NO. 1662. NEW LAKE TIERRINCm— JORDAN AND EVERMANN. 17^ 



The Bluefin above mentioned is also a deep water Cisco, with the 

 body robust and the scales firm; head 4^ in length; depth 3f; 

 maxillary reaching front of eye, 2f in head; fins, pale; the dorsal 

 and caudal with the upper edge of pectoral dusky. The species 

 reaches a larger size than the common herring, the specimen above 

 noted, but not preserved, being 13| inches in length. Having no 

 specimens at hand, we refrain from naming this species. The Bluefin 

 is not a good food-fish, being rather poor and dry, the flesh rather soft. 



The Longjaw, described as Argyrosomus senithlcus, is a good fish 

 for smoking. The flesh is soft, but it has a delicate flavor when fresh, 

 though poor and bony after freezing. 



NOTE ON THE SPECIES OF WHITEFISH. 



In this connection it may be noted that the common "\ATiitefish of 

 Lake Superior is the species called Labrador "VVhitefish, Coregonus 

 labradoi'icus Richardson, characteristic of the Lake of the Woods and 

 of the Canadian lakes generally, and that it is apparently distinct 

 from the Whitefish of Lake Erie and Lake Ontario. 



The Lake Superior Whitefish was first named Salmo clupeaformis 

 by Mitchill, whose specimens came from the Sault Sainte Marie. 

 Only the Labrador "V^/liitefish is found at Sault Sainte Marie, where 

 it was formerly netted or speared in large numbers by the Indians 

 and where it still readily takes the hook. Large numbers are hooked 

 every day, in the locks of the ship canal, by local anglers. . The Erie 

 Whitefish does not take the hook. The technical differences separa- 

 ting the two species are slight, but apparently constant. 



Mr. Harry Marcks, director of the fish hatchery at Sault Sainte 

 Marie, tells us that the eggs of the Superior Whitefish are different 

 from those of the Lake Erie Whitefish, being larger and darker in 

 color. The fry are also distinguishable, those of the Superior White- 

 fish being much livelier and having two dark lines along each side. 



The Lake Superior "Wliitefish must therefore stand as Covegonus 

 clupeaformis (Mitchill), or clupeiform.is^ if we demand correct spell- 

 ing. The TV'liitefish of Lake Erie is Coregonus alhus Le Sueur. The 

 Whitefish seen by us in Georgian Bay and a series received from Che- 

 boygan in Lake Michigan belong to Coregonus clupeiformis. The 

 same species is found in Rainy Lake, Lake of the Woods, and Lake 

 Winnipeg. 



The synonj^my of the two species should stand as follows : 



COREGONUS CLUPEAFORAJIS (Mitchill). 



Salmo clupeaformis Mitchell, Amer. Monthly Mag., II, 1S18, p. 321; Sault 



Sainte Marie. 

 Coregonus lahradorieus Richardson, Fauna Bor.-Amer., Ill, 1836, p. 20G; 



Musquaw River, Labrador. 

 Coregonus sapidissimiis Agassiz, Lake Superior, 1850, p. 344 ; Lake Champlain 



" type," after Thompson ; and Lake Superior. 



