i65 



Compressed, the breadth of the body going 1.5 in its height. 

 Height 9.1 — 9.9, 10.5 — 12.2 in length with caudal. Head from 

 tip of upper jaw to branchial opening 2.7 in trunk. Entire 

 head 2.5 — 2.6, 2.8 — 3 in length with caudal. Length of lower 

 jaw beyond extremity of upper jaw 5 — 6.2 in length, 6 — 7.1 

 in length with caudal. Eye twice in postorbital part of head, 

 less than interorbital space. Triangular part of upper jaw nearly 

 twice as long as broad, scaly. Praeorbital more or less rounded, 

 much shorter than eye. Teeth conical, curved backwards, in 

 bands of about three rows in the upper jaw; in the lower 

 jaw bands of smaller teeth, tapering forwards. Origin of anal 

 below 4th dorsal ray. Base of anal almost thrice in that of 

 dorsal. No dorsal rays are enlarged or prolonged. Sixth and 

 7th anal ray enlarged and swollen but not much prolonged. 

 Posterior rays of anal very small. Pectorals about equal to 

 the distance between the hindborder of the operculum and 

 the corner of the mouth. Ventrals about equal to postorbital 

 part of head, twice nearer to caudal than to frontborder of 

 eye or corner of mouth. Caudal obtusely rounded. Colour of 

 preserved specimens brownish, with a faint lateral silvery band 

 bordered above, below dorsal, and on tail by a black stripe, 

 ending in a dark blotch at base of caudal. Fins hyaline, front- 

 border of anal and lower border of caudal blackish. Length 

 160 mm. 



Habitat: New Guinea (river Merauke!). 



In brackish water. 



2. Zenarchopterus ectuntio (Ham. Buch.) 



Esox ectuntio Hamilton Buchanan, Fishes Ganges 1822, p. 212, 380. 

 Hemiramphus amblyurus Bleeker, Verh. Bat. Gen. XXII. (1848) 1849, Madura 



p. II. — Ibid. XXIV. 1852, Snoekacht. Vissch. p. 16. 

 Heiiiiramphus horneensis Bleeker, Nat. Tijdschr. Ned. Indie I. 1850, p. 273. — 



Ibid. II. 185 1, p. 68. — Verh. Bat. Gen. XXIV. 1852, Snoek. p. 23, 25. 

 Hemirhamphus Bkckeri Kner, Sitz.ber. Akad. Wien XXXIX. i860, p. 537. 

 Zenarchopterus amblyurus Bleeker, Ned. Tijdschr. Dierk. III. 1866, p. 160. 

 Hemirhamphus amblyurus Giinther, Cat. Brit. Mas. VI. 1866, p. 273. 

 Zenarchopterus amblyurus Bleeker, Atl. ichth. VI. 1866 — 1872, p. 61. 

 Hemirhamphus ectuntio Day, Fishes of India 4°, 1878 — 1888, p. 517. 

 Hemirhamphus ectuntio Vinciguerra, Ann. Mus. Civ. Geneva (2) IX. 1890, p. 349. 

 Hemirhamphus amblyurus Volz, Zool. Jahrb. Abth. Syst. XIX. 1903, p. 395. 



D.I. 12— 13; A. 2.8— 10; P. 8; V.I. 5; L.l. 48 — 50. 

 Compressed, the breadth of the body going 1.5 — 1.6 in its 

 height. Height 11. 3 — 13, 12.8 — 14.5 in length with caudal. 



