11!) 



record of its occurence in Muskoka, hut it is probably erroneous. In 

 the immediate vicinity H. dentifera has never been ff)und. In the 

 Province of Quebec, it has an extensive range from Montreal as far 

 east at least as the IsLmd of Orleans and southward to Knowlton, in 

 the Eastern Townships, whence it extends into New Hampshire, 

 Vermont and New York. Near the brow of the shaly cliffs of the 

 Island of Orleans, opposite Montmorency Falls, seven fine specimens 

 were taken in an hour in August, 1S91. I'hey do not differ from the 

 Casselman shells except in being thinner. The occurence ot //. 

 dentifera at places so near to each other as Casselman and Montreal, 

 indicates that the shell may be found at intervening points. If the 

 Club would run an excursion to Alexandria next summer, the concho- 

 logical branch would probably attend in a body.— -F. R. Latchford. 



-:o: 



ZOOLOGY. 



Salvelinus O.^Uassa in the Oitawa Dis'rict. — A be.iutiful living 

 specimen of what I take to be a male Oquassa or Blue backed Trout, 

 sometimes called the " Rangeley Lake Trout", Salvelinus Oquassa, 

 Girard (sp.) can now be seen living in one of th j aquaria at the Fisheries 

 Exhibition on O'Connor Street in this city. This spec men, which has 

 been referred to me for identification, was recently obtained by Mr. 

 Vernon C. Nicholson at Lac de Marbre, in the Township of Wakefield, 

 Province of Quebec, who last year noticed the difference b^itween it 

 and Salveliniis fontinalis, Mitchell (sp.), the ordinary B;ook Trsj it of 

 the district. He killed at that time several specimens of S. Oquassa in 

 the above named lake. In another lake quite close to Lac de Marbre 

 the ordinary Brook Tr jut abounds ; but so far as Mr. Nicholson 

 observed the two species do not occur together. 



The specimen has been identified with S. Oquassa from external 

 characters only, and its hyoid bone has not been examined, but if 

 correctly determined, the occurrence of this species in the Province of 

 Quebec is of espec'al interest, as heretofore it has only been recorded 

 from Maine. 



According to Jordan & Gilbert, * the hyoid bone in 6", Oquassa 



* Synops. Fishes N. America. Smithson. Miscell. Coll., vol. xxiv (18S3), p. 318. 



