234 
9—I1; 3'/,—4'/, in snout; eyedistance 1'/,—1°/, in snout. Nasal 
barbels reach the eye or nearly so; about as long as maxil- 
lary barbels. Mandibulary barbels the longest, they may reach to 
branchial opening. Mental barbels shorter. Height of first dorsal 
more or less than half of head, its spine about '/, shorter. Second 
dorsal and anal similar, lower than first dorsal. Ventrals rounded, 
about as long as height of first dorsal, about '/, shorter than 
pectorals, which are considerably longer than height of first 
dorsal, their spine shorter than that of the dorsal. Lower 
surface of head and abdomen white, uppersurface of head 
and anterior part of back dark brown, otherwise marmorated 
dark brown and yellowish, like the fins; but underside of 
ventrals and pectorals more or less uniform white. Barbels and 
lips white. Length more than 200 mm. 
Habitat: South New Guinea. (Lorentz river!). 
5. Porochilu's MM: Weber 
(Max WEBER. Nova-Guinea IX, livr. IV. 1913, p. 523). 
Elongate, tapering, head more or less depressed, mouth 
transverse, rounded in front. Eyes covered with skin, lips 
rather thin, weakly papillated, the thicker underlip lamellated. 
Upperlip slightly prominent. Its interior border perforated by 
the anterior nostrils, which look downwards. Posterior nostril 
a slit behind the nasal barbel. A maxillary barbel at the end 
of the upperlip, a mandibulary near the corner of the mouth 
and two mentals between the mandibulary barbels. Origin of 
first dorsal conspicuously behind origin of pectorals, a little 
before ventrals, with a rather weak spine, without serrature. 
Caudodorsal very short, its anterior rays above the last !/, of 
the anal, nearly no procurrent fat pad. Anal many-rayed, 
confluent with the caudal. Ventrals with 11—12 rays. Pecto- 
rals with 7—8 rays and a rather weak spine, which has a few 
teeth at its frontborder. Conical teeth in 2—3 rows forming 
two small subtriangular patches in the upper jaw. The man- 
dibulary ones are also conical, crowded in two laterally 
narrowing and rounded patches, mesially in about 7 rows, 
the anterior ones a little recurved. Vomerine teeth cylindrical, 
rather high, with a rounded top, in a patch, rounded anteriorly. 
The majority of the teeth is light brown or tipped with yel- 
lowish. Lateral line more or less conspicuous by distant pores. 
