328 



B. 5; D. i. 7; A. 1920; P. i. 10; V. 6. 



Elongate; height 5Y 3 5 3 / 5 , head 3 2 / 5 3*/ 4 , its breadth about 

 i'/ 2 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 2'/ 2 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, 2 / 3 of the length 

 of the head. Base of adipose fin scarcely longer than that of 

 dorsal, its length being less than ! / 2 its distance from the 

 dorsal. Anal a little emarginate, longer than adipose fin. 

 Ventrals about twice in head. Pectorals i 1 ^ 1 ] /4 m 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 Gunther and after 

 a specimen in the Leyden Museum, seen by us]. 



Habitat: Sumatra (Palembang); Borneo (river Barito). 



In rivers. 



6. Hemipimelodus intermedius Vine. 



Hemipimelodus intermedius Vinciguerra, Ann. Mus. Civ. Gen. XVI. 1880, p. 178. 

 B. ? D. I. 7; A. I 9 ; P. I. 9; V. ? 



Elongate; height 5 ! / 3> head 3 ! / 3 , its breadth i 2 / 5 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 



