362 GECKOTID^. 



for some time, and associated witli a species of beetle which lives in the 

 same situation in small holes. Both this species and Gijmnodactylus 

 petrensis frequent houses after dusk. 



Gymnodactylus petrensis, Sp. Nov. 



Plate 

 ■ E-ostral grooved, broader than high, 10-12 upper, and 8-10 lower 

 labials. Nostril between the rostral, first labial and three shields 

 slightly larger than the adjoining ones. One pair of chin shield in 

 contact with the mental and the first and second labials. An 

 enlarged shield behind it in contact with and between the second and 

 third labials ; a row of smaller ones along the edges of the others. 

 Upper eyelid well developed, covered with gi-anular scales. Pupil 

 vertical ; muzzle, or the space between the rostral and posterior edge of 

 the orbits, covered with coarse, rather convex scales, about half the size 

 of the small ear opening. Occipital portion of the head with granular 

 scales, interspersed with large convex tubercles. Back covered with 

 small granular scales, and sharply keeled trihedral tubercles equal to 

 the ear opening in size, and arranged in 12 longitudinal series in the 

 middle, besides a lougitudinal series of much smaller keeled trihedral 

 tubercles along the vertebral area between the fore and hind limbs. The 

 number of tubercles between the hind limbs is six. The tail is verti- 

 cillate, and each ring bears on each side three sharply-pointed keeled 

 trihedral tubercles, larger than those on the back on 10-12 verticels. 

 The tubercles diminisia in size after the 10th or 12th verticel to within 

 half an inch of the tip, where the verticels are lost and replaced by 

 keeled imbricate scales. No distinct sub-caudals, but there are a few 

 large bifid scales irregularly arranged. A pair of tubercles on each 

 side of the sacral region. The fore and hind limbs are covered on the 

 outer side with imbricate, keeled scales, and studded with trihedral 

 tubercles ; their inner side with flat scales, regularly arranged in longi- 

 tudinal rows, and the palmar surface bears a few large round tubercles. 

 The fore leg laid forward reaches a little beyond the end of the snout, 

 and the hind leg to beyond the shoulder and nearly to the ear opening. 

 Scales on the chin small and granular ; on the abdomen three times 

 the size of those on the chin, and arranged across the middle in 34-35 

 longitudinal series, irrespective of the 5-6 rows of granular scales 

 between the lowest trihedral tubercle and the distinctly larger scales of 

 the beginning of those on the sides of the abdomen. Pree-anal pores 4 

 in a straight line. In two out of seventeen specimens there is an ill- 

 defined fifth one. 



Colour in life brown, with a pinkish tinge, which is lost in spirit. 

 Five imperfect dusky transverse bands on the back and 11-12 on 

 the tail. Looked at with the naked eye each band on the back appears 

 to be divided into throe dusky spots in an angular series, the spot in 

 the centre being behind the two on the sides. 



Length. — 3 to 35 inches, of which the tail is from I '75 to 2 inches. 



Hah. — Sind. 



Stenodactylus, Guvier, D. et B. 



" Toes all clawed, cylindrical, pointed at the end^ toothed, the side with 



