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Distribution: Fresh water of indo-australian Archipelago 

 (Sumatra, Java, Borneo), East Indian Continent. 



Artificial key to the indo-australian species. 



1. Linea lateralis 40—43 Ch. oxygastroidcs p. 51. 



2. Linea lateralis 50 — 63. 



a. Pectorals reaching anus or even anal CJi. hypophthalmus p. 52. 



b. Pectorals reaching to or surpassing ventrals. . . . Ch. oxygaster p. 52. 



I. Chela oxygastroides (Blkr.) [Fig. 22, p. 50]. 



Leuciscus oxygastroides Bleeker, Nat. Tijdschr. Ned. Ind. III. 1852, p. 431. 

 Chela oxygastroides Bleeker, Ichth. Arch. Ind. Prodr. II. Cyprini, i860, p. 472. — 



Atl. Ichth. III. 1863, p. 135. 

 Chela vicgalolcpis Gtinther, Cat. Brit. Mus. VII. 1S68, p. 337. 



6-7 



D. 2.7; A. 3.28—32; P. 2. II — 13; V. 2.6; L. 1.40 — 43; L.tr i . 



5-6 



Oblong, strongly compressed. Profile of back nearly straight, 

 concave behind the elevated snout. Abdomen convex, with a 

 .sharp keel. Height 3.2 — -^,.6, almost 4 to 47.2 in length with 

 caudal. Head 4.3 — 4.6, 5.4 — 5.6 in length with caudal. Eye 

 about 3, equal to snout, and somewhat more than interorbital 

 space. Origin of dorsal opposite to that of anal, much nearer 

 to base of caudal than to head. Height of dorsal ^/a length of 

 head, about equal to first elongated ray of anal. Ventrals 

 inserted somewhat above the ventral profile, about -/g length 

 of head. Pectorals ^/j longer than length of head, reaching far 

 on ventrals or even to anus. Caudal deeply emarginate, equal 

 to head. Lateral line descending gradually, in a slight curve, 

 the top of which is opposite to ventrals. Gillrakers short, 

 cylindrical, widely set. Pharyngeal teeth 4. 3. 2 — 2.4.5. Yellowish 

 brown, with a silvery hue. A silvery longitudinal band along 

 the sides. Fins more or less powdered with black, forming a 

 more or less distinct longitudinal band on each caudal lobe. 

 Length over 200 mm. 



Nom. indig. : Seluang, Repang (Djambi), Lalang (Banjer- 

 massin), Kedukul (river Bo), Lundjor pari (Sundan.), Wader 

 pari (Javan.). 



Habitat: Sumatra (Palembang, Lahat, Lake Tador !, river 

 Batang Hari!); Java (Batavia, Krawang, Lake Kamodjing near 

 Tjihampeh!, Kediri!, Tulung Agung!); Borneo (river Kapuas : 

 Pontianak, Sintang, Smitau, Putus Sibau !, Sebruang, Knapei ; 



