BY W. MACXEAY, F.L.S. 257 



apparatus much developed, the gill-openings being generally 

 very wide. Pseudobranchiao large except in Megalops. Air- 

 bladder more or less simple. 



Genus Exgraulis, Cuv. & Yal. 



Body oblong, compressed. Scales large or of moderate size. 

 Snout more or less conical, projecting beyond the lower jaw. 

 Generally small teeth in the jaws, on the vomer, palatine and 

 pterygoid bones. Intermaxillaries very small, hidden ; maxillary 

 long, attached to the cheek by a scarcely distensible membrane. 

 Anal fin of moderate or great length. Union of the gill-membranes 

 very short, leaving the isthmus uncovered, the gill-openings being 

 extremely wide. Branchiostegals short, from nine to fourteen 

 in number. 



Temperate and tropical seas, entering rivers. 



885. Engraulis antarcticus, Casteln. 



Proc. Linn. Soc. N.S.Wales, Vol. IV., p. 365. 



1 

 Victoria and Tasmania. 



886. Engraulis nasutus, Casteln. 

 Proc. Linn. Soc. N.S. Wales, Vol. IV., p. 367. 

 Norman River. 



Genus Chatoessus, Cuv. & Val. 



Body compressed, abdomen serrated. Scales of moderate size. 

 Snout obtuse, or obtusely conical, more or less projecting beyond 

 the cleft of the mouth, which is narrow, and more or less 

 transverse. The maxillary is joined to the ethnoid bone, its upper 

 portion being behind the intermaxillary. Teeth none. Anal fin 

 rather long ; dorsal opposite to the ventrals or to the space 

 between the ventrals and anal. Gill-membranes entirely 

 separate ; branchial arches forming two angles, one pointing 



