254 
with the outer rays the longer, which are equal to postor- 
bital part of head. Pectorals as long as head without snout, 
their spine slightly shorter, very strong, flattened, with the 
hindborder denticulated. A mucous porus in their axil. Teeth 
in the upper jaw in two nearly quadratic patches, in the 
lower jaw in two pearshaped patches with the point directed 
outwards and hindwards. Vomerine teeth in two very small, 
distant patches. Margaritaceous, above and anterior part of 
body blackish. Underside of head and belly white. Fins 
reddish, hindborder of dorsal and caudal dark. A whitish spot 
on the top of the head. Length 340 mm. 
Nomen indig.: Patin muntjung (Djambi). 
Habitat: Sumatra (Palembang, river Batang Hari, Djambi)). 
In rivers. 
4. Pangasius Cuvier et Valenciennes. 
(Cuvier & VALENCIENNES, Hist. Nat. Poissons, XV. 1840, p. 45). 
(Pseudopangasius Bleeker, Neopangasius Popta). 
Elongate, compressed. Profile behind dorsal nearly straight, 
before dorsal sloping down in a straight line to the more or 
less prominent snout, which is generally rounded or bluntly 
pointed. Head covered by soft skin, by exception granulated 
above. Mouth subterminal, horizontal or slightly ascending. 
The wide anterior nostrils are situated at the top of the 
snout, looking forward; posterior nostrils with an anterior lip, 
situated at a short distance behind the anterior ones. Eye 
with a free orbital margin, behind corner of mouth, at least 
partly below the horizontal through the corner of the mouth. 
Four generally short barbels. The maxillary barbels originating 
in a slit above or behind the corner of the mouth and which 
is continued below the eye. Mandibulary barbels far behind 
symphysis. Dorsal well developped, with 6—7 rays, with a 
strong denticulated spine which is preceded by a broad but 
very low rudimentary spine and has a filamentous prolon- 
cation. Adipose fin small. Anal fin distant from caudal, elon- 
gate, with 28— 40 rays. Ventrals with 6 rays. Pectorals with 
a strong denticulated spine. Caudal forked. Villiform teeth in 
the upper jaw in a slightly, in the lower jaw in a strongly 
curved band. Vomerine and palatine teeth in 4 patches, or 
