KTLTJBIDJB. 



203 



rather flattened, its greatest width equals its length behind the 

 nostrils. Upper jaw the longer, the width of the gape of the 

 mouth equals half the length of the head. Lips smooth. Occi- 

 pital process three times as long as wide at its base. Barbels 

 the nasal nearly reach to the orbit ; the maxillary pair are as long 

 as the head, the outer mandibular reach the gill-opening, the inner 

 are shorter. Teeth villiform in the jaws, and in one large patch 



Fig. IS.Eiifflypfostcrnum lineatnm. 



extending across the palate, and so closely approximating to the 

 premaxillary teeth that they appear like a single large band. 

 Adhesive apparatus on the thorax distinct. Fins the dorsal as 

 high as the body; its spine strong, entire, and about half the 

 length of the head; adipose dorsal of moderate height, the length 

 of its base equalling that of the rayed fin, or half the interspace 

 between the two fins. Pectoral spine very strong, smooth ex- 

 ternally, denticulated internally with about 9 or 10 teeth, and 

 reaching two thirds of the distance to the base of the ventral. 

 Caudal deeply forked. Skin smooth. Caudal peduncle twice as long 

 as high. Colour brown, with a narrow light band along the side. 

 Hah. The Jumna river, and also near Sadiya in Upper Assam ; 

 growing to 12-5 inches in length. 



30. Genus ERETHISTES*, MUller and Troschel. 

 Syn. Hara, Blyth. 

 Head osseous above, somewhat depressed. Mouth small, sub- 



* See P. A. S. B. 1872, p. 122, " On the identity of the Siluroid Genera 

 rcthisteK and Hara," by Francis Day. 



