13 

 i. Scleropages formosus (Mull. & Schl.). 



Osieoglossum formosum Miiller & Schlegel. Verh. Nat. Gesch. Ned. overz. Bez. 



Zool. Visschen. 1844, p. I. 



Osteoglossum formosum Gunther. 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 (Miill. & Schl.). 



B.I5 l6; D. 20; A. 26 27; P. 7; V. 5 ; L.I. 21 24; L.tr. 2'/ 2 -2. 



Elongate, ventrally compressed. Height 3 1 / 2 -nearly 5. Head 

 3^/2 4, eye 4 4'/ 2 > interorbital space i'/ 2 diameter of eye. Post- 

 orbital part of head 2 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, */ 4 shorter than branchial fila- 

 ments, 2 / 3 of eye; 10 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. 



N o m. i n d i g. : 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. 



