154 GECKONmiB. 



o. $. Loyalty Islands. Sir G. Grey [P.J. 



b. j. Erromango. 



c-d.ci2- Fiji Islands. J. Macgillivray, Esq. [C.]. 



e-f. J- & her. Norfolk Island. F. N. Rayner, Esq. [0.]. 



28. PEEOCHIRUS. 



Digits strongly dilated, sHgMly webbed, inferiorly with transverse 

 lamellae, the anterior of which are divided by a median groove, with 

 free, slender, compressed, clawed phalanges raising from within the 

 extremity of the dilated portion ; inner finger rudimentary, clawless ; 

 inner toe with distinct attached clawed phalange. Body covered 

 above with uniform granular scales, inferiorly with imbricated or 

 juxtaposed scales. Pupil vertical. Males with or without prseanal 

 or femoral pores. 



Philippines, Carolines, and New Hebrides. 



Synopsis of the Species. 



I. Rostral higher than broad 1. ateles, p. 154. 



II. Eostral broader than high. 



A. Abdominal scales subhesagonal, slightly imbricate ; tail as 



broad as the body. 



Males with 10 prseanal pores ; no femoral 



pores 2. guentheri, p. 155. 



Male with 4 prseanal pores ; no femoral pores ; 



head and body very much depressed .... 3. depressus, p. 155. 

 Male with a series of 60 femoral pores ; size 



very large 4. scuiellatus, p. 156. 



B. Abdominal scales granular, juxta- 



posed; tail much narrower than the 



body 5. articulatus, p. 156. 



1. PerocMrus ateles. 



Hemidactylus ateles, A. Bum. Arch. Mus. viii. p. 426, pi. viii. fig. 9. 



Head conical, not distinct from neck ; eyes moderate. Twelve 

 upper labials on each side of the rostral, which is higher than broad 

 and extends on the upper part of the snout, the extremity of which 

 is rather acute. Nostrils large. Mental narrow, triangular. En- 

 larged scutes on the chin, some of which are irregularly arranged in 

 rows along the infralabials. Tail depressed, the borders finely den- 

 ticulated, covered with granulations same above and beneath and 

 arranged in regular rings. No femoral pores (?). Brownish grey, 

 darker on the tail, the borders of which, above and beneath, are of 

 a rather vivid brown. Total length 150 miUim., tail 70. 



Zamboanga, Philippines. 



