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and its tributaries, Kwanten river !, Batang Hari !, Lake Ma- 

 nindjau); Borneo (rivers Barito, Kahajan, Kapuas, Bongan, 

 Mahakam). 



2. Botia hymenophysa (Blkr.) [Fig. 6, p. 22]. 



Cobiiis hymenophysa Bleeker, Nat. Tijdsclir. Ned. Indie, III. 1852, p. 602. 

 Hymenophysa MacClellandl Bleeker, Nat. Tijdschr. Ned. Indie XVI. 1858— 



1859, p. 358; Ichth. Arch. Ind. Prodr. II. Cyprini, i860, p. 63. 

 Botia hymenophysa Bleeker, Atl. Ichth. III. 1863, p. 6. 

 Botia hymenophysa Giinther, Cat. Brit. Mus. VII. i868, p. 368. 

 Botia hymenophysa Volz, Zool. Jahrb. Abth. Syst. XIX. 1903, p. 406. 

 Botia hymenophysa Popta, Notes Leyden Mus. XXVII. 1906, p. 207. 



D. 13—15; A. 8; P. 12 — 15; V. 8. 



Elongate. Height nearly 4, head about s'/s- Eye 5—7, situ- 

 ated in the posterior half of the head. Suborbital spine about 

 equal to eye. Mouthopening terminal, with the upper jaw slightly 

 overlapping; the lips thick, partly lamellated or verrucose. 

 Six barbels: four rostral ones, the inferior pair the shorter, 

 one behind each angle of the mouth. Origin of dorsal nearer 

 to base of caudal than to end of snout. Length of caudal peduncle 

 about equal to its greatest height. Brownish, with 13 — 15 cross- 

 bars, with dark edges ; in preserved specimens only these edges 

 are visible. Dorsal and caudal with transverse bands, the former 

 generally with a blackish blotch on its anterior superior angle. 

 Length over 210 mm. 



Nomen indig. : Langli (Pangabuang), Lelangli (Djambi), 

 Seku (Kapuas), Buleng and Avemadjan (Mahakam). 



Habitat: Java (Ngawi); Sumatra (Telok Betong, river 

 Pangabuang, river Musi and its tributaries, river Kompeh, river 

 Kwantan !, river Indragiri, river Kampar!, river Batang Hari !, 

 river Djambi!); Borneo (Sarawak [British Museum], rivers 

 Kapuas, Kahajan, Mahakam and their tributaries); Singapore. — 

 Malay Peninsula [British Museum], Siam. 



2. Acanthopsis Bleeker. 



(Bleeker, Nat. Tijdschr. Ned. Indie, XVI. 1858 — 1859, p. 303). 

 Much elongate, compressed. Eyes covered by skin, in advance 

 of them an erectile bifid suborbital spine. Head compressed, 

 snout much elongate, mouth inferior, small. A pair of rostral 

 barbels, close together at the point of the snout, a pair of 

 separate barbels along each upper jaw, lower jaw with a fringed 

 Hp. Scales very minute, wanting on the head. Nostrils appro- 



