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Java (Batavia, Lebak, Buitenzorg, Tjikao, Parongkalong, Sura- 

 baya, Gempol) ; Borneo (river Kapuas : Pontianak, Bunut!, Putus 

 Sibau !, Putus Genting !, Sebruang, Danau Sriang, Raun, river 

 Bongan, river Kajan, river Mendalam, river Barito : Banjer- 

 massin, Pengaron, on one of its affluents, river Bo, Bluu and 

 Howong, affluents of the upper Mahakam, Baram River, 

 Sarawak and other rivers in North Borneo [British Museum]). — 

 Malacca ; Tonkin. 



The above description is in accordance with that of Bleeker 

 given for Rohita vittata ; the description of CuviER & VALEN- 

 CIENNES is too superficial to be sure that it is the same as 

 Bleeker's species, 



Bleeker distinguishes from this species as R. triporiis 



specimens, which have one scale less beneath the lateral line, 



li 

 thus: _i^ and by having a black spot anteriorly on the base 



5i 

 of the dorsal. In our material we find two specimens with the 

 same characteristics and besides characterized by having only 

 3'/2 series of scales between lateral line and origin of ventrals, 

 but otherwise identical with vittatus. If this form from Borneo 

 and Sumatra is really a good species, its synonymy would be : 



7^. Osteochilus triporus (Blkr.). 



Rohita triporos Bleeker, Nat. Tijdschr. Ned. Indie IIL 1852, p. 598. 



Rohita (Rohita) triporos Bleeker, Ichth. Arch. Ind. Prodr. II. Cyprini, i860, p. 182. 



Rohita (Rohita) triporus Bleeker, Atl. Ichth. III. 1863, p. 70. 



Osteochilus triporus Gunther, Cat. Brit. j\Ius. VII. 1868, p. 44. 



Osteochilus triporus Vaillant, Nouv. Arch. Mus. Hist. Nat. (3) V. 1893, P- 75- 



In our material of 29 specimens from Djambi, 20 are quite 

 in accordance with the description of O. vittattis. Nine others 

 differ in having a less number of scales between lateral line 



4l— 5 



and dorsal, for their linea transversalis is i . Besides they 



61" 

 arc characterized by a black band on the outer upper and 

 lower margin of the caudal and by a black spot anteriorly on 

 the base of the dorsal as is also described for 0. triporus. 

 Two specimens from Putus Sibau on the river Kapuas, Borneo, 

 are identical with the lastnamed 9 specimens. We propose 

 to call them provisionally : 



