







SALMONOIDEiE. 





YTc 











Dimensions 













Of the prepared specimen. 













Inche 



5. Lines. 



Inches. 



Lines. 



Length 



from tip of upper jaw to upper 



extre- 







Length of last ray of dorsal . . . 



1 



3 



mity of caudal . 





20 



4 



„ adipose fin . 







7 



yj 



„ end of central caudal rays 



19 



6 



„ pectorals .... 



3 



5 



j> 



„ end of scales on ditto . 



. 



18 



3 



„ ventrals .... 



2 



10 



J? 



„ anus 



. 



13 



6 



„ ventral appendages . 







7 



>j 



„ beginning of dorsal 



. 



8 



3 



,, longest ray of anal 



2 



3 



3J 



„ edge of suboperculum 





4 



11 



d 2 



„ last ray of ditto 



1 







■» 



„ nape 





2 



8 



„ attachment of ditto 



1 



5* 



J? 



„ centre of pupil 





1 



7 



„ lobes of caudal 



3 



4 



?J 



„ edge of orbit 





1 



3 



„ longest rays of ditto 



3 







J» 



„ centre of pupilto edge 



jf sub- 







„ central rays of ditto . 



1 



6 



operculum .... 





2 



8i 



Depth of caudal fork .... 







8 



»* 



posterior angle of orbit tu 



ditto 



2 



5 



Distance between anus and tip of caudal . 



7 



2 



u 



jf transverse axis of orbit 



. 







81 



„ between anal or adipose fin and 







J? 



vertical ditto 









5 



base of caudal .... 



2 







« 



intermaxillary . 



. 







64 



„ ditto or ditto to end of scales on late- 







?> 



labial .... 



. 



1 



10i 





3 



3 



?i 



lower jaw . 



. 



2 



9 



Depth of body at the dorsal . 



3 



6 



jj 



toothed margin of ditto . 



. 



1 



5 



Breadth of occiput ..... 



1 



n 



3> 



attachment of dorsal . 

 longest rays of ditto 





2 

 2 



3 



6 



„ between the orbits 



1 



5 



[67.] 



7. Salmo Hoodii. 



(Richardson.) The Masamacush. 







The Masamacush. Hutchins's Mss. 



Salmo Hoodii. Richardson, Nat. Hist. App. Ross's Voy., p. lviii. 



Plate 82, f. 2. Plate 83, f. 2, one-third nat. size. Plate 87, f. 1, head nat. size. 



This Char, well known in the fur countries by its Cree appellation of Masa- 

 mecoos, is common in every river and lake from Canada to the northern extremity 

 of the continent. It is voracious, and readily takes a cod-hook baited with a piece 

 of sucking-carp, pork, deer's heart, or the belly of one of its own species. We 

 took many at Fort Enterprise in March, in gill-nets set under the ice, in the neigh- 

 bourhood of an open rapid by which the waters of Winter Lake were discharged 

 into a river that remained frozen up until June. At that time their stomachs 

 were filled with the larvse of insects. During the summer this fish is supposed to 

 retire to the depths of the lakes, but it reappears in smaller numbers in the autumn, 

 and is occasionally taken in the winter in nets, but seldom, by the hook, except 

 in the spring. The spawning season is in April or May, judging from the great 

 development that the spawn then acquires, though the spawning beds are unknown 

 to us. The masamacush attains a weight of about eight pounds, but begins to 

 spawn before it weighs more than two or three. 



Two representations are given of this species, the one (Plate 82, f. 2) being 



