130 REPTILES. 



Page 11. Rana hexadactyla. 



c'-d'. Adult and half-growu. Ceylon. Presented by Sir A. Smith. 



7. Adult. India. Presented by Sir A. Smith. 



m. Many half-gTO-\ni specimens. India. Presented by Sir A. Smith. 



Page 11. 7a. Rana occipitalis. (Plate XI.) 



Body with small tuliercles and short longitudinal folds ; no distinct 

 pores ; a small fold in front of the upper eyelid, another across the 

 occiput, uniting both the postei-ior angles of the eyehds ; toes of 

 moderate length, terminating in a small knob, completely webbed, 

 \\'ithout notch between ; the fouith not much longer than the third. 

 Above greenish bi'o^\Ti. marbled with darker ; a whitish streak 

 across the occiput. 



rt. Fine female specimen. West Africa. From Mr. Fraser's Col- 

 lection. 

 b-d. Adult females. Africa. Presented by Sir A. Smith. 

 e-g. Adult males. Africa. Presented by Sir A. Smith. 

 h-7c. Adult females, (iambia. Presented by Sii- A. Smith. 

 1. Fine female specimen. Africa. Presented by Sir A. Smith. 



Deserljitlon. — Tliis species is in habit somewhat similar to Rana 

 tigrina. The forehead is flat ; the canthus rostralis indistinct ; the 

 sides of the head obhque ; the muzzle rounded, of moderate length, 

 in the male rather narrower than in the female. The nosti'ils are 

 situated near the end of the muzzle, and opened towards the upper 

 sui-face. The eyes are of moderate size, prominent above the level 

 of the crown, and with a rather narrow space between ; in front and 

 behind the eyelid a fold, as described above. The tympanum is 

 roimd, coloured, and not quite so large as the eye. The inner nostrils 

 and eustachian tubes are nearly equal and of moderate size ; the 

 vomerine teeth are arranged in two series, convergent posteriorly, 

 and each beginning from the front edge of the inner nostril. The 

 lower jaw is provided ■with two bony prominences, but they are low 

 and covered "uith the mucosa, and correspond to two grooves in the 

 upper jaw. There are two external vocal sacs in the male, each 

 with a small round opening near the angle of the mouth. The body 

 and the extremities are rather stout, the former covered with short 

 folds, and on the sides with numerous tubercles ; the belly is smooth. 

 The toes are of moderate length, rather short ; the third longer than 

 the fifth ; all terminate in small knobs, and are connected by a 

 web, which is not notched, and reaches to the extreme end of the 

 toe ; there is even a cutaneous fold extended along the outer edges 

 of the fii-st and fifth toe, and another fold runs along the tarsal edge. 

 Metatarsus mth only one oblong tubercle. The third finger is the 

 longest, and fringed along the inner edge ; the first and foiu'th are 

 equal in length ; the second is the shortest, and fiinged on both edges. 

 The two inner fingers terminate in small knobs, the two outer 

 ones are rather pointed ; in the male the base of the first is very 



