52 PROCEEDINGS OP THE NATIONAL MUSEUM vol.74 



ment when the gill region and sides are reached. Area around the 

 mouth and an extension backward on each side martius yellow. 

 Heavily speckled on under side of developing hind legs or femur 

 when two legged stage is well started. p:#: V' 



Tail. — Lower edge of muscular part for the basal one-half a line 

 of martius yellow. The upper edge or rim of muscular part apricot 

 buff to apricot orange or rufous to ferruginous. This color extends 

 on to the top of the body and gives it the same color dorsally as 

 upper musculature. The middle of the muscular part is with a 

 prominent sharply defined band of chestnut brown or black at the 

 basal half or two-fifths of the tail and hazel or cinnamon rufous 

 onward to tip. This dark middle tail stripe extends onto the body 

 in transforming individuals, becomes the dark stripe either side of 

 the median dorsal stripe. From mature tadpole to transformation 

 the three striped (light, dark, light) arrangement obtains, the lower 

 stripe being least conspicuous. The rim of the tail crests is with 

 large blotches. The interval between the crest rim and the muscu- 

 lature is translucent and without spots or dots. 



Iris black, citrine drab, or deep olive, finely speckled with empire 

 yellow or bittersweet orange. 



In alcohol the broad brown tail band foUows on to body to back 

 of the eye. Above brown band is a clear white edge which extends 

 on to the body and around the eye and then forward. Below 

 brown band is a light band. 



General appearance. — Tadpole quite small (23 mm.), full, and deep 

 bodied (in general appearance somewhat like H. crucifer). Tail 

 quite long, tail tip sharply acute or even acuminate. The dorsal 

 and ventral crests about equal. The dorsal crest not deeper than 

 tail musculature and extending on to the body to the vertical half- 

 way between eye and the spiracle. Spiracles sinistral, directed back- 

 ward and upward, far below lateral axis, the spiracular opening 

 prominent, elliptical, or round. Eye on the lateral axis, in dorsal aspect 

 on the outline and therefore visible in the ventral aspect as well. 

 Anus dextral, opening on a level with the lower edge of the ventral 

 crest. Muciferous crypts not distinct. 



Mouth parts. — Teeth |-. Upper labium fringed with a continuous 

 row of labial teeth; the papillae extend above and inwards beyond 

 the end of the labial, fringe for about two-ninths to one-fourth of the 

 length of the upper fringe. The horny beak is contained in upper 

 fringe 2.0 times in the upper fringe. The median space between the 

 second lateral upper labial rows of teeth long, three to four times 

 the length of either lateral row. Inner papUlae sparse or absent on 

 upper labium and opposite the ends of horny beak. At ends of the 

 second lower labial tooth row two or three rows. Sometimes on sides 

 two rows of labial papillae from upper fringe down. The papillae do 



