23. HEMIDACTTr,TTS. 131 



16. Hemidactylus guineensis. 

 Hemidactylus guineensis, Peters, Mon. Berl, Ac. 1868, p. 640, 



" Very closely allied to H. turcicus : distinguished by the smaller 

 and more numerous tuhercles, which form twenty or twenty-two 

 longitudinal rows on the back, and by the small number of infra- 

 digital lamellae, viz. two or three under the inner digits and four or 

 five under the others. Ten or eleven upper and eight lower labials. 

 The young has three broad dark bands across the back." 



Guinea. 



17. Hemidactylus persicus. 



Hemidactylus persicus, Anderson, Proc. Zool. Soc. 1872, p. 378, fig, 2 ; 

 Blanford, Zool. E. Persia, p, 342, and Joum. As. Soc. Beng, 

 xlv, 1876, p. 18, 



Snout rather acuminate, as long as the distance between the eye 

 and the upper border of the ear-opening, once and one third the 

 diameter of the orbit ; forehead concave ; interorbital space very 

 narrow ; upper eyelid strongly fringed ; ear-opening large, obliquely 

 crescentic, the concavity being directed forwards and upwards, its 

 diameter equalling three fourths that of the eye. Body and limbs 

 moderate. Digits free, moderately dilated, inner well developed ; 

 infradigital lamellae obliquely curved ; ten lamellae under the thumb, 

 ten under the third finger, nine under the inner toe, and twelve 

 under the third toe. Snout covered with large convex granular 

 scales, largest between the eye and the nostril ; hinder part of head 

 with minute granules, and scattered ones of a larger size. Eostral 

 four times as broad as high (having fused with the anterior labial 

 on each side) ; nostril above the rostral, between the latter and 

 three nasals ; ten or eleven upper and nine lower labials ; mental 

 large, triangular, twice as long as the adjacent labial, its point 

 between two large chin -shields which are in contact behind it ; 

 a small chin-shield on each side of the large pair. Upper 

 surface of body covered with small irregular flat granules and 

 moderately large, trihedral, strongly keeled tubercles arranged in 

 fourteen or sixteen rather irregular longitudinal series ; the largest 

 tubercles measure about one fourth the diameter of the eye. 

 Abdominal scales small, smooth, rounded, imbricate. Male with a 

 short angular series of eight praeanal pores. Tail cylindrical, tapering, 

 covered above with small, irregular, imbricate smooth scales and 

 scattered pointed tubercles forming four or six longitudinal series, 

 inferiorly with a series of transversely dilated plates. Dr. Anderson 

 describes the colour as "pale yellowish brown, with six faint 

 brownish transverse narrow dorsal bands, the tubercles in these areas 

 being almost black ; a dark brown streak from the nostrils through 

 the eye above the ear, with a whitish line above it ; lips whitish." 

 The unique specimen in the coUectioti is uniform whitish (bleached?). 



Total length 149 millim. 



Head 19 „ 



Width of head 14 „ 



k2 



