328 
B.. 3 Diaz 74) 2Ae 1O—-2026 Poi anO seas 
Elongate; height 51/,—5%/,, head 3°/,;—3'/,, its breadth about 
1'/, in its length. In the rostro-dorsal profile the snout and the 
neck are convex, the front and crown of the head slope in a 
straight line. Occipital process carinated, triangular, rather longer 
than broad, extending to the small basal bone of the dorsal 
spine. A long median fontanel reaching almost to the occipital 
process. Snout obtusely rounded, slightly prominent. Mouth 
3 times in length of head. The maxillary barbels reach to the 
opercles, the mandibulary barbels do not reach so far and 
are longer than the mental ones. Eyes about 8, lateral, small, 
covered by skin situated between the anterior and middle 
thirds of the head, 2—z2'/, in the width of the interorbital 
space, about twice in the snout. Dorsal fin rather higher than 
the body, its spine is strong, serrated behind, ?/, of the length 
of the head. Base of adipose fin scarcely longer than that of 
dorsal, its length being less than '/, its distance from the 
dorsal. Anal a little emarginate, longer than adipose fin. 
Ventrals about twice in head. Pectorals 1'/,—1'/, in head, 
their spine as long as the dorsal one, strongly serrated be- 
hind, weakly at the top of its frontborder. Caudal forked, with 
pointed lobes. Villiform teeth in a slightly curved band in the 
upper jaw, the band in the lower jaw more curved, broader, 
but antero-posteriorly shorter. Olivaceous above, margaritaceous 
below. Length 140 mm. [After Bleeker and Giinther and after 
a specimen in the Leyden Museum, seen by us]. 
Habitat: Sumatra (Palembang); Borneo (river Barito). 
In rivers. 
6. Hemipimelodus intermedius Vinc. 
Hemipimelodus intermedius Vinciguerra, Ann, Mus. Civ. Gen. XVI. 1880, p. 178. 
Beye Da is NG IQ; Pee 9; Nhsats 
Elongate; height 5'/,, head 3'/;, its breadth 17/, in its length, 
broad, depressed. Crownshields rugose, granulate. Occipital 
process keeled, triangular, not much longer than broad at its 
base, contiguous with the basal bone of the dorsal spine. 
The long median fontanel reaches nearly to the occipital 
process. Snout rounded, slightly prominent. Maxillary barbels 
reach to the hindborder of the operculum, the mandibulary 
ones do not reach the branchial opening and are longer than 
the mental ones. Eyes small, 11—12 in head, situated in the 
