60 The Ottawa Naturalist. IJune 



mergansers, &c, which visited other waters and returned to 

 Pembina Lake with the eggs adhering to them. As is well known, 

 suckers and carp are most destructive to spawn. However, I 

 sincerely hope tnat the multitudes of trout in the Pembina will 

 annihilate these suckers in a short time. Future observations 

 on this subject will be eagerly expected and prove interesting. I 

 have obtained a sample of this little fish." 



The following is a list of fishes of the Ottawa District pre- 

 served in formalin in the collection of the Fisheries Museum, with 

 the localities were they were found : 



Silvery lamprey (Ichthyomyzon concolar). Ottawa River. 



Rock sturgeon (Acipenser rubicundus). Lac des Chene. 



Gar-pike (Lepidosteus osseus). Vicinity of Ottawa. 



Dog-fish {Amia calva). Ottawa River. 



The two specimens of dog-fish have been long in the museum, 

 and are labelled Ottawa River. Possibly they may have been 

 found beyond the limits of the district, but are included in the list 

 as shewing that that species exists in the Ottawa. 



Horned pout (Ameiurus nebulosis). Gilmour's Mills, P.Q-, Rideau 

 Canal near Ottawa, and Kinburn, Ont. 



White sucker (Catostomus commersonii). Vicinity of Ottawa. 



Eel (Anguilla chrysypa). Gilmour's Mills. 



Brook Trout (Salvelinus fontinalis. Gatineau District, near Ottawa. 



Pike (Esox hicius), Gilmour's Mills, and a large head from Shir- 

 ley's Bay. 



Killifish (Fundulus). Hull, P.Q. 



Brook stickleback (Eacalia irtconstans). Stittsville, Ont. 



Grass or calico bass (Pomoxis sparoides). Lewis Dam and Gil- 

 mour's Mills, P.Q. 



Rock bass (Ambloplites rupestris). Near Hog's Back. 



Pike perch (Stizostedion vitreuni). Upper Ottawa River. 



Ling (Loto maculosa). Lac des Chene and Rideau River, near 

 Ottawa. 



There is also a large mounted maskinonge (Esox nobilior) 



