38 



retractile claw. Body covered above with granular scales, beneath 

 with cycloid imbricate scales. Pupil vertical. Males with femoral 

 or praeanal pores. 



Distribution. The East-Indies; Australia; islands of the Indian 

 and Pacific Oceans; Mexico. 



Key to the Indo-Australian species. 



A. Digital lamellae divided by a median groove (fig. 26). 



I. A fold of the skin bordering the hind limb 

 posteriorly. 



a. A distinct fold on each side between axilla 



and groin. /^ 



1. Tail fiat; 7 — 8 lamellae under the median 



toes, the terminal lamella undivided i. G. bcebci p. 39. 



2. Tail flat; 12 — 13 lamellae under the median 



toes, 4 or 5 proximal ones undivided. . . . z. G. lainpei p. 39. — 



3. Tail round; 15 lamellae under the median 



toes 3. <^. interstitialis p. 40. >" 



b. No fold along the side of the body. 



1. Inner pair of chin-shields very large; rostral 



quadrangular a,. G. imitilata p. 41. 



2. Chin-shields shorter; rostral horseshoe-shaped. 5. G. baliola p. 42.- 



II. Hind limb without cutaneous fold. Digits free 



or with a rudiment of web 6. G. varicgata p. 43. 



B. Digital lamellae undivided (fig. 27). 



a. Digits webbed at the base; tail round; 25 — 46 



femoral pores 1. G. occanica p. 44. 



b. Digits half-webbed; tail with lateral edge; 34 — 35 



femoral pores 8. (7. marginata p. 44. 



c. Digits webbed at the base ; a fold bordering the 

 fore limb anteriorly; tail round; 50 — 70 femoral 



pores 9. (7. vorax p. 45. 



Fig. 26. Gchyra mutilata (Wiegm.). Fig. 27. Gchyra oceanica (Less.). 

 Fore limb X 3- ^^"^^ '"^^^ X 9- 



