75 



Habitat: Sumatra (rivers Kwantan!, Kampar kiri!, Lamatang, 

 Musi); Banka; Biliton ; Borneo (rivers Kahajan, Baram; Merabah 

 [British Museum]. 



Note: Karoli (Termeszetrajzi fiizetek V. 1882, p. 34) men- 

 tions this fish from Ceylon, we believe that he has confounded 

 it with R. daniconius. 



13. Rasbora jacobsoni n. sp. 



Rasbora daniconius Max Weber, Zool. Ergebn. Reise Nied. Ost-Indien, III, Heft 2, 

 1894, p. 424. (nee. Ham. Buch.). 



D. 2.67; A. 3.5; P. 1.13; V. 2.8; L. 1. 2527; Sq.l. 26; 



li 



L. tr. j_ (between D. and V.). 

 i 



Height 3.7, 4.8 in length with caudal. Head 3.4, 4.4 in length 

 with caudal. Eye 3.7, about equal to snout, somewhat less 

 than the interorbital space. Cleft of mouth strongly ascending, 

 its frontpart strongly undulated, in consequence of the very 

 deep and rather wide notch of the upper lip, which receives 

 the triangularly prominent symphysial part of the mandible. 

 Anterior end of cleft of mouth in the level of the middle of 

 the eye, its posterior end below frontpart of eye. Origin of 

 dorsal conspicuously behind middle of distance between snout 

 and last caudal scales, separated by 1 1 scales from the head, 

 and opposite the 10^ lateral scale. Dorsal rounded, situated 

 much nearer to anal than to ventrals, its height about two third 

 of the height of the body. Anal concave, its height about equal 

 to that of the dorsal. Ventrals not reaching anal, situated in the 

 middle between operculum and anal. Pectorals equal to head 

 without snout. Caudal about 4 in total, deeply emarginate, 

 longest rays about twice the shortest. Least height of caudal 

 peduncle 1.6 in its length. Colour of alcohol specimens brown 

 above, much lighter below, belly yellowish. A band from 

 snout to caudal, anteriorly blackish, getting fainter but broader 

 posteriorly; above it, between head and about the vertical 

 through anal, two longitudinal series of scales silvery, their 

 hindmargin with a dark patch. A dark band along base of 

 anal. Fins greyish. Length 60 mm. 



Habitat: West Sumatra (Kaju tanam!, Arau !, Lake Sing- 

 karah!, brook near Manindjau !, Fort de Kock!, Pond Ajer 

 tegenang (1150 M. above the sea)!, Siboga!). 



