580 BULLETIN OF THE BUREAU OF FISHERIES 



Table 24. — -Records of the occurrence of Leucichthys zenithicus in Lake Superior — Continued 



Port from which nets were set 



Sault Ste. Marie, Mich. 



Grand Marais, Mich 



Marquette, Mich 



W. J. Parker ' 



Ontonagon, Mich. 



Apostle Islands, Wis. 



Duiuth, Minn 



Grand Marais, Minn. 



Port Arthur, Ontario. 



Rossport, Ontario. 



Port Cold well, Ontario __. 



Michipicoten Island, Ontario. 



Coppermine Point, Ontario... 



Marquette, Mich. 1 ... 



Devil Island 4 



Knife River, Minn.». 

 Duiuth, Minn.'. 



Rec- 

 ord 

 No. 



Bottom 



Reddish-brown clay. 

 Red clay 



Clay. 



Red clay 



Sand and clay 



Sand 



Red and yellow clay. 



Clay.. 



do 



Sand.. 



Clay.. 



do 



Mud 



Brownish-gray clay. . 



Clay 



Brownish-gray clay.. 



do 



Grayish-brown clay.. 



Clay 



do 



Blue clay. 

 Mud 



Length 

 of net, 

 in 

 feet 



1,800 



2, 500 

 2,500 



2,500 

 2,500 

 2,200 



3, 500 



500 

 500 

 500 

 1,000 

 1,000 

 1,000 

 1,000 

 1,000 



2, 500 



" 1,166 



Nights 

 set 



Number 

 of fish 

 gilled 



200 



250 

 200 



700 

 500 

 300 



2,000 



32 

 70 

 16 



121 

 50 



210 

 4 

 25 



75 



200 



Percent- 

 age of 

 zenithi- 

 cus 



+200 mm. —200 mm. 



( 2 ) 



97 



( 3 ) 



62 



100 

 92 



79 



87 



Preserved speci- 

 mens examined 



1 See note, Table 20. 



2 Abundant. 

 » Rare. 



* Field Museum collection, borrowed specimens. 



6 U. S. National Museum collection, borrowed specimens. 



Table 25. — Numerical expressions of certain systematic characters for the type of Leucichthys zenithicus 

 and for 19 other specimens from Lake Superior, 9 of them over 200 millimeters long and 10 under 

 200 millimeters, selected according to size 



Size 



Field 

 No. 



Locality 



Length 



Rakers 



Sex 



Scales 



L/H 



L/O 



L/DB 



L/AB 



L/DA 



L/AT 



L/D 



L/W 



D/W 



SD/H 



SD/O 



Over 200 



162517 



I slo Royale, 



278 



17+28 



& 



74 



3.7 



5. 1 



10.0 



8.7 



2.8 



9.0 



4.7 



9.0 



1.9 



1.8 



2.5 



m il 1 i - 





Mich. 

































meters. 



53882 



Rossport, 



265 



16+25 



9 



80 



3.9 



5.3 



9.4 



9.3 



2.8 



7.3 



4.0 



7.1 



1.7 



2.0 



2.7 





Ontario. 



































53888 



do.. 



254 



15+25 



9 



80 



4.0 



5.3 



9.0 



9.4 



2.8 



8.1 



4.2 



7.8 



1.8 



2.0 



2.7 





53894 



do 



266 



16+27 



9 



76 



4.0 



5.4 



9.4 



9.8 



2.8 



7.6 



4.1 



8.0 



1.9 



2.0 



2.7 





53897 



do. 



286 



15+27 



9 



79 



4.1 



5.5 



8.7 



9.2 



2.8 



8.1 



4.4 



8.2 



1.8 



2.0 



2.7 





53901 



do 



277 



15+25 



c? 



74 



3.8 



4.9 



8.9 



9.2 



2.8 



8.3 



4.3 



9.3 



2.1 



1.9 



2.4 





57033 



Michipicoten 



263 



16+28 



d" 



82 



4.0 



5.4 



9.7 



9.0 



2.7 



8.2 



4. 1 



8.2 



1.9 



2.0 



2.7 







Island, On- 





































tario. 



































57067 



Alona Bay... 



233 



15+24 



9 



83 



4.0 



5.2 



9.7 



9.7 



2.8 



6.7 



4.2 



8.6 



2.0 



2.0 



2.6 





58095 



Apostle Is- 



263 



15+25 



9 



75 



4.0 



5.2 



10.0 



9.7 



2.7 



7.7 



4.6 



9.3 



2.0 



2.0 



2.6 







lands. 



































58104 



do . 



257 



14+25 



9 



80 



4.0 



5.1 



10.0 



9.6 



2.7 



7.4 



4.5 



8.0 



1.7 



1.9 



2.5 



Under 200 



53380 



Marquette, 



155 



14+23 



& 



86 



3.7 



4.8 



9.8 



8.5 



2.9 



7.4 



4.4 



9.3 



2.1 



2.0 



2.5 



milli- 





Mich. 

































meters. 



53651 



Ontonagon, 



170 



15+23 



Im. 9 



81 



4.0 



5.6 



10.4 



10.4 



2.8 



7.4 



5.3 



8.9 



1.6 



1.9 



2.7 





Mich. 



































53655 



do 



185 



13+24 



Im. cT 



75 



3.8 



5.1 



9.7 



9.7 



2.8 



7.5 



4.4 



9.2 



2.0 



1.9 



2.5 





53661 



do.. 



195 



16+26 



& 



79 



4.0 



5.4 



8.5 



9.3 



2.7 



8.4 



4.4 



8.1 



1.8 



2.0 



2.6 





53805 



Grand M a- 



168 



16+24 



9 



79 



4.0 



5.2 



9.8 



9.7 



2.9 



7.3 



4.0 



8.4 



2.1 



2.0 



2.7 







rais, Minn. 



































57059 

 57820 



57832 

 57944 



58471 



Alona Bay... 



Michipicoten 

 Island, On- 

 tario. 

 do 



Whitef ish 

 Bay. 



Grand M a - 

 rais, Minn. 



188 

 191 



171 



189 



183 



13+23 

 14+24 



14+23 

 15+24 



14+23 



3 

 9 



& 

 9 



9 



80 

 80 



72 

 69 



76 



4.0 

 4.0 



4.0 

 3.9 



3.8 



5.1 

 5.4 



4.6 

 5.0 



5.0 



9.0 

 9.0 



10.5 

 9.8 



9.1 



8.2 

 10.1 



8.6 

 9.4 



8.7 



2.8 

 2.7 



3.1 

 3.0 



2.9 



7.8 

 7.3 



7.7 



8.5 



8.3 



4.5 

 4.5 



4.7 



5.2 



4.4 



8.7 

 8.6 



9.5 

 9.9 



8.1 



1.9 

 1.9 



2.0 

 1.8 



1.8 



1.9 

 2.0 



1.9 

 1.9 



1.8 



2.5 

 2.6 



2.4 

 2.5 



2.4 



'Type, U. S. National Museum number. 



