82 RECORDS OF THE AUSTRALIAN MUSEUM. 



scales. On the body they merge into simple prominent sub- 

 recumbent spines arranged in close longitudinal rows, which 

 extend to the bases of the caudal rays. The head and body bear 

 distant branched filaments, there is a sei'ies along the upper and 

 lower profile of the head and a close seines between the ventral 

 spine and the anal fin. 



Total length 230 mm. 



Zoc. —Houtman's Abrolhos. 



Colours. — The specimen is evidently much discoloured and is 

 now uniform pale brown, with scattered dark markings, princi- 

 pally disposed below the base of the dorsal rays. A larger spot 

 may be traced above the upper pectoral rays. The caudal bears 

 a few dark spots. 



The contour of this fish sufficiently distinguishes it from that 

 of the only other known species. It has the shape of a double- 

 rhomboid, one figure of which is formed by the head and body 

 and the other by the tail. The hinder profiles of the body pro- 

 duce an acute angle, whereas in C. j^^^iict^^t^errt*, Cuvier, they 

 form a semicircle ; the tail of the latter, also, is not produced as 

 in the new species. 



I associate with the species the name of Mr. A. K. McCulloch 

 to whom I owe the figure of this and the other species illustrating 

 the paper. 



Akacana lenticulakis, Richardson. 

 Ostracion lenticularis, Richardson, Proc. Zool. Soc, 1841, p. 21. 

 Log. — Fremantle. 



Aracana aurita, Sha/v. 

 Ostracion auritus, Shaw, Nat. Misc.,ix., 1798, pi. cccxxxviii. 

 Loc. — Fremantle. 



8ph^roides sceleratus, Gmelin. 

 Tetraodon sceleratus, Gmelin, Syst. Nat., ed. xiii., 1789, p. 1444 

 Loc. — Fremantle. 



