irUTUYOLOar. 271 



from Iho baso of the dnrsal to the tail, narrowing anteriorly. Dorsal margined with 

 red. Anal with a mesial yellow .stripe. Grows to 2 inches. 

 Jlaulmain in tanks and streams. 



I). NIGROFASCIATUS, Day. 



B. iii. ; D. 9; P. 15; V. 7; A. 13; C. 10. 



The maxillary barbels reach to below tlu^ orbit. Rostral none. A dark band 

 down the side, and a blu(i-dotted line below it. Dorsal and anal lineately black-spotted. 

 Sometimes the body is intense blue. Grows to less than au inch in length. 



Pegu and ilaulmaiu. 



li. BvUij trenchant, wholly, or in part. 

 Peui I.AM PCS, MacClelland. 



Body oblong, compressed, with a trenchant abdominal edge, llouth directed 

 obliquely upwards. Barbels none. Outer ventral ray elongated. 



P. ATPAK, Ham. Buch. 



Nga-man-dor, or Ye-paw-nga, or Nga-hpyin-gyan. 



B. iii.; D. 9; P. 10; V. SC; A. 22-24. 



Body strongly compressed. Elongated ventral ray reaches to nearly the end of 

 the anal fin. Silvery, with a burnished lateral band. Dorsal and caudal fins yellow. 

 Grows to 4 inches. 



Burma. 



P. LAXBUCA, Ham. Buch. 

 iN'ga-mi-loung. 



B. iii.; D. 1011; P. 13; V. 7; A. 19-23; C. 19. 



Body strongly compressed. Ventral margin trenchant belween the pectoral and 

 anal fins. Silvery, with some golden vertical stripes during life. Fine dots over the 

 body, and a black mark shot -with green above the base of the pectoral, and another 

 at the base of the caudal. Tlie posterior third of the tail sometimes black. Tail spot 

 sometimes wanting. Grows to 3.} inches. 



Burma. 



Chela, JTamilton Buchanan. 



Body elongate, compressed, with trenchant abdominal edge. Lower jaw promi- 

 nent, with usually a symphysial knob. Barbels none. No osseous dorsal ray. 



Bona /}/ forearm do not support the cihje of thorax. 



C. Sladeni, Day. 



B. iii. ; D. 10; P. 11 ; V. 8; A. 20-21; C. 21. 



Suborbital ring half as deep as the orbit. The serrated ventral margin com- 

 mences opjjosite the base of the pectoral fin. The lower caudal lobe the longer. 

 Silvery, caudal black-edged. 



The Irrawaddy River. 



C. SARDIXELLA, CuV. ct Tal. 



Nga-kwon-hnyat. 



B. iii.; D. 9; P. 13; V. 8; A. 21. 



Suborbital ring broad, but does not touch the preopercular ridge. Caudal deeply 

 forked, the lower lobe the longest. Silvery. Grows to 6 inches. 

 The Irrawaddy and Salween Rivers. 



C. CLUPEOIDES, Bloch. 



B. iii.; D. 9; P. 13; V. 9; A. 1315. 



