566 



FISHES. 



a weight of 300 or 400 lbs., and the flesh, especially of 

 smaller specimens, is firm, flaky, and well flavoured. ' Aris- 



Fig. 260.— The " Wels," Siluris glanis. 



totle described it under the name of Glanis. Its former 

 occurrence in Scotland has justly been denied. In China it 

 is represented by a similar species, S. asotus, which, however, 

 has four barbels only. 



This sub - family is well represented by various other 

 genera in the f^esh waters of the African as well as Indian 

 region. African, genera are Schilhe and Eutropius ; East 

 Indian : Silurichihys, Wallago, BelodonticMhys, EutropiicMliys, 

 Cryptopterus, Callichrous, Hemisilurus, Siluranodo7i, Ailia, 

 Schilbichihys, Lais, Pseudeutropius, Pangasius, Helicophagus, 

 and Silondia. 



III. SiLUEiD^ Anomaloptee^. — Dorsal and adipose Jins 

 very short, the former helonging to the caudal vertebral column ; 

 anal very long. Ventrals in front of the dorsal. Gill- 

 membranes entirely separate, overlapping the isthmus: (Hy- 



POPHTHALMINA. 



Hypophthalmus. — Dorsal fin with seven rays, the first of 

 which is slightly spinous. The lower jaw is rather the longer. 

 Barbels six, those of the mandible long. No teeth ; inter- 

 maxillaries very feeble. Head covered with skin. Eye of mode- 

 rate size, situated behind and below the angle of the mouth. 

 Ventrals small, six-rayed. 



