94 
under the anterior half of the eye, about twice in head, oral 
border of maxillary without supplemental bone (cf. P. hoevenzz), 
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'/, 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]. i 
Habitat: Borneo (Sambas, Serawak). 
In rivers. 
II. Pellona xanthoptera Blkr. 
Pellona xanthopterus Bleeker, Nat. Tijdschr. Ned. Indié II. 1851, p. 439. 
Pellona xanthoptera Giinther, Cat. Brit. Mus. VII. 1868, p. 457. 
llisha xanthopterus Bleeker, Atl. Ichth. VI. livr. 25, 26. 1872, p. 122. 
B. 6; D. 16—17; A. 47—50; P. 15—16; V. 7; L.1. circa 
50s  Leznteo 16; 
Oblong, compressed, ventral profile much more convex than 
dorsal one, especially convex a little before ventrals. Height 3, 
head 3°/,—4, eye 27/,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'/, in head. Oral border of 
maxillary without supplementary bone (cf. P. hoevenziz), 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 27/,-2*/, 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'/, in length. Teeth on pterygoids, pala- 
tines, tongue and jaws. Gillrakers 24, about as long as branchial 
filaments, about */, of eye. Scales thin, deciduous, shiny, with 
concentric lines, hindmargin rough. 35—37 abdominal scutes, 
10—12 of which postventral. Yellowish silvery. Fins hyaline. 
