GREAT LAKES COREGONIDS 



617 



Table 73. — Records of the occurrence of Leucichthys artedi in Lake Superior 



[For each record is given, if known, the date and locality, the kind of gear used to make it, the depth of water and character of 

 the bottom where made, the abundance of this species in the lift, and the number of preserved specimens examined] 



Port from which 

 nets were set 



Sault Ste. Marie, 

 Mich. 



Grand Marais, Mich. 

 Marquette, Mich 



Ontonagon, Mich. 



Apostle Islands, Wis. 



Duluth, Minn 



Grand Marais, Minn. 



Port Arthur, Ontario 



Rossport, Ontario. 



Michipicoten Island, 

 Ontario. 



Coppermine Point, 

 Ontario. 



Batchawanna, On- 

 tario. 



Borrowed specimens: 

 Marquette, Mich. s . 



Duluth, Minn. 4 



Marquette, Mich.'. 

 Knife River, Minn. 8 

 Duluth, Minn. 4 -.. 

 Port Arthur, On 

 tario. 5 



Rec- 

 ord 

 No. 



Date 



June 14,1922 



Oct. 

 Feb. 

 Aug. 

 Aug. 

 Aug. 

 Nov. 

 Aug. 

 Aug. 

 Aug. 

 July 



3, 1917 

 8, 1921 

 5, 1921 

 9, 1921 

 11, 1921 

 — , 1925 

 16, 1921 

 24, 1921 

 25, 1921 

 11, 1922 



July 17, 1922 

 July 18,1922 



July 17,1922 



July 20,1922 

 Nov. 25, 1922 



Sept. 15, 1923 

 do 



Sept. 17, 1923 



Sept. 19, 1923 



Oct. 1, 1921 

 Oct. 4, 1921 



Mar. 10, 1922 

 Aug. 10,1922 



do 



Sept. 25, 1923 

 June 19, 1922 



June 26,1922 



June 17,1922 



Location 



10 miles NW. by W. 

 M W. of Point Iro- 

 quois Light. 



In the harbor 



31 miles N. % E„__ 



Marquette Bay 



18 miles NE. by N. 



54 miles W. by N 



21 miles west 



6 miles NNW. 



Between Cat and 

 South Twin Islands. 



20 miles NE. by E... 



In Grand Marais 

 Harbor. 



At mouth of Devils 

 Track River. 



Off Demers Point 



Thunder Bay, be- 

 tween Pie and Wel- 

 come Islands. 



North of Silver Island 



Thunder Bay, off 

 Thunder Cape. 



Thunder Bay, inside 

 Welcome Islands. 



Thunder Bay, off 

 Sawyer Bay. 



Off the town 



Off Bread Rock. 



Moffat Strait 



Off Armour Point 



Moffat Strait 



6 miles northeast of 



East-End Light. 

 Off Alona Bay 



Batchawanna Bay 



Gill- 

 net 

 mesh, 



in 

 inches 



VA. 2H 



CO 



2J4 2*A 



2^,2% 

 2H,2M 



2 5 A 



(0 

 (*) 



(0 



VA 

 VA 



VA 



CO 



2H.2M 



(0 



Depth, 



in 

 fath- 

 oms 



38 



10-11 

 100 



5 



100-80 



25-80 

 15-45 

 20-38 

 15-20 



30-40 

 1 



80-90 



4 

 4 



13-14 

 15-35 



3-13 



Bottom 



Sand. 



Red clay.. 

 Sand-clay. 

 Sand 



.do- 



Mud. 



Mud.... 



Grayish - brown 



clay. 

 do 



do... 



Grayish -brown 

 clay. 



Clay-sand- 



Clay-sand. 



Abundance 



Rare. 



Rare 



Occasional 

 Rare 



Rare... 

 ....do. 

 ....do- 



Occasional . 

 Abundant- 



Rare 



....do 



....do 



Occasional 

 Rare 



Common.. 



Preserved 

 specimens 

 examined 



+225 

 mm. 



2 





4 





4 



11 



4 





3 



11 



2 



1 



5 





1 





3 





8 





1 





2 





300 





300 

 8 





4 



12 





-225 

 mm. 



1 Pound net. 

 3 Seine. 



8 Field Museum collection. 



' University of Toronto collection. 

 J U. S. National Museum collection. 



