94 



under the anterior half of the eye, about twice in head, oral 

 border of maxillajy without supplemental bone (cf. P. hoevenii], 

 but with a ligament instead. Origin of dorsal about in the 

 middle between snout and caudal, far behind the origin of 

 ventrals, which are situated much nearer to anal than to 

 suboperculum. Ventral fins exceedingly short. Pectorals a little 

 shorter than head without chin, reaching to ventrals. Anal 

 2 1 / 2 in length, its origin below posterior half of dorsal. Caudal 

 scaly, deeply incised, 5 in length. Scales with faint vertical 

 lines, hindmargin smooth. 36 37 abdominal scutes, about 9 

 behind ventrals. Silvery, above dark, fins hyaline. Length 

 150 mm. [Not seen by us]. 



Habitat: Borneo (Sambas, Serawak). 



In rivers. 



ii. Pellona xanthoptera Blkr. 



Pellona xanthopterus Bleeker, Nat. Tijdschr. Ned. Indie II. 1851, p. 439. 

 Pellona xanthoptera Gunther, Cat. Brit. Mus. VII. 1868, p. 457. 

 Ilisha xanthopterus Bleeker, Atl. Ichth. VI. livr. 25, 26. 1872, p. 122. 



B. 6; D. 1617; A. 4750; P. 1516; V. 7; L.I. circa 

 50; L. tr. 16. 



Oblong, compressed, ventral profile much more convex than 

 dorsal one, especially convex a little before ventrals. Height 3, 

 head 3 3 / 4 4, eye 2 2 / 3 to more than 3, much longer than snout. 

 Dorsal surface of head concave, with two pairs of diverging 

 ridges, the posterior halves of which are parallel. Maxillary 

 reaches to middle of eye, 2 2 ] / 5 in head. Oral border of 

 maxillary without supplementary bone (cf. P. hoevenii}, but 

 with a ligament instead. Origin of dorsal midway between 

 snout and caudal, far behind origin of ventrals, which are 

 situated about the middle between anal and suboperculum. 

 Ventrals shorter than eye. Pectorals as long as head without 

 chin, reaching much farther than base of ventrals. Length of 

 anal 2 2 / 3 2 3 / 4 in length of body, its origin below the hinder end 

 of the base of the dorsal or below its last rays. Caudal scaly, 

 deeply incised, 5 5 ! /2 * n length. Teeth on pterygoids, pala- 

 tines, tongue and jaws. Gillrakers 24, about as long as branchial 

 filaments, about 2 / 5 of eye. Scales thin, deciduous, shiny, with 

 concentric lines, hindmargin rough. 35 37 abdominal scutes, 

 10 12 of which postventral. Yellowish silvery. Fins hyaline. 



