Zoology.] 



NATURAL HISTORY OF VICTORIA. 



[Fishes. 



Salmonidce. In Sydney it is popularly called the " Sergeant 

 Baker." The males have much more elongate anterior rays to the 

 dorsal fin and have much duller colors in less distinct patches, the 

 top of the head brownish and rich dark-purple, fading gradually to 

 whitish on belly ; cheeks, operculum, and some round spots on top 

 of head vermilion and carmine, and indistinct rosy blotches on 

 sides ; caudal purple, with 3 rows of reddish blotches ; pectoral 

 dark -grey with 3 or 4 transverse bands of darker spots ; ventrals 

 purplish with 3 rows in front and 5 rows behind of darker purple 

 and lighter spots on the rays ; anal light-grey, with 5 or 6 rows of 

 lighter oblong spots in front, becoming darker purple behind ; front 

 of dorsal orange, hind part of dorsal grey with numerous darker 

 blotches on the membranes of purple, front rays of dorsal red. 



The hollowed top of the head and the character of the rays of 

 the ventral fin, as well as the coloring, resembles the Scorpcence, in 

 which such simple large unarticulated rays occur in the pectoral. 

 The extraordinarily large number of the branchiostegal rays 

 separates it from the other families completely. 



The first ray of the dorsal in both sexes is spinous, simple and 

 shortest. The second ray bifid and longest, but only slightly 

 exceeding the third and fourth much-branched rays in the female ; 

 while in the male the anterior filament is prolongued to a length 

 about equalling the distance from its base to the adipose dorsal, 

 while the posterior filament ends at little more than half its length ; 

 the first filament or branch of the third ray is rather less than 

 half the length of the second ray. 



The following are the detailed measurements of two of the 

 specimens in the Museum : — 



Measurements. 



Male. 



Female. 







ins. lines. 



ins. lines. 



Length from snout to distal end of middle of caudal 



.. ... 



21 3 



18 



„ of caudal to middle 



.. ... 



1 3 



1 1 





, of caudal to end of lobes 



«• ... 



2 11? 



3 2 





, from snout to anterior edge of orbit 



.. 



1 7 



1 5 





, of orbit 



.. ... 



10 



10 





, of head from snout to end of operculum 



.. 



5 1 



5 





, from snout to anal (measured along ventral edge) 



.. 



13 



11 9 





, from front of anal to end of middle of caudal ... 



.. ... 



8 3 



6 6 





, from snout to base of pectoral 



.. ... 



5 6 



5 





, from snout to origin of 1st dorsal 







6 9 



6 



[ 20] 



