491 



j^oc. — East of Flinders Island, Bass Strait, 40 fathoms; 

 -off the mouth of the Murray River, South Australia, 20 

 fathoms; Glenelg, Gulf St. Vincent, South Australia; nine 

 to 10 miles west of Glenelg, Gulf St. Vincent, 10-12 fathoms; 

 Henley Beach, Gulf St. Vincent. 



Klunzinger •'7) has recorded A. ornata from Port Darwin, 

 but this locality is doubtless incorrect. As far as known, the 

 species is confined to Victoria, South Australia, and 

 Tasmania. 



Aracana flavigaster, Gray. 



PI. XXV. 



Ostracion (Aracana) flavirjaster. Gray: Ann. Mag. Nat. 

 Hist., i., 1838, p. 110; Richardson: Trans. Zool. Soc, iii., 1849, 

 p. 164, pi. xi., fig. 1. 



Acerana flavigastw, Kaiip : Arch fiir Natiirg., xxi., 18oo, 

 p. 219. 



Aracana, flavigastra, Fowler: Proc. Acad. Nat. Sci. Philad., 

 1907 (1908), p. 439. 



Aracana amoena, Oastelnau : Proc. Zool. See, Vict., i., 1872, 

 p. 207; Macleay: Proc. Linn. Soc, N.S.W., vi., 1881, p. 335. 



D. 9-11; A. 10-11; P. 1 + 10; C. 11. 



Length of head 3'07-3'2, depth of body 1*4 in the 

 length without the caudal rays. Narrowest interorbital width 

 l*9-2"05 in the head, and greater than the orbital diameter, 

 which is 2*3-2*6 in the head. Longest pectoral ray 1*4, 

 dorsal 1*3, anal 1*5, and median caudal ray 1*4 in the 

 head. 



Snout slightly compressed, oblique, gibbous above in 

 larger specimens. Interorbital space flat, the supraorbital 

 margins scarcely elevated. Back broad, almost flat. Abdomen 

 compressed, keeled; its profile variable, being almost evenly 

 arched in our largest specimen, and more or less flattened in 

 the smaller ones. A long compressed spine above the middle 

 of each e^^-e, directed upward and sometimes slightly forward. 

 Two large compressed supralateral spines inclined backward. 

 A large mediolateral spine is present in the small specimens, 

 but is reduced in the larger one. Two or three infralateral 

 spines, the anterior placed below the hinder base of the 

 pectoral fin, and the posterior below the dorsal fin; a smaller 

 one may be present midway between these two, but is wanting 

 in the largest example, and the other spines are reduced. 



Carapace uniformly granular. The scutes are rather 

 widely separated in front of the gill-opening, and somewhat 

 irregular naked areas are present on the posterior portion of 

 the back and abdomen. Small scutes are present behind the 

 dorsal and anal fins, and on the upper and lower surfaces of 



(V) Klunzinger : Sitzb. Akad. Wiss. Wien., Ixxx., p. 424. 



