BY W. MACLEAY, F.L.S. 245 



Gill-openings very wide. Intestinal tract simple, without pyloric 

 appendages. Air-bladder large. 



Tropical Seas, sometimes entering fresh waters. 



867. Hejiirhamphus intermedins, Cant. 

 Gunth., Cat. Fishes VI., p. 260. — H. melanochir, Cuv. & Val. 



" The Gar Fish" of the Sydney Market. 



D. 15-17. A. 18-20. P. 11. 



Scales of moderate size, very deciduous. The length of the 

 entire head is contained twice and three-fourths or twice and 

 four-fifths, in the total (without caudal), the length of the lower 

 jaw beyond the extremity of the upper, five times and a half. 

 The triangular part of the upper jaw, formed by the inter- 

 maxillaries, is longer than broad. The diameter of the eye 

 equals the width of the interorbital space, and is contained once 

 and a half or once and two-thirds in the length of the postorbital 

 part of the head. Preoorbital as long as high. The root of the 

 ventral fin is midway between the base of the caudal and that of 

 the pectoral. Dorsal and anal fins scaleless, the origins of both 

 nearly opposite. Caudal fin emarginate, the central ra} r s much 

 longer than the eye. Back dark greenish ; sides with a well 

 defined silvery band. Pectorals blackish. 



Port Jackson, Melbourne, Brisbane, and "West Australia. 



868. Hemirhampiitjs regttlaris, Gunth. 

 Gunth., Cat. Fishes VI., p. 261. 



"Hirer Gar Fish" of Sydney Fishermen. 



D. 15. A. 17. L. lat. 58. 



The length of the entire head is a little more than one-third 

 of the total (without caudal), the length of the lower jaw beyond 

 the extremity of the upper, one-half the length of the head. The 

 triangular part of the upper jaw, formed by the intermaxillaries 

 is much broader than long. The diameter of the eye is rather 



