II. No membrane on the side of the body; tail 

 depressed ; digits free. 



a. The width of the head equals twice the distance 

 from the end of the snout to the orbit ; throat 

 covered with small flat granules ; each annulus 

 of the tail with 5 6 rows of scales above, 



3 beneath 5. G. verticillattis p. 56. 



b. The width of the head equals less than twice 

 the distance from the end of the snout to 

 the orbit; throat minutely granulate; each 

 annulus of the tail with 8 II rows of 



scales above 6. G. stentor p. 57. 



I. Gecko vittatus Houttuyn. 



Gekko vittatus, Houttuyn, Verh. Genootsch. Vlissingen IX 1782, p. 325. 

 Gecko vittatus, Boulenger, Cat. Liz. I 1885, p. 185 (s. syn.). 



Head large, oviform ; snout longer than the distance between 

 the eye and the ear-opening, about one 

 time and two thirds the diameter of the 

 orbit; forehead concave, ear-opening 

 oval, slightly oblique, its greatest dia- 

 meter half that of the orbit. Head 

 covered with rather large granules, 

 largest on the snout. Rostral very large, 

 twice as broad as high ; nostril bordered 

 by the rostral, the first labial and three 

 nasals (fig. 33^). Twelve to sixteen 

 upper and ten to fourteen lower labials; 

 mental small, triangular, no chin-shields, 

 the chin covered with polygonal scales. 

 Body long and slender; back with very 

 small juxtaposed granules, intermixed 

 with slightly enlarged smooth tubercles; 

 throat granular with enlarged tubercles. 

 Ventral scales rather large, imbricate. 

 Male with 14 58 femoral pores in an 

 angular series. Tail cylindrical, depress- 

 ed, annulate, covered above with very 

 small flat granular scales, intermixed 

 with round flat tubercles, below with 

 larger scales; each annulus is composed of 12 14 rows of 



Fig- 33- Nostrils with sur- 

 rounding shields. 



a. Gecko vtrticillatus Laur.; 



b. G. stentor (Cant.); 



c. G. monarchus (D. B.) ; 



d. G. vittatus Houtt. 



