41. ETJRYDAOTTLTJS. 42. ^LTJRONTX. 193 



region, measuring nearly twice the distance between the eye and 

 the ear-opening or once and three fourths the diameter of the orbit ; 

 ear-opening minute, horizontal. Body slightly compressed, the 

 back keeled. Limbs short. Scales of upper surfaces large, separated 

 by intervals forming reticulated lines, much like crocodile-skin ; the 

 shields on the head larger, subsymmetrically arranged. Eostral twice 

 as broad as high, with distinct cleft above ; nostril pierced between 

 the rostral, the first labial, and two nasals ; ten upper and nine 

 lower labials ; mental small, triangular, the adjacent labials meeting 

 behind ; a few irregular chin-shields. Throat covered with small 

 granules ; two strong transverse and two longitudinal folds. Belly 

 covered with rather large flat granules. [Male with a triangular 

 patch of about fifty praeanal pores.] Tail cylindrical, covered with 

 squarish juxtaposed scales arranged in verticils. Upper surfaces 

 reddish yellow ; the interspaces between the scales forming blackish 

 reticulated lines ; lower surfaces uniform whitish. 



Total length 91 millim. 



Head 15 „ 



Width of head 9 „ 



Body 39 „ 



Fore limb 14 „ 



Hind limb 18 „ 



Tail 37 „ 



New Caledonia. 



42. .ffiLTJRONYX. 



Platydactylus, part., Jkim-. ^ Bihr. Erp. Gen. iii. p. 290. 

 Ailuronyx, Fitzing. Syst. JRept. p. 98. 

 Theoonyx, Gray, Cat. p. 159. 



Digits strongly dilated, free, with undivided lamellae below, all 

 clawed ; claws retractile, ensheathed, the sheath opening inferiorly 

 and laterally, the three inner claws being turned inwards, the two 

 outer outwards. Upper surfaces covered with granular scales; 

 belly covered with cycloid imbricated scales or juxtaposed granules. 

 Pupil vertical. Males with prseanal pores. 



Seychelles; Madagascar. 



1. .ffiluronyx seychellensis. 



Theconyx seychellensis, Graj/, Cat. p. 159. 

 Platydactylus seychellensis, Bum. 8f Bihr. iii. p. 310, pi. xxviii. 



fig. 1 ; A. Bum. Arch. Mus. viii. pi. xvin. fig. 5. 

 Thecodactylua (Ailuronyx) seycheUiensis, Fitzing. Syst. Rept. p. 98. 



Head longer than broad, with swollen cheeks, not distinct from 

 neck ; snout conical, considerably longer than the distance from the 

 eye to the ear-opening, once and three fourths the diameter of the 



