Mr. Wilson lias tried to naturalize the Murray Cod in the 

 rivers of the "Wimmera, but I believe without result. The 

 Acclimatisation Society has been more successful in its endeavours 

 to place it in the Tarra, and it seems to have considerably pro- 

 pagated in that river ; for, although no large specimens have yet 

 been found, small ones are seen rather frequently. The fish 

 seem to go down towards the sea, as Captain Sinnott most kindly 

 sent me a small specimen he caught in his dock, where the water 

 is already brackish. It is a little less than three inches in 

 length ; its colour is of a light grey, and the upper part of the 

 body is covered with small black spots ; the dorsal and the base 

 of the caudal are yellowish, and the extremity of the caudal rather 

 dark. 



The Murray Cod, as almost all the Australian fresh- water fish, 

 is often marked with red spots, caused by intestinal worms. 



Nota. — A young specimen, obtained in January, 1872, and 

 measuring six inches long, presented the following dimensions : — 

 Height four times and two-thirds in total length ; head three and 

 one-third in the same ; eye four and one-half in length of head. 

 It was of a light lilac on the back, with the lower parts of a 

 dirty white. On the sides and on the back were numerous 

 irregular blotches of a dark purple. 



DULES. 



This genus was established by Cuvier and Valenciennes. The 

 Australian sorts inhabit the rivers of the interior. 



DULES ATJEATTJS. 



(JMurray Golden Perch.) 



D. 10/11. A. f. P. 15. C. 17. L. 1. 76 (and 5 on Caudal). 



L. lat. 13/28. 

 Height three times and one-half in total length ; head three and 

 five-tenths in same ; eye five and two-thirds in the length of the 

 head ; and one and a-half in length of snout. Head cavernous ; 

 teeth on the palatines ; upper profile strongly convex on the 

 back, the snout being elongate. Prseorbital long, striated, and 

 finely serrated. Head covered with scales, except on its upj)er 

 surface ; lower jaw longer than the upper one ; prteoperculum 

 straight and equally serrated posteriorly, rounded and covered 



