326 
breadth */, of its length. Dorsal profile with a slight convexity 
sloping down to the broad, slightly prominent, rounded snout. 
Mouth slightly rounded, more than twice in head, when closed 
only the posterior part of the maxillary band of teeth is 
covered. Nostrils above a line, connecting the middle of the 
eye and the point of the snout. Head covered by skin, its 
posterior part granulated. Occipital process keeled, somewhat 
longer than the breadth of its base, its lateral borders nearly 
parallel, its hindborder touching the basal bone of the dorsal 
spine. Median fontanel shallow, rhombic, situated between 
posterior nostrils and occipital process. Humeral process rather 
long and pointed. Eyes about 7, nearly lateral, with a free 
orbital margin situated in the anterior half of the head, 
2'/,-2'/, in the snout, 41/,-4'/, in the slightly convex interor- 
bital space. Maxillary barbels extending to base of pectorals 
or somewhat farther, mandibular barbels to base of pectorals, 
mental ones conspicuously shorter. Dorsal originates midway 
between pectorals and ventrals; nearly equal to head from 
posterior nostril; osseous part of dorsal spine equal to head 
without snout, flattened, the fine granules of its frontborder 
are distally coarser, hindborder serrated. Base of adipose fin as 
long as dorsal, its distance from lastnamed fin about 2'/, times 
its length. Anal emarginate, its height about equal to postor- 
bital part of head, ventrals of about the same length, reaching 
anal or nearly so. Pectorals 1 eyediameter longer than head 
without snout, their spine in length and otherwise equal to 
dorsal spine. Caudal deeply forked, its lobes pointed, more 
than thrice in the longest median rays. Least height of caudal 
peduncle 1'/, times its length. Crescentic maxillary band of 
villiform teeth 6 times broader than long, the band of the 
lower jaw nearly similar but laterally pointed. About 12 short, 
stiff gillrakers, broadened at their base, the most lateral ones 
very short. Dorsal surface and sides of a lighter or darker steel 
colour, gradually passing into the yellow white of the lower 
surface. Fins dark, margin of anal and pectorals and innerside 
of ventrals lighter. Length abouth 350 mm. 
Nomen indig.: Kantjur (Sentani). 
Habitat: North New Guinea (Lake Sentani!, river Tami!, 
and its tributaries!, river Tawarin!). 
In fresh water. 
