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jb. Osteochilus intermedius n. sp. 

 The species described by Miss Popta as : 

 •jc. Osteochilus bellus Popta, 



Osteochilus belhts Popta, Notes Leyden Miis. XXIV. 1902 — 1904, p. 197. — 

 Ibid. XXVII. 1906, p. 104. 



forms a transition^ between 0. triporus and O. intermedins, as 



their linea transversalis is: i and as they have 3^/0 — 4 series 



of scales between ventrals and lateral line. Moreover 0. bellus 

 has a black spot at the end of the lateral line. The 8 series of 

 small spots, described by Miss PoPTA, may sometimes also be 

 found in small specimens of 0. vittatiis. 0. bellus Popta attains 

 200 mm. and is found in Borneo (river Bo), where it is 

 called Piit. 



8. Osteochilus brachynotopterus (Blkr.). 



Rohita brachynotopterus Bleeker, Nat. Tijdschr. Ned. Indie IX. 1855, p. 266. 

 Rohita (Rohita) brachynotoptertis Bleeker, Ichth. Arch. Ind. Prodr. II. Cyprini 



i860, p. 122. — Atl. Ichth. III. 1863, p. 67. 

 Osteochilus brachynotopterus Giinther, Cat. Brit. Mus. VII. 1868, p. 43. 

 Osteochilus brachynotopteriis M. Weber & de Beaufort, in Maass: „Durch Zentral- 

 Sumatra", II. 1912, Fische, p. 523. 



_5i 

 D. 3.10^ — 1 1 ; A. 3.5; P. 1. 13 — 14; V. 1.8; L. 1. 33 — 34; L. tr. i^. 



b\ 



Height about 3.5, 4.5 — 5 in length with caudal. Head 4 to 

 4.5, about 5.5 — 6 in length with caudal. Eye 3 — 3.4, shorter 

 than snout, 1.5 — 1.7 in interorbital space, situated somewhat 

 nearer to end of operculum than to tip of snout. Snout rounded, 

 blunt, without pores. Maxillary barbels about equal to eye, 

 rostral ones shorter. Origin of dorsal opposite to 8^ or 9th 

 scale of lateral line, separated by about 10 scales from occiput. 

 Anterior rays may be prolonged, in that case ^/g longer than 

 head, in others about equal to length of head. Anal concave, 

 the first ray somewhat prolonged, shorter than head, its 

 origin opposite to 2Ql^ or 21st scale of lateral line, behind end 

 of dorsal. Ventrals equal to or somewhat longer than pectorals, 

 on account of the outer prolonged rays, which reach on anal. 

 Origin of ventrals opposite to 31(1 branched dorsal ray and sepa- 

 rated by 4 — 4'/2 scales from the i ith scale of lateral line. Pectorals 

 about equal to head or shorter. Caudal deeply emarginate. 



