GREAT LAKES COREGONIDS 



561 



Table 6. — Frequency distribution of the total number of gill rakers on the first branchial arch for 

 each of the 11 species of Coregonidx in the Great Lakes — Continued 



Species and lake 



Hoyi: 



Nipigon .. 



Superior.. 



Michigan. 



Huron 



Ontario... 

 Artedi: 



Nipigon.. 



Superior.. 



Michigan. 



Huron 



Erie 



Ontario 



33 



34 



35 



36 



38 



39 



40 



2S 



43 



45 



46 



47 



49 



Species and lake 



50 



51 



52 



53 



54 



55 



56 



57 



58 



59 



60 



61 



62 



63 



64 



65 



66 



Total 



Johannse: 





































122 

 441 



383 

 417 



160 

 883 

 122 

 157 



97 

 234 

 406 



76 



213 

 152 

 53 

 129 



77 

 212 

 212 

 120 



162 

 331 

 1, 100 

 870 

 243 



71 

 248 

 391 

 302 

 313 

 191 



39 



33 

 109 

 151 

 193 

 100 



36 



2 

 63 

 26 

 67 



6 







































Alpena?: 









































































Zenit hicus: 

















































































































































Reighardi: 

































































- 



































:::::::::: 































1 











Nigripinnis: 



Nipigon 



49 



32 



12 



11 



4 



























Superior 



























Michigan... 



6 

 12 



5 

 7 



3 



2 





























































Kiyi: 



































































Huron 





































Ontario 





































Hoyi: 



Nipigon 





































Superior 









































































Huron. 





































Ontario 



1 



5 

 13 

 37 

 31 

 13 

 24 



































Artedi: 



Nipigon 



6 

 4 

 44 

 11 

 3 

 11 



2 

 4 

 22 

 6 

 1 

 8 



1 



3 

 14 

 1 

 2 



7 





























Superior.. 





























Michigan 



4 



4 

























Huron 

























Erie 































1 



3 



























Nipigon: 



Nipigon 



4 



10 



5 



1 



7 



2 



2 



2 



0 



1 



1 



1 



Glupeaformis: 



Nipigon... 











Superior . 





















I 



































1 















Huron 





















1 















Erie. 





















| 















Ontario 



































Quadrilaterale: 



Nipigon 



































Superior.. 



































Michigan 

























































































n~:~ 



































i 















