334 DESCRIPTIVE CATALOGUE OF AUSTRALIAN PISHES, 



103-5. Ostracton cornutus, Linn. 



Gunth., Cat. Fishes, VIII., p. 265.— Hollard, Ann. Sc. Nat. 1857, 



VII., p. 158. 



Carapace four-ridgedj forming- a broad bridge across the hack 

 of the tail. A long conical spine above each orbit, pointing 

 forwards. Each ventral ridge terminates behind in a similar 

 long spine pointing backwards. Each dorsal ridge with a slight 

 prominence in the middle of its length, but it is not developed 

 into a spine. Median line of the back slightly raised, without 

 spine. Inter-orbital space deeply concave. Caudal fin very long 

 in adults, with simply bifid rays. Carapace and tail with round 

 bluish and blackish spots in moderate number, of the size of the 

 pupil of the eye. 



Port Jackson, Endeavour River. Length fourteen inches. 

 B. Carapace not closed hehind the anal fin. ( Aracana, Gray). 



1036. Ostracion auritus, Shaw. 



Richards., Trans. Zool. Soc, III., p. 1G0, pi. 0. — Gunth., Cat. 



Eishes, VIIL, p. 260. 



Back without, abdomen with a crest. Spines : one above the 

 hind part of the orbit pointing backwards ; two on each side of 

 the back, rather close together ; one in the middle of the side ; 

 and two or three on each side of the abdomen. Anterior profile 

 of the snout without hump. Head and body with longitudinal, 

 more or less undulated brown (silver or golden) stripes, much 

 narrower than the interspaces ; there are four of them on each 

 check. In old preserved specimens the ornamental colours 

 disappear, the entire fish being of almost uniform coloration. 



Tasmania, South Australia. Length six inches. 



1037. Ostraciox OBNATUS, Gray. 



Richards., Trans. Zool. Soc, III., p. 161-5. pi. 10 — 1 1.— Gunth. 

 Cat. Fishes VIIL, p. 267. 



