cclxxv 



185. Exostoma Berdmorei, Blyth. D. £/0, A. 6. Eight barbels. 

 Snout pointed. Caudal forked. Tenasserim Provinces. 



Family — Scombresocice. 



Pharyagognathi malacopterygii, Muller. 



Pseudobrancbise concealed, glandular. Margin of upper jaw formed mesially by 

 tbe inter-maxillaries : laterally by tbe mamillaries. Barbels present or absent. 

 Lower pharyngeals united into a single bone. Dorsal fin rayed, with or with- 

 out Unlets posterior to it, and situated opposite the anal and in the caudal portion 

 of the vertebral column, no adipose dorsal. Body scaled : usually a keeled row 

 along either side of the free portion of the tail. Air-vessel generally present : 

 sometimes cellular, and destitute of a pneumatic duct. Stomach and intestines in 

 one straight tube, without division, and not having, any pyloric appendages* 



Genus — Belone, Cuv. 



BrancMostegals rather numerous. Body elongated, sub-cylindrical, 

 or compressed. Gill-openings wide. Eyes lateral. The jaws prolonged 

 into a long beak, the upper being formed of the inter-maxillaries* Fine 

 teeth or rugosities in both jaws, with a single row of long, widely set 

 conical ones. No finlets posterior to dorsal fin ; caudal usually forked. 

 Scales small. Lateral line on free portion of tail, with or without a keel. 



136. Belone cancila, Ham. Buch. Kung-gah, Co-wa, Sou-ah and Ka- 

 haan, Panj. : Gon-gi-turi, Ooriah : Nga-oh-poung-yoh, Nga-phou-yo, Burm. 

 B. x. D. 16-17, A. 16-17. Lateral line not keeled. Four or five dark 

 blotches between the bases of the pectoral and anal fins. Throughout 

 the waters of the plains of India and Burma. 



Genus — Hemieamphus, Cuv. 



Hyporhamphus, Enleptorhamphus, Zenarchopterws, and Oxyporham- 

 ph/cs, Gill : Dermatogeuys, (K. and v. Hass.) Peters : Hemiramphodon y 

 Bleeker. 



BrancMostegals rather numerous. Body sub-cylindrical and elongated. 

 Eyes lateral. Upper jaw, which is formed of the inter-maxillaries, is more 

 or less triangular and short, whilst the lower jaw is elongated far beyond 

 the upper, which prolongation is not so apparent in the immature. Teeth 

 villiform in both jaws. No finlets posterior to the dorsal fin : pectoral may 

 or may not be prolonged : caudal mostly forked or emarginaie, sometimes 

 rounded. Scales of moderate or large size. Air-vessel large, sometime 

 cellular. Dorsal and anal rays may be modified. Some viviparous. 



137. Hsmiramphus amblyurus, Bleeker. Nga-phov.ng-yo, Burm. T). 

 13-14, A. 10-12, L. 1. 48. Viviparous. An indistinct silvery lateral band. 

 Mouths of the Ganges and other large rivers of Bengal and Burma, 

 extending its range to above tidal influence. 



Family — Cyprinodontid^t. 



Branchiostegals from four to six : pseudobranchise absent. Eyes lateral : margin 

 of upper jaw formed entirely by the inter-maxillaries. Barbels absent. Teeth 

 in both jaws, likewise in the superior and inferior pharyngeal bones. One 

 spineless dorsal situated in the posterior half of the body. Stomach without 

 cul-de-sac. No pyloric appendages. Air-vessel simple, destitute of connection 

 with the auditory bones. 



