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line and opposite to 2"^^ branched dorsal ray. Pectorals some- 

 what shorter than head. Caudal deeply incised, the lobes pointed, 

 longer than or equal to height of body. Least height of caudal 

 peduncle 1.7 — 1.8 in length of head, somewhat less than its 

 own length, surrounded by 16 or 17 scales. More or less 

 silvery, back brownish. A dark more or less conspicuous round 

 spot near the end of the lateral line, some scales above the 

 middle of the pectorals, above and below lateral line, with 

 black blotches. Length 316 mm. 



Nom. indig. : Kelabau (Bo); Kelabo (Samarinda). 



Habitat: Borneo (river Mahakam : Samarinda !, Batu Pangal!, 

 Kota Bangun ! and its affluent, river Bo). 



4. Osteochilus schlegeli (Blkr.). 



Rohita Schlegelii Bleeker, Nat. Tijdschr. Ned. Indie II. 1 851, p. 432. 



Rohita (Rohita) Schlegeli Bleeker, Ichth. Arch. Ind. Prodr. II. Cyprini, i860, 



p. 169. — Atl. Ichth. III. 1863, p. 65. 

 Osteochilus schlegelii Gunther, Cat. Brit. Mus. VII. 1868, p. 42. 

 Osteochilus Schlegelii Vaillant, Xotes Leyden Mus. XXI Y. 1902, p. 89. 



D. 3.13; A. 3.5; P. 1. 15 — 17; V. 1.8; L. 1.35; L.tr. ^^. 



(H-7 



Height 2.3- — 3.1, 2.8 — 3.8 in length with caudal. Head 

 4.3 — 4.4, 5.3 — 5.4 in length with caudal. Eye 3.6 — 4.3, situated 

 about in the middle of the length of the head, rather low 

 down, the middle of the eye being in a level with the cleft of 

 the mouth. Eye shorter than snout and more than twice to 

 nearly thrice in convex interorbital space. Lower jaw strongly 

 ascending from rounded chin. Maxillary barbels much shorter 

 than eye, the rostral ones still shorter. No pores on snout. 

 Origin of dorsal opposite to 9th scale of lateral line, separated 

 by 1 1 scales from occiput. Dorsal with the anterior rays pro- 

 longed, their height somewhat or much longer than head. 

 Origin of anal opposite to 22nd scale of lateral line, somewhat 

 behind end of dorsal, its anterior rays strongly prolonged, not 

 much shorter than head. Ventrals somewhat longer than pecto- 

 rals, reaching anus or not so far, their origin separated by 

 4^/, scales from loth scale of lateral line and opposite to the 

 space between first and second branched dorsal ray. Pectorals 

 somewhat shorter than head. Caudal deeply emarginate, the 

 lobes rounded, longer than or equal to head. Least height of 

 caudal peduncle 1.5 — 1.7 in length of head, equal to or shorter 

 Indo-australian fishes III. 9 



