120 " THETIS " SCIENTIFIC RESULTS. 



PARALICHTHYS ARSIUS, Buclanan- Hamilton. 



Large-toothed Flounder. 



(Fig. 8). 



Pleuronectes arsius, Ham.-Buch., Fish Ganges, 1822, p. 128. 

 Pseudorlwmhus russeUli, Bleek., Atlas Ichth. Pleuron, vi., 1866-72, 

 p. 6, pi. ccxxxiii., fig. 2. 



Stations 1, 6, 9, 11, 12, 21, 22, 23, 25, 26, 27, 32, 41, 42, 43, 44, 46, 

 47, 49, 50, 51, 54, 55, 57, 58. 



Described as being essentially a tropical species, the Large- 

 toothed Flounder did not appear to be a whit less common in 

 Shoalhaven than in the Manning Bight (Station 27), and, there- 

 fore, probably extends along the whole length of the seaboard of 

 the Colony. Station 54, our most southerly haul, was within 

 Jervis Bay. This flounder was taken most freely in the shallower 

 water, and the greater depth — up to 80 fathoms — yielded but 

 one or two examples. 



It is immediatel}^ separable from the two following species 

 by the dentition, the canines being of such size as to have 



earned for the species the popular 

 name here given. There are six gill- 

 rakers on the posterior and thirteen 

 on the lower border of the first arch ; 

 their tips are broad and slightly re- 

 curved, with the upper border beset 

 with six or more spinules irregularly 

 arranged (fig. 8). 



■p- Q A scale taken from behind the 



curvature of the lateral line has at its 

 free edge about thirty strong marginal teeth and about six rows 

 of smaller teeth at the base of the marginal series. 



PARALICHTHYS jSTOV^-CAMBRI^, Ogilbr/. 

 (Fig. 9). 



Paralichthi/s novcs-cronbrice, Ogil. Proc. Linn. Soc. N.S.W., 



1898, xxiii., p. 296. 

 Pseudot'homhus mtdtimaculatus (non Giinther), Ogil. Edible 



Fishes, N.S.W., 1893, p. 157, pi. xxxviii. 



Stations 1, 9, 10, 22, 23, 24, 26, 27, 31, 39, 50, 51, 52, 54, 58. 



Hitherto this flounder has been recorded on our coast only 

 between Cape Hawke and Botany Bay. The former point was 

 within twenty miles of the northern limit of our operations, so 



