124 OEOKONID^. 



forehead concave; ear-opening very small, oblique. Body and 

 limbs moderate. Digits webbed at the base, moderately dilated, 

 inner well developed ; infradigital lamellae very numerous, oblique ; 

 ten under the inner digits, eleven under the fourth finger, and 

 thirteen under the fourth toe. Head covered with minute granules, 

 largest on the snout, intermixed on the supraorbital, occipital, 

 and temporal regions with larger round tubercles ; rostral four- 

 sided, nearly twice as broad as high, with median cleft above ; 

 nostril pierced between the rostral, the first labial, a large supero- 

 nasal, and several minute granules ; twelve or thirteen upper 

 and ten lower labials ; mental large, triangular, its posterior 

 angle truncate and in contact with a small median chin-shield ; 

 four other smaU chin-shields. Upper surface of body minutely 

 granular, with numerous small convex tubercles scattered irre- 

 gularly ; on each side of the belly a series of long, spine-like 

 scales. Abdominal scales very small, scarcely imbricate. Male 

 with a curved series of eight praeanal pores. Tail quadrangular, 

 minutely scaled, the ridges with projecting spinous tubercles. Brown, 

 lighter inferiorly ; a dark spot on the centre of the nape ; a light 

 streak on the side of the head, passing through the eye ; some 

 rather indistinct lighter mottlings on the back ; a round yellow spot 

 on the hind part of the thigh, close to the root of the tail ; latter 

 with darker and lighter annuli. 



Total length 114 miUim. 



Head , 16 „ 



Width of head 11-5 „ 



Body 42 „ 



Fore limb 20 „ 



Hind limb 25 „ 



Tail 56 „ 



Gaboon. 



a. cJ. Gaboon. (Type.) 



9. Hemidactylns fasciatus. (Plate XI. fig. 4.) 



Hemidactylus fasciatus, Gray, Cat. p. 154. 

 Leiurus omatus. Gray, I. c. p. 157. 

 Hemidactylus formosus, Hallow. Proc. Ac. Philad. 1856, p. 148. 



Snout slightly longer than the distance between the eye and the 

 ear-opening, once and one fourth the diameter of the orbit ; fore- 

 head concave ; ear-opening suboval, oblique, half or three fifths the 

 diameter of the eye. Body and limbs moderate. Digits distinctly 

 webbed at the base, moderately dilated, inner well developed ; six 

 to eight lamella) under the inner digits, and nine or ten under the 

 median ones. Snout covered with small convex granules ; hinder 

 part of head with minute granules intermixed with small round 

 tubercles ; rostral four-sided, not twice as broad as high, with 

 median cleft above ; nostril pierced between the rostral, the first 

 labial, and three or four nasals ; nine to eleven upper and eight to 

 ten lower labials ; mental large, triangular or pentagonal ; two 



