315 
rugosities bordering the very narrow and short median fontanel, 
which reaches to the median keel of the triangular occipital 
process, That process is slightly longer than broad at its base 
and concave at its hindborder, which touches the basal bone of 
the dorsal spine. Dorsal profile sloping down in a straight 
line. Eye 4—4'/,, with a free orbital margin, slightly more 
than half the width of the interorbital space, more than half 
the length of the snout, which is rounded and prominent. 
Maxillary barbels extend to or beyond the root of the pectorals, 
mandibulary barbels beyond the gillmembranes, mental ones 
somewhat shorter. Height of dorsal shorter than head, higher 
than the body; osseous part of its spine equal to head be- 
hind posterior nostril, granulated in front, serrated behind. 
Base of adipose fin shorter than dorsal, about 4 times in its 
distance from lastnamed, situated above the middle of the 
anal fin, the height of which is shorter than that of the dorsal 
and equal to the length of the ventrals, 
which reach on it. Pectorals slightly longer, 
their flattened spine nearly as long as the 
dorsal one, granulated in front, strongly 
serrated behind. Caudal deeply incised. Villi- 
form teeth in upper jaw in a slightly arcuated, Teen Tere 
broad band; in the lower jaw in a divided, sws C.V. Teeth of upper 
somewhat narrower band; on the palate in /*¥ 274 palate X %. 
two triangular patches, the length of which is equal to the 
curved anterior base. 11 stiff, cylindrical gillrakers, ventrally 
decreasing in size, the longest equal to '/, of eye. Dark 
reddish brown above, whitish grey below. Fins hyaline, the 
unpaired distally, the paired ones above blackish. Length 
about 260 mm. 
Nomen indig.: Manjong utik, Manjur duri, (Malay. Batav.). 
Habitat: Java (Batavia, Surabaya); Borneo (Balikpapan!}, 
Moratabas (Brit. Mus.) Sandakan); Madura; Bintang; Banka; 
Singapore. — Malacca, Burma, Andamans, Ceylon, Seas of 
Madagascar. 
In sea. 
Doubtiul species: 
We can not make out the exact position of the following 
species: 
