130 ON THE GECKOS OF NEW CALEDONIA. [Mar. 6, 



between the eye and the ear-opening, about once and two fifths the 

 diameter of the orbit : forehead concave ; ear-opening small, roundish. 

 Body short, depressed ; limbs moderate. Head covered with very 

 small granular scales ; rnstral subquadrangular, not twice as broad as 

 high, with median division superiorly ; nostril pierced between the 

 rostral, the first upper labial, two small nasals, and two or three 

 granules ; seven or eight upper, and as many lower labials ; mental 

 very large, triangular, pentagonal or trapezoid, extending considerably 

 beyond the adjacent labials, generally with a pair of chin-shields 

 posteriorly ; no otiier chin-shields. Upper surfaces covered with 

 very small granules ; back with 16 to 20 longitudinal series of round, 

 snbconical, distinctly ribbed tubercles ; these series regular, equidis- 

 tant, the tubercles generally very close together, forming lines ; hind 

 limbs with similar irregularly scattered tubercles. Gular scales 

 minute, granular ; abdominal scales very small, imbricate, keeled. 

 Males generally with a very short, A-shaped series of praeanal pores, 

 seven or eight altogether. Tail cylindrical, tapering, generally with 

 very small uniform keeled scales, occasionally intermixed with large 

 tubercles. Brown, lighter beneath ; back and limbs with more or 

 less distinct darker transverse markings ; generally a dark streak from 

 the eye to the ear-opening. 



millim. 



Total length 125 



Head 18 



Width of head 12 



Body 42 



Fore limb 19 



Hind hmb 29 



Tail 65 



This Gecko occurrs from New Guinea and Cape York, throughout 

 the Pacific Islands to New Zealand. The British Museum possesses 

 a specimen from the Loyalty Islands. 



EXPLAJJ^ATION OF THE PLATES. 



Plate XXI. 



Fig. 1. Rhacodactylm chahoua, upper view of head. 



1 a, , profile of liead. 



1 /). , lower view of head. 



1 c. , lower view of posterior part of body, thighs, and tail. 



1 d. , lower view of foot. 



2. trachyrhynchiis, upper view of head. 



2 a. , profile of head. 



2 b. , lower view of head. 



2 c. ■ , lower view of posterior part of body, thighs, and base of 



tail. 



•2d. , lower \iew of foot. 



All the figures are of the natural size. 



Plate XXII. 



Fig. 1. Hemidactyliis garnoti, lower view of foot, magnified 2 diameters. 

 1 a. , lateral view of fourth toe, magniflied 2 diam. 



