219 



of the mouth and about half the width of the body. Spira- 

 culum sinistral, directed upwards and backwards, visible from 

 above and from below, equally distant from the vent and the 

 tip of the snout, or a little nearer to the vent; vent dextral, 

 close to the lower border of the tail. Tail more or less pointed ; 

 lower crest low, the upper one higher, extending to the root 

 of the tail. 



Lower lip and sides of upper one bordered with papillae, 

 which are arranged in two or three rows, not interrupted in 

 the median line; jaws edged with black; series of teeth 

 2 — 4*2 — 4/3, the inner rows of upper lip broadly interrupted, 

 decreasing in size inwards, the innermost one usually very short ; 

 rows of lower lip almost equal in length (the outermost a 

 little shorter), the inner one sometimes very narrowly interrupted. 



Skin very transparent; there are some more or less distinct 

 granular patches, viz. on the back a round one behind each 

 eye and an oblong one at each side of the base of the tail, 

 on the ventral surface two round ones (in older specimens 

 sometimes confluent) beside each other behind the mouth and 

 an oblong one at each side on the belly. 



Back darker or lighter grey or brown, sometimes spotted 

 or marbled with darker brown; muscular part of tail colour- 

 less or light brown; belly and crests colourless. Length 64 mm. 



Habitat: Sumatra (Bandarbaru, Batak mts., +900 m.!; 

 Lauttador; Toba lake; Mt. Simbolon; Agam; Kajutanam?!; 

 Batu Sangkar, betw. 460 and 900 m. ; Sandaran Agung, 730 m., 

 in Kurintji valley 1 ); Sungei Kumbang, 1430 m., Kurintji 

 peak!; Muarolabu; Palembang ! ; Lampong distr. !) ; Borneo 

 (Danau Sriang; Matang); Java (Buitenzorg ! ; Mt. Pangeranggo; 

 Perbawati, Mt. Gedeh ! ; Tjibodas!, 1400 — 2000 m.; Pasirdatar, 

 900 m.!; Sukabumi!; Tjiandjur; Djampang Tengah ! ; Mt. 

 Malabar, 1500 m.!; Gunung Sesuru ! ; Tjitalahab !; lake Pateng- 

 an; Babakan! and Idjen!, Bagelen ; Wonosobo ! ; Tengger 

 mts., 1200 m.); Celebes (Indrulaman; Loka ! ; Bua Praeng; 

 Pundidaha; Kandari ; Rumbi Mengkoka; Luwu ; Pinapuan ! ; 

 Uangkahulu valley; Bone valley; Tomohon ; Mt. Masarang; 

 Menado). — Philippines. 



1) The specimens from Kurintji, identified by Boulenger (Jrn. Fed. Malay 

 St. Mus., VIII, pt. II, 1920, p. 292) as R. nicobariensis, according to Mr. Male. 

 Smith are certainly R. chalconota (communicated to me by Mr. C. Boden Kloss). 



