SILURID2E. 
151 
GENUS ERETHISTES. 
Char. Head broad, covered with bony plates. 
Tail narrow. Month small. Dorsal fin with a strong 
serrated spine. Anal with about 10 rays. Body 
with minute tubercles arranged in longitudinal series. 
Eyes small. 
1. Erethistes pusillus. 
Hab. Assam. 2 inches. 
Char. Dorsal and pectoral spines very strong. 
2. Erethistes hara. ( Ha/ra, luchanani , Giinth.) 
Hab. Bengal and Assam. 2-g- inches. 
Char. Dorsal and pectoral spines of moderate 
strength, the former serrated interiorly, the latter 
with strong teeth internally, and double spines, point- 
ing forwards and backwards, on the exterior edge. 
Colour brown, banded. 
3. Erethistes conta. 
Hab. Lower Bengal. 4 inches. 
Char. Dorsal spine serrated interiorly, pectoral 
spine toothed on both sides, the teeth on the outside 
pointing forwards. Barbels shorter than the head. 
Colour brown, fins spotted. 
4. Erethistes jerdoni. 
Hab. Sylhet. 1 inch. 
Char. The pectoral spine toothed as in E. conta, 
the remaining rays of the pectoral fin are rudimen- 
tary, and scarcely perceptible. 
5. Erethistes elongata. 
Hab. Naga Hills. 
