SILUJiID.13. 109 



D. 1/6 I 0. P. 1/11-12. V. 6. A. 1/5. C. 17. 



Length of head 5, of pectoral 5, of caudal fin 5, height of body 

 8 in the total length. Eyes small, situated in the posterior two 

 fifths of the head. Mouth small, inferior, transverse : jaws in the 

 form of a double crescent or c/c-shape. Lips broad, with a median 

 and a lateral lobe on either side, having a barbel between. Nasal 

 barbels reach the end of the snout : the maxillary extend to the 

 pectoral fin. Fins as in the next species. Caudal slightly forked. 

 Colow uniform. 



Hab^ Mishmi Mountains, East Assam. 



115. (2.) Exostoma blythii. 



Exostoma blythii, Day, Fish. India, p. 501, pi. cxvii, fig. 2, 

 D. 1/6 | 0. P. 1/17. V. 6. A. 8 (2/6). C. 13. 



Length of head 4|, of caudal fin 6|, height of body 5 in the total 

 length. Eyes small, situated on the upper surface of the head : 

 the width of the interorbital space nearly equals the length of the 

 snout, which is broad and depressed. Mouth inferior and trans- 

 verse, sulcus behind lower lip interrupted. Gill-openings not 

 continued on to the lower surface of the head. Barbels the nasal 

 about three times as long as the orbit ; a fleshy appendage to the 

 maxilla having a rudimentary barbel ; two pairs behind the lower 

 lip arising on a transverse line. Teeth none on the palate. 

 Fins pectoral subhorizontal, its rays plaited below; base of 

 adipose more than twice as long as that of the rayed fin. Dorsal 

 arising slightly in advance of the ventrals, its spine weak. Ventrals 

 subhorizontal. Caudal with its outer rays slightly produced, 

 rendering it almost lunated. Air-bladder small, in two rounded 

 lobes, both enclosed in a bony capsule. Colour yellowish brown. 



Hob. Rivers below Darjeeling ; up to at least 3 inches long. 



116. (3.) Exostoma berdmorei. 



Exostoma berdmorei, lilyth, J. A. S. B. xxix, I860, p. 155 ; Day, 

 ffish. India, p. 502 (see synon.), 



D. 1/6 | 0. P. 1/10. V. 6. A. 6. C. 14. 



Maxillary barbels reach the base of the pectoral fin. The snout 

 is much more pointed than in the other species. Fins caudal 

 rather deeply forked. Colour " dingy olive-brown, with obscure 

 dark broad bands, presenting more or less of a clouded appearance : 

 the fins mostly darker, below pale." 



Hob. Tenasserim. The typical specimen (4 inches long) in the 

 Calcutta Museum is in such a very bad state of preservation that 

 I am unable to add to Blyth's description. 



