203 



tail i '/■> to 2 times the length of the body, 3 to 4 times as 

 long as deep. Nostril about equally distant from the eye and 

 the tip of the snout; eyes superior, in the middle between 

 tip of snout and spiraculum, or a little nearer to the first; the 

 distance between them equal to that between the nostrils and 

 a little smaller than the width of the mouth (including the 

 lips); spiraculum sinistral, directed upwards and backwards, 

 visible from above and from below, nearer to the posterior end 

 of the body than to the tip of the snout; vent dextral, close to 

 the lower border of the subcaudal crest. Tip of tail rounded ; 

 the upper crest higher than the lower one, and extending 

 on to base of tail. 



Mouth ventral, with papillae along the entire lower border 

 and the sides of the lips; jaws edged with black; series of 

 teeth i 1 1 / 1 2 1 to 3 ' 3 / * 2 ' , the rows of the lower lip nearly 

 equal in length (the outer one but little shorter), the inner 

 one very slightly, sometimes not interrupted. 



Dark brown or grey above; lower surfaces and tail lighter; 

 muscular part of tail and the upper crest sometimes more or 

 less dark spotted. Length 65 mm. 



Boulenger (1. c, 1920) considers R.varians and fiorensis as 

 distinct species. The differences, however, are very slight: 



R. florensis: Disks of fingers and toes equal, not twice as 

 broad as the narrowest part of the corresponding penultimate 

 phalanx. Heel reaching the tip of the snout. Male with a flat 

 gland on the inner side of the arm and internal vocal 

 sacs. — Hab. : Flores. 



R. varians (= molnccana) : Disks as in R. florensis. Heel 

 reaching beyond the tip of the snout. Male without humeral 

 glands') and with internal vocal sacs. — Hab.: Celebes; 

 Halmahera; Ternate; Batjan; Philippines; Pelawan. 



R. papua: Disks of toes a little larger than those of fingers, 

 at least twice as broad as the narrowest part of the penulti- 

 mate phalanx. Heel reaching the nostril, the tip of the snout, 

 or beyond. Male without humeral glands '), with internal, rarely 

 feebly developed external vocal sacs. — Hab.: Timorlaut 

 islands; Kei islands; Aru islands; New Guinea; Ferguson isl.; 

 Murray isl., etc. 



1) Boettger (I.e., 1901), however, mentions a humeral gland in specimens of 

 K varians^ and I myself (I.e., 1906) and Barbour (I.e., 1912) in R. papua from 

 New Guinea and Jobi. 



