EANA. 285 



mouth. Spiraculum on the left side, directed upwards 

 and backwards, a little nearer the end of the snout 

 than the anus, visible from above and from below. 

 Anus opening on the right side, close to the lower 

 eds^e of the subcaudal crest. Tail twice and three- 

 fourths to four times as long as deep, acutely pointed ; 

 upper crest convex, a little deeper than the lower, not 

 extending far upon the back ; the depth of the mus- 

 cular portion at its base about half the greatest total 

 depth. 



Beak very broadly edged with black, sometimes 

 almost entirely black. Sides and lower edge of the 

 lip bordered with papillae, which usually stand in two 

 rows ; upper lip with a long series of fine teeth, 

 followed on each side by a short series ; three series 

 of teeth in the lower lip, the two outer uninterrupted, 

 the third also continuous or narrowly interrupted, the 

 outermost only half to two-thirds as long as the 

 others. 



The muciferous crypts are pretty distinct on the 

 head, where they form two series, extending from the 

 end of the snout to the upper borders of the eyes, 

 passing between the nostrils. A pair of dorsal lines are 

 usually distinguishable on each side of the back, close 

 together in front, diverging posteriorly ; these lines in 

 the advanced tadpole coalesce to form the dorso-lateral 

 fold of the perfect animal. 



Olive or greyish-olive above, speckled with brown ; 

 sides with silvery or pale golden spots; belly white; 

 throat pinkish, with mother-of-pearl coloured spots ; 

 tail pale greyish, closely spotted, dotted, or vermicu- 

 lated with grey or blackish ; the muscular portion of 

 the tail yellowish, often with three blackish stripes on 

 its basal third. With advancing aofe, when the hind 

 limbs are approaching their full development, the 

 back assumes a more decidedly greenish colour, and 

 the pale green vertebral stripe, if it is to exist, makes 

 its appearance. 



The largest tadpoles of the typical form, collected 



