﻿221 



the lateral line and the root of the ventral fin. Colour silvery, 

 dark above. The young ones with a black longitudinal lateral 

 band and a dorsal one, which disappears in old specimens. 

 Length 300 mm. 



Nom. in dig.: Wadong gunung (Malay. Batavia) ; Lehat, 

 Millang (Sundan.); Ahang, Modjok (Bongan). 



Habitat: Java (Batavia, Buitenzorg); Borneo (river Kapuas: 

 Sintang, mouth of Raun, Upper-Sibau and river Bongan ; river 

 Mahakam : river Bo and river Bluu ; river Baram). 



2. Tylognathus bo Popta. 



Tylognaihiis bo Popta, Notes Leyden Mus. XXIV. 1902 — 1904, p. 199. — 

 Ibid. XXVII. 1906, p. 116. 



5i 

 D. 3.8; A. 3.5; P. 1. 14— 16; V. 1.8; L. 1.34— 35; L. tr. j^- 



51 

 Height 3^3 — 4, almost 5 to s'/j in length with caudal. Head 

 4^/5-4^0. 6-67, in length with caudal. Eye A%-S%, 1^/5-2% 

 in snout, 2 — 3'/g in interorbital space. Two maxillary barbels, 

 ^/g of the length of the eye.^ No rostral barbels. Origin of 

 dorsal opposite to loth scale of lateral Hne, separated by 11 

 scales from occiput. Dorsal emarginate, its height equal to 

 that of the body or a little less. Origin of anal opposite to 21st or 

 22nd scale of lateral Hne. Height of anal more or less than 

 that of ventrals, which are somewhat shorter than pectorals. 

 Origin of ventrals separated by 3 scales from nth or 12th scale 

 of lateral line. Pectorals 4 — 47.2 in length, equal to or longer 

 than head. Caudal bifurcate and much longer than height of 

 body. Least height of caudal peduncle i-/g — i^r, in length of 

 head, surrounded by 16 scales. Brownish above, lighter below. 

 Length 294 mm. [Type seen by us in the Leiden Museum]. 

 Habitat: Borneo (river Bo!). 



3. Tylognathus kajanensis Popta. 



Tylognathus kajanetisis Popta, Notes I.eyden Mus. XXIV. 1902 — 1904, p. 198. — 

 Ibid. XXVII. 1906, p. 112. 



S\ 



D. 3.8; A. 3.5; P. 1. 13-15; V. 1.8; L. 1.37-38; L.tr. i . 



5-51 



Height equal to head, 473 — 4'77. 5^/5 — 6 in length with caudal. 

 Eye 5, sHghtly more than twice in snout, and 27o — 27,, in 

 interorbital space. Only a pair of maxillary barbels present, 



