FISHES OF THE DUKHUN. 371 
Length 18 inches, but attains to a very great magnitude, and requires, when caught, to 
be secured with cords. The fish is remarkably ugly : keeps always to the ground : teeth 
isolated, sharp and strong, prickle-like ; not on tongue or palate. 
The Kheerd has many features in common with the Pimelodus Cagarius of Dr. Hamil- 
ton, but some discrepancies compel me to consider them distinct. The discrepancies 
are in the granulated plate of the head, in the first pectoral ray being serrated poste- 
riorly, in having one ray less in the anal fin, and in the spotted colour of the fish, in- 
stead of being marked in black blotches. 
Found in the Mota Mola, at Poona. In different parts of the country it is known 
by the names of ‘ Kheerd,’ ‘ Moolandal’ and ‘ Guwch.’ 
Russell has not any fish resembling the Bagrus. The Silurus ascita of Bloch (PI. 
XXXV. fig. 2.) approximates to the Bagrus. 
I have named this fish after my friend Mr. Yarrell, who is so well known to ichthyo- 
logists, and to whom I am happy to make my acknowledgements for his judicious 
advice in the arrangement of my fishes. 
Bacrus Lonau. 
A Bagrus, with 8 small cirri; flat, granulated head ; first dorsal fin of 7 rays, and pectoral of 10 rays, the 
first ray of which is furnished on the posterior edge with long sharp teeth; anal fin of 10 rays. 
Head flat ; snout round, furnished with 8 small tentacule, 2 on the upper lip, 2 on 
the nostrils, and 4 on the under lip: eyes small: pectoral fins of 10 rays, first ray a 
bone furnished on the posterior edge with long, sharp, distinct teeth ; dorsal fin of 7 
rays, first ray a bone; second dorsal fin a triangular fleshy excrescence ; ventral fins of 
6 rays, situated behind a perpendicular from the first dorsal fin ; anal fin of 10 rays : 
tail forked, of 17 rays, besides 4 minute rays outside of each longest ray. Reddish 
brown, maculated with blackish. Native name ‘ Lonah.’ 
Genus Piatystoma. 
Platystoma is a genus of Agassiz; in Spix and Agassiz ‘ Fishes of Brazil,’ separated 
from the Pimelodi. Its principal features are the flat and elongated form of the mouth 
and head, and the peculiarly formed body; but it approximates very closely to the 
genus Sorubim of Spix. 
Genus Piatystoma, Agassiz. 
PratystoMa SEENGHALA. 
Tab. LXV. Fig. 2. 
A Platystoma, with the tail-fin crescent-shaped, lobes unequal ; with 8 cirri, two of which only are longer 
than the head, reaching to two-thirds of the length of the fish; the first ray of the pectoral and ventral 
fins serrated behind. 
Pectoral fins of 9 rays, first ray bony and serrated on the posterior edge ; dorsal fin 
