276 nillMA, ITS PEOPLE AXD PPODL'CTIOXS. 



C. No teeth inside mouth. 



C. TAEIEGATA, Day. 



B. vi. ; D. 1518; V. 17; Y. 8; A. '24-29; C. 17. 



Jaws equal. Ten serrated scales on either side of the ventral fin. Silvery, 

 glossed with gold and hronze. A dark shoulder spot. Back harreil witli 18 bauds. 

 Dorsal fiu black-banded posteriorly. Tail black-tijiped. Grows to 7 inches. 



The Irrawadd}' and its branches. 



C. iLisuA, Ham. Buch. 



Ngil-tha-louk. Burma. " Sable fish " or " Hilsa " of Europeans. 



B. vi. ; D. 1819; P. 15; V. 9; A. 1922; C. 19. 



Jaws equal. Caudal deeply forked. 16 to 17 scutes before, and 14 to 15 

 behind the ventral fin. Silvery, shot with gold and purple. In the young a row of 

 spots along the upper third of the body. The young are bronzed along the back, and 

 the caudal fin black-edged. The ' hilsa ' ascends rivers to spawn, and when taken 

 full of roe is excellent eating, though somewhat rich and heavy to digest. After 

 spawning they become thin, and, according to Day, " positively unwholesome." 



Pellona, Cuvier et Valenciennes. 



Branchiostegals 6. Body compressed. Belly serrated. Upper jaw' generally 

 shorter than the lower. Fine sharp teeth on the jaws, palatine and pterygoid bones 

 and tongue, but none on vomer. Dorsal fin small, median. 



P. Sladkxi, Day. 



B. vi. ; D. 13 ; P. 11 ; Y. 7 ; A. 44 ; C. 21. 



Ridges on the occiput diverge slightly posteriorly. 23 spinate scales anterior to the 

 ventral, and 10 posterior to that fin. Silvery. Operclcs golden. Caudal black-edged. 

 The Irrawaddy River at Jlandalay. 



DussuJiiEEiA, Cuvier et Valenciennes. 



Branchiostegals numerous. Belly rounded, not serrated. Snout pointed. Eyes 

 with broad adipose lids. Small fixed teeth in the jaws, and villiform ones on the 

 palatines, pterygoids and tongue, but none on the vomer. 



D. ACUTA, Cuv. et Yal. 

 0-pid-dah. Andamans. 



B. xiv.-xv. ; D. 19-20; P. 14; Y. 8; A. 1417; C. 21. 



Abdominal profile more convex than the dorsal. Scales very deciduous. Green, 

 shc't with blue. Ujiper margin of opercle and back light blue, witli a bronzed line 

 below, and below that again a silvery line, shot with piidc. Caudal shot with blue, 

 gri en and gold. Top of head emerald green. Pectoral, ventral, and anal fins white. 

 Dorsal yellowish green. Eyes white. This fi.sh grows to 7 inches, and is called a 

 ' sardine,' and highly esteemed for food. 



The Andamans. 



Megalops, Commerson. 



Branchiostegals numerous. Lower jaws prominent. A narrow bony plate 

 adherent to the mandibular symphysis, and covering the space between the rami. 



M. CTPniNorDES, Brouss. 



Nga-tan-youet. 



B. xxiv.-xxvi. ; D. 19-21; P. 15-16; Y. 10; A. 24-27 ; C. 19. 



Eyes -with naiTow adipose lids. Yilliform teeth in both jaws, ami on the 

 vomer, palatines, pterygoid and sphenoid. Caudal deeply lobed. Top of head dark 

 olive, back bluish-green (paler in the immature). Belly silvery, with bluish 

 reflexions. Scales silver-margined. Sides of head and lateral line silvery. The 

 centre of the jawa black. Dorsal and caudal greyish, minutely black-dotted. 



