ICHTHYOLOGY. 273 



■n-itli fine tnarkintrs. A Wack spot at tlio baso of the tail. Dorsal and ramlal tins 

 punctati-ly lincateil. 

 ilaulmaiii. 



AcAxxnornTHALiius, r. ITasseU. 



Barbels 6, one rostral and two maxillary pairs. Suliorliital spine bifnl. 



A. I'ANclo, Ham. Eucli. 



B. iii. ; T). 8; 1'. 10; V. fi'T ; A. 7; ('. 17. 



Eyes minute. Caudal entire. Seales distinct. Light cinnamon. 

 Burma. 

 AruA, lllytJi. 



]iarbcls 8. Two rostral, two maxillary, and four maudiljular. Suborbital spine 

 bifid. Ventral fins absent. 



A. FFSCA, Blyth. 



B. iii. ; D. 8; P. 11 ; Y. 0; \. 8; C. 16. 



Brownish, with a dark lonsitudinal band. Grows to 2?r inches. 

 Pegu. 



B. J\'o erectile orlital spine. 

 XKMAeHKir.us, r. Jftinselt. 



Dorsal profile nearly horizontal. Barbels G (8 in one Indian species). None on 

 the mandible. 



K. ui'HiDii'ixxis, Blyth. 



B. iii.; D. 1516; P. H ; V. 8 ; A. 7 ; C. 19. 



The premaxillary ends in a spine-like process projecting from the middle of the 

 upper lip. The two rostral pairs of barbels reach to below the front edge of the eye. 

 Caudal nearly entire. Scales distinct. Reddish brown, with from 12 to 16 dark 

 irregular bands across the back, ending in dark spots below the lateral line. Dorsal 

 obli(lU(dy handed. Caudal vertically banded, and a black ocellus at the upper half 

 of its base. 



Tcnasscrim. 



N. ZONALTKR.VAXS, Blyth. 



B. iii.; D. 1 1 ; P. 11 ; V. ; A. 7 ; C. 19. 



Seales distinct. Ten or eleven bars across the belly and sides, with intermediate 

 half bands superiorly. Dorsal and caudal fins. 



N. ciNCTiCArDA, Blyth. 



B. iii.; D. 10; P. 11; V. 8 ; A. 7 ; C. 17. 



Barbels well developed, the maxillary reaching to below the front edge of the 

 orbit. Yellowish, with 10 regular brown zones encircling the body, a dark spot at 

 the base of the tail, and a dark band between the eye and the snout. Dorsal black- 

 spotted. 



The Irrawaddy. 



Famihj Clupeidse. 



i[argin of the upper jaw formed mesially by the premasillaries, laterally by tin' 

 maxillaries. Barbels none. Stomach w^th a " cul de sac." Air-vessel simple. 



ExGRACLis, Cuvier. 



Branchiostegals short and numerous. Body compressed, and serrated beneath. 

 The upper jaw the longer. Maxillaries long, with a membranous attachment to the 

 cheeks. Teeth small. 



18 



