble those of JEremias. It further differs from OpMops by 

 having one instead of two postnasals, this is, however, a character not of 

 great generic value, as already observed by Mr. Blanford, when suggesting 

 the separation of the present species into a special genus or subgenus. 



ACANTHODACTYLUS CANTORIS (I. R., p. 73). 



I received numerous specimens of this species from the neighbourhood 

 of Agra, Ambala and Ludiana, together with Opliiops Jerdoni, both of 

 which have also been found associated by Dr. Jerdon (Proc. A. S. B., Feb. 

 1870, p. 71) in the country a little westward in the Panjab. 



The specimens measure between 4 and9 inches, the length of the body being 

 If to 2f inch. When young they are usually marked with 8 longitudinal black 

 stripes, separated by white ones of equal width. Four of these stripes are on the 

 upper side of the body, the two inner coalescing into one before they reach the 

 middle of the back, while the two outer unite on the anterior part of the tail. 

 One dark band runs on the upper edge of the sides of the body, and one connects 

 the ear with the groin. In more adult specimens the dark bands become 

 gradually less distinct and are first dissolved into spots, until they gradually 

 quite disappear ; and the same is more or less the case with the white bands 

 and other spots. The general colour changes from brownish to pearly grey, 

 and there is always a more or less distinct purplish irridescent lustre trace- 

 able on the scales. This is particularly clearly seen in the more uniform 

 coloured adult specimens, which often shew an indistinct reticulation of a dull 

 reddish tinge on the upper side of the neck and back. Limbs above white 

 spotted, top and sides of head dark spotted or marbled ; the dark spots dis- 

 appearing with age ; below uniform white or greenish white. I have to 

 note three points in which nearly all the specimens I examined differ from 

 the type described by Dr. Grunther : — 



1st. — There are always 3 or 4 scales at the front edge of the opening of 

 the ear, slightly projecting into its space, unless the edge be accidentally 

 turned inwards. 



2nd. — There are very often 14 longitudinal, along the median dorsal line 

 convergent, rows of enlarged, keeled scales across the middle of the back, 

 and the adjoining 2 or 3 rows on either side are equally large, but beyond 

 this the size considerably diminishes. Across the middle of the belly there 

 are 14-16 enlarged smooth scales, 10 being in a row on the flat lower sur- 

 face of the belly, and the remainder at the side of it. 



