178 eECKONiDa;. 



General proportions of R. traehyrhynchus. Head o-viform ; snout 

 longer than the distance between the orbit and the ear-opening, 

 once and a half the diameter of the orbit ; forehead concave ; ear- 

 opening narrow, horizontal. Body and limbs moderately elongate, 

 not much depressed ; digits broadly dilated, not very unequal, their 

 border very distinctly denticulated, half- webbed; the web very 

 short, though distinct, between the two outer toes ; limbs bordered 

 by cutaneous folds, most developed on the anterior side of the fore 

 limbs and on the posterior side of the hind limbs ; other cutaneous 

 folds below the rami mandibulse, on the sides of the neck, and from 

 axilla to groin ; the latter feeble ; throat with irregular cross folds. 

 Upper surfaces covered with very small equal granular scales, scarcely 

 larger on the snout ; gular scales minute, granular ; abdominal 

 scales very small, flat, juxtaposed. Eostral twice as broad as high ; 

 nostril pierced between the rostral, the first upper labial, and six or 

 seven small nasals ; thirteen or fourteen upper and twelve or thirteen 

 lower labials ; mental elongate wedge-shaped, as long as the adjacent 

 labials, which it separates ; no regular chin-shields, but a few larger 

 scales passing gradually into the minute granules of the throat. 

 Male with three short series of femoral pores on each side ; these 

 do not extend beyond the inner half of the thighs, and are separated 

 from the corresponding series on the other side ; altogether seventy- 

 nine pores. Grey above, whitish beneath, marbled with grey, forming 

 transverse bars on the belly. 



Head 33 miUim. 



Width of head 22 „ 



Body 91 „ 



Fore limb 38 „ 



Hind limb 51 „ 



New Caledonia. 



4. Rhacodactylus traehyrhynchus. 



Platydactylus duvaucelii, {non D. Sf £.') Bavay, Cat. Sept. N. CaUd. 



p. 6. 

 Rhacodactylus traehyrhynchus, Socage, Jorn. 8c. Lisb. iv. 1873, 



p. 203 ; Bouleng. Proc. Zool. Soc. 1883, p. 126, pi. xxi. fig. 2. 

 Chameleonurus trachycephalus, Bouleng. Bull. Soc. Zool. France, 



1878, p. 68, pi. ii. 

 Platydactylus (Rhacodactylus) chahoua, {non Bavay) Sauvage, Bull. 



Soc. Philom. (7) iii. 1878, p. 66. 

 Chameleonurus chahoua, (non Bavay) Bouleng. Bull. Soc. Zool. 



France, 1879, p. 142 ; Socage, Jorn. Sc. Lisb. xxx. 1881, p. 126. 



Head oviform ; snout longer than the distance between the orbit 

 and the ear-opening, once and two thirds the diameter of the orbit ; 

 ear-opening narrow, horizontal. Body and limbs moderately 

 elongate, rather depressed ; digits broadly dilated, not very unequal, 

 with a distinct rudiment of web, absent between the two outer toes. 

 Sides of neck with irregular folds. Snout and interorbital space 



