silurim:. 127 



GENUS SILUEUS. 



Geographical Distribution. From Germany to 

 China. 



Chae. Barbels four or six, one pair being max- 

 illary, and one, or two pairs, mandibular. Ventral 

 tins with more than 8 rays. ~No adipose fin. Dorsal 

 very short. Caudal rounded. 



-, _., c berdmorei 



1. Silurus i .... • o 



C cochmcnmensis ? 



Hab. 1ST. E. Frontier of Bengal. 



Char. Anal rays 62. Yentrals 10. Upper jaw 

 projects beyond the lower. Pectoral spine scarcely 

 serrated. 



Barbels four. 



2. Silurus malabaricus. 



Hab. Malabar. 



Char. Anal rays 62. Ventrals 9. Lower jaw pro- 

 jecting. 



Pectoral spine strong and serrated. Barbels 4. 



3. Silurus dukai. 



Hab. Sikkim. 



Char. Anal rays 78. Pectoral spine smooth. 

 Anal and caudal fins united, without any distinct 

 notch. 



4. Silurus wynaadensis. 



Hab. Wynaad. 



Char. Anal rays 58 to 62. Barbels 6. 



