60 MB. a. A. BOULENGBH ON THE REPTILES 



S. ?. 



millim. miUim. 



Front snout to vent 38 54 



Head 13 17 



Width of head 13-5 19 



Fore limb 25 34 



Hand 10 14 



Hind limb 61 93 



Foot 15 23 



Four specimens, one male and three females, were collected by Mr. Guppy in 

 Treasury Island. 



9. Hyla thesaurensis. (Plate XI. fig. 4.) 

 Hyla thesaurensis, Peters, Mon. Berl. Ac. 1877, p. 421. 



A specimen was collected in Treasury Island by Mr. Guppy, which agrees well with 

 Peters's description, except that the fingers are distinctly webbed at the base while 

 Peters describes them as free. I have, however, no hesitation in referring the specimen 

 to H^la thesaurensis. Another question is whether this form and the preceding are 

 specifically distinct from each other or only colour varieties ; I am not able to decide 

 this point at present for want of material, but strongly incline to regard them only 

 as varieties. 



The unique specimen appears to be a half-grown female. Its coloration and dimen- 

 sions are as follows : — The head and back are blackish brown ; a broad white vertebral 

 line extends from the fronto-parietal fontanella to the extremity of the coccyx ; another 

 one on each side, commencing on the border of the upper eyelid ; a short white streak 

 on the end of the snout ; a curved transverse white streak between the eyes, and a 

 curved white streak on the side of the head, from below the nostril to the angle of the 

 mouth. The limbs, are light olive above, and the lower surfaces white. 



From snout to vent 31 millim. 



Head 10 „ 



Width of head 11 „ 



Fore limb 19 ., 



Hand 8 „ 



Hind limb 51 „ 



Foot 11-5 „ 



