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 ! / 2 , 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, 

 broad band; in the lower jaw in a divided, sns C.v. Teeth of upper 

 somewhat narrower band ; on the palate in jaw and P alate X 5 /- 

 two triangular patches, the length of which is equal to the 

 curved anterior base. 1 1 stiff", cylindrical gillrakers, ventrally 

 decreasing in size, the longest equal to '/ 3 of eye. Dark 

 reddish brown above, whitish grey below. Fins hyaline, the 

 impaired 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. 



Doubtful species. 



We can not make out the exact position of the following 

 species: 



