13 
1. Scleropages formosus (Miill. & Schl.). 
Osteoglossum formosum Miller & Schlegel. Verh. Nat. Gesch. Ned. overz. Bez. 
Zool. Visschen. 1844, p. I. 
Osteoglossum formosum Giinther. Cat. Brit. Mus. VII. 1868, p. 378. 
Osteoglossum formosum Bleeker. Atl. Ichth. VI. 1866—1872, p. 145. 
Osteoglossum formosum von Martens. Exp. nach Ost-Asien, Zoolog. Teil I 1876, 
P- 304, 312. 
Fig. 7. Scleropages formosus (Mill. & Schl.). 
B.15——16; D. 20; A. 26—27; P.7; V.5; L.l. 21—24; L.tr. 2'/,-2. 
Elongate, ventrally compressed. Height 3}/,-nearly 5. Head 
3'l,—4, eye 4—4'/,, interorbital space 1'/, diameter of eye. Post- 
orbital part of head 2—2'/, diameter of eye. The pointed 
snout shorter than the eye. Gape of mouth oblique. Chin 
prominent, with two stout fleshy barbels, a little shorter or 
longer than the eye. Maxillary reaching far behind eye. Dor- 
sal shorter than half length of anal, as high as postocular 
part of head, a little higher than anal. Anal about as long 
as head. First produced ray of ventrals longer than postor- 
bital part of head. Pectorals reaching base of ventrals, about 
3 times in length. Scales large, with prominent reticulated 
lines. Eight stout gillrakers, '/, shorter than branchial fila- 
ments, 7/, of eye; IO protuberances on the innerside of the 
first branchial arch. Dorsally dark olivaceous green, the sides 
and ventral surface silvery or golden green, sometimes with 
longitudinal rows of oblique dark patches, shining through the 
lateral scales. Fin membranes bluish, the rays reddish brown. 
Length 430 mm. 
Nom. indig.: Tangalasa (Kuwala Pattai), Talisso (Lampong), 
Mamang djawan (Laut Tador), Tangkuso (Palembang), 
Habitat: Sumatra (Lampong, Palembang!, Laut Tador) ; 
Banka; Borneo! (Kuwala Pattai, Sambas, Banjermassin, Danau 
Sriang, Mahakan river). 
Freshwater. 
