52 
PISCES ABDOMINALES. SILURUS. 
The trunk. The back declines very gently towards the tail; the sides compressed, a little convex; the tail 
taper, flattish. The two exterior branchiae pectinate, the next two tuberculate, and there is a fifth small leaf, 
both denticulate and pectinate. Lateral line high, straight. The anus distant from the tail. 
The Jins. There are two dorsal, the first scapular, armed with a serrated spine; the second rising about the 
middle of the back, runs parallel with the opposite anal, and both are blended with the pointed caudal fin. 
The pectoral low, lanceolate, and, like the dorsal, armed with a serrated spine: the ventral distant from the 
head, small, lanceolate. 
The colour. The head and trunk above the line, blackish, the sides a dull copper, the belly and throat 
bright lead. From the rostrum to the tail, on both sides, are two whitish lines, and a third from the pectoral 
fin. The fins are nearly as dark as the back, the ventral excepted, which are lighter and glassy. 
The length of the subject described seven inches; but one caught in the river measured two feet seven. 
No. CLXVII. 
Silurus pinna dorsali postica acliposa ; cirris sex, quorum duo longissimi; cauda biloba falcata, 
setae ea. 
The Silurus with an adipose dorsal fin ; six cirri, two of which very long ; a bilobe 
falcate, setaceous tail. 
Called by the Natives Chinta Jellah. 
I 1 
B. iv. D.J. o. P.V. V. 6. A. 17. C. 18. 
The body sub-lanceolate, round and slender towards the end of the tail. No scales, but the back rough, and 
behind the vertex looks as if studded with golden pins. 
The head sharp, ovate, rough; the rostrum projects over the mouth, which, as well as the lips, jaws, teeth, 
and palate, agree with the last species. The two longer cirri rise from the sides of the rostrum near the point. 
The trunk. The back acclivous to the first dorsal fin, between which and the spurious fin almost straight, 
and then declines rather abruptly to the tail. The lateral line after waving gently till opposite to the anal fin, 
proceeds straight to the middle of the caudal fin: and a second line rising also from the operculum, bends 
obliquely to its termination at the ventral fin. 
The jins. The first dorsal armed with a strong spine, a little curve, rough, serrated; the rays slightly 
falcate: the second stands on the declivity where the tail grows roundish ; the pectoral is armed like the dorsal 
and of a like shape; the ventral fin very small; the caudal falcate and setaceous, 
The colour on the upper parts a dull leaden: the breast and belly whitish. 
The length four inches eight lines. 
