iciiTfiroLoar. 2G1 



alont; its upper edge. Pectoral and ventral diajiluuious, the latter with sometimes 

 a black spot at the base. Caudal yellowish or greeuish, minutely black-dotted aud 

 •\vitli a bluish-black spot at its base. 

 The Andamans. 



Beloxe, Ciivier. 



Both jaws elongated into a beak. No iinlets. Bones green. 



B. CA^•CIXA, Ham. Buch. 



Nga-hpoung-yo. 



B. X.; D. 15-18; P. 11 ; V. fi ; A. 1G18; C. 1.5. 



A deep longitudinal groove along the top of the head. A row of large sharp 

 distant teeth on both jaws, with an external row of fine ones, none on tho vomer. 

 Greenish grey above, whitish along tho belly. A dark-margined silvery streak from 

 the orbit to "the tail. The upper two-thirds of the body closely marked with five 

 black spots, with four or five larger blotches between the bases of the pectoral and 

 anal tins. Dorsal and caudal fins tipped behind with darker. Eye golden. 



Ta-goung. 



Hemiehampiius, CiU-ier. 



The lower jaw only elongated into a beak. 



H. uxiFASciATCs, Ranzaui. 



B. X.; D. 1516; P. 12; Y. 6; A. 15-17; C. 16. 



Teeth fine and numerous in both jaws. Bluish, with a narrow silvci-y baud. 



The Andamans. 



H. LisiBATCs, Cuv. et Yal. 



B. X. ; D. 13-14 ; P. 10 ; Y. 6 ; A. l;J15 ; C. 14. 



Teetli minute, in many rows in both jaws, triouspidate. The lower caudal lobe 

 the longer. A brilliant silvery lateral bancl posteriorly, as broad as one scale. Dorsal 

 and top of tail sometimes blackish. 



Burma, in tidal rivers. 



H. BUFFONis, Cuv. et Yal. 



Eoo-door-rook-o-dah. Andamans. 



B. xi. ; D. 14 ; P. 10 ; Y. 6 ; A. 1012 ; C. 13. 



A barbel at the posterior nostril. Teeth conical in both jaws. Lower rays of 

 caudal slightly produced. A narrow silvery lateral streak, less than a scale broad, 

 below the dorsal. Upper half of dorsal black. 



The Andamans, and tidal rivers. 



H. ECTUNCTio, Ham. Buch. 



Nga-phoung-yo. 



B. X. ; D. 1314 ; P. 9 ; Y. 6 ; A. 10-12 ; C. 15. 



Upper jaw twice as long as its base is broad. Top of head flat. Teeth fine and 

 conical. Anal rays thickened in the male. Caudal rounded. Scales on the upper jaw, 

 none on the vertical tins. Dull grecnisli-brown, with an indistinct lateral band. End 

 of upper jaw milk white. 



Akyab aud Burma. 



H. DisPAR, Cuv. et Yal. 



B. x.-xi.; D. 11 12; P. 10; Y. 6; A. 11- 12; C. 15. 



Upper jaw as long as it is broad at the base. A nasal barbel. Caudal cut square, 

 or slightly rounded. Scales on the upper jaw, none oa the dorsal or anal fins. 

 The Andamans. 



E.voccETrs, Artedi. 



Pectorals elongated, so as to form an organ for Hying. Air-vessel large. 



