cee! 
Arius melanopterygius Bleeker, Verh. Bat. Gen. XXII. 1849. Bijdr. Ichthyol. 
Madura p. 10, 
Cephatlocassis caedatus Bleeker, Ichth. Arch. Prodr. I. Siluri, 1858, p. 110. 
Arius caelatus Bleeker, Atl. Ichth. II. 1862, p. 35. 
Arius caelatus Giinther, Cat. Brit. Mus. V. 1864, p. 158. 
Arius caelatus Day, Fishes of India 4°. 1878—1888, p. 459. 
Arius caedatus Vinciguerra, Ann. Mus. Civ. Genova XVI. 1880, p. 173. 
Bee 2D) by A tO—-20) Pet. O53 ~V., 6. 
Elongate. Height 4?/, to more than 5. Head 3'/, to nearly 
4, its greatest width equal to its length without snout. Upper 
surface of head granulated. Occipital process carinated, its 
sides nearly parallel, as long as or slightly longer than 
its base, which is not much broader than its concave end, 
which is connected with the small, crescent shaped, corrugated 
basal bone of the dorsal spine. The narrow median fontanel, 
beginning behind the eye, reaches to the keel of the occipital 
process. Dorsal profile sloping downwards in a straight line. 
Eye 4—5'/;, with a free orbital margin, 2'/, in postorbital 
part of head, about twice in the interorbital space and less 
than twice in the rounded, obtuse, slightly prominent snout. 
Maxillary barbels extend to the middle or to the end of the 
pectoral fin, mandibulary barbels to half of pectorals, mental 
ones '/, shorter. Height of dorsal about equal to length of head. 
Dorsal spine produced into a soft, long filament, its osseous 
part equal to head, very strong, particularly in its basal half, 
granulated anteriorly, serrated behind. Adipose fin considerably 
shorter than dorsal, more than thrice in 
its distance from dorsal, opposite to 
anterior half of anal, the height of which 
is nearly equal to the length of the ven- 
trals, which reach to the origin of the a 
anal and are longer than head without _ Fig. 134. Arius caclatus 
: - C.V. Teeth of upper jaw 
its postorbital part. Pectorals somewhat ana palate X 1/3. 
shorter than head, their spine shorter 
and less strong than the dorsal one. Caudal deeply forked. 
Villiform teeth in the jaws in an arcuate band. On the palate 
in two widely separate, triangular patches, the anterior rounded 
base of which is considerably longer than their height. About 
8 stiff, flattened gillrakers, which are about equal to '/, of the 
eye. Blackish above, dark grey below. Adipose fin black, at 
least the distal part of the fins blackish. Length over 300 mm. 
