262 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



attached to the mandibulary symphysis between the mandibles. 

 Snout obtusely conical ; mouth anterior, lower jaw prominent ; 

 intermaxillary short, the maxillary forming the lateral part of 

 the mouth. Bands of villiform teeth in the jaws, on the vomer, 

 palatine and pterygoid bones, on the tongue and on the base of 

 the skull. Dorsal fin opposite to, or immediately behind, the 

 ventrals ; anal rather longer than the dorsal. Gill-membranes 

 entirely separate ; with numerous branchiostegals. Pseudo- 

 branchire none. Pyloric appendages numerous. 



Tropical seas, entering rivers. 



903. Megalops cyprixoides, Brouss. 

 Proc. Linn. Soc. N.S. Wales, Vol. IV., p. 383. 

 Hawkesbury Piver. 



Genus Ciianos, Lacep. 



Body oblong, compressed ; abdomen flat. Scales small, striated, 

 adherent ; lateral line distinct. Snout depressed ; mouth small, 

 anterior, transverse, the lower jaw with a small symphysial 

 tubercle. Intermaxillary in juxtaposition to the upper anterior 

 edge of the maxillary. Teeth none. Dorsal fin opposite to the 

 ventrals ; anal small, shorter than the dorsal ; caudal deeply 

 forked. Gill-membranes entirely united below, and free from 

 the isthmus. Branchiostegals four, long. PseudobranchiaB well 

 developed. An accessory branchial organ in a cavity behind the 

 gill-cavity proper. Air-bladder divided by a constriction into an 

 anterior and posterior portion. Mucous membrane of the 

 oesophagus raised into a spiral fold. Pyloric appendages numerous ; 

 intestine with many convolutions. 



Indian and Pacific Oceans. 



904. Ciiaxos salmoxeus, Bl. 

 Proc. Linn. Soc. N.S. Wales, Vol. IV., p. 383. 

 Port Jackson (rare), North Coast. 



