GREAT LAKES COREGONIDS 



565 



TaSle 8. — Frequency distribution of the ratio between the length of the body and the length of the head 

 (L/H) for each of the 11 species of Coregonidse in the Great Lakes — Continued 



Species And lake 



4.6 



4.7 



4.8 



4.9 



5 5.1 



5.2 



5.3 



5.4 



5.5 



5.6 



Nigripinnis: 



Nipigon.. 























Superior 















































Michigan — _ — 



1 



1 





















Huron 





















Kiyi: 



Superior. 

























Michigan.. 























































— - 1— -'. 























































Hoyi: 



Nipigon 2 

































1 















Michigan... 



1 



























1 









— 































1 























Artedi: 























Superior- 



1 

 37 

 14 

 15 



8 

 34 



9 

 31 



3 

 31 



2 























11 

 1 

 10 



5 

 1 



5 



1 



2 



2 













Michigan.. 















2 















Huron 

















14 

 1 



26 

 2 

 28 



6 

 1 

 13 



2 



1 





























4 



5 





1 











Ontario 













5 



1 



1 















Nipigon: 



Nipigon 



































Clupeaformis: 1 



Nipigon... 



4 



27 

 22 

 28 



2 

 28 

 18 

 55 

 5 

 6 



1 

 1 



1 



21 

 27 

 46 

 5 

 8 



















Superior.. 



11 



8 

 21 



2 

 8 



4 

 4 

 19 



5 

 3 



1 



15 

 1 

 4 

 20 

 16 

 1 















Michigan 



2 

 1 



3 



1 









Huron 









Erie. 





1 









Ontario 



6 



1 



1 









Quadrilaterale: 



Nipigon 











Superior 



1 

 3 



11 

 2 



14 



3 

 1 

 3 

 8 

 1 



14 



3 

 1 

 5 

 2 

 7 

 2 



3 









Michigan. 











5 

 8 

 14 



7 



7 



4 



1 



Huron 





2 

 7 



4 

 11 



4 



4 









Ontario 







1 



















Total 



219 

 3 

 160 

 51 

 130 



77 



125 

 44 

 20 

 190 

 131 



174 

 331 

 139 

 1,010 

 873 

 254 



13 



68 

 181 



71 

 138 

 146 

 207 

 133 

 155 

 125 

 198 



50 



42 



34 

 109 

 124 

 192 

 18 

 39 



2 

 62 

 17 

 34 

 39 

 72 



1 Mostly specimens over 200 millimeters long. 



2 Mostly specimens under 200 millimeters long. 



Table 9. — Frequency distribution of the ratio between the length of the head and the diameter of the eye 

 (H/E) for each of the 11 species of Coregonidse in the Great Lakes 



[Numbers at the top of the columns indicate the classes of ratios; entries beneath these are the numbers of each form, by classes; 

 numbers in the last column give, for each group, the total numbers of specimens included in the table. The various species in 

 each lake often are divided into two size groups. The numbers expressing millimeters, given after the name of the lake, indicate, 

 when preceded by a plus (+) sign, the lower length limit of specimens of the group; when preceded by a minus (— ) sign, the 

 upper length limit] 



Species and lake 



Johannse: 

 Michigan 

 Huron 



Alpenae: 



Michigan 



Huron... 



Length, 

 in milli- 

 meters 



+200 

 +200 

 -200 



+210 

 -210 

 +210 

 -210 



3.1 



3.2 



3.3 







3.6 



3.7 



3.8' 



3.9~ 











•xr- 



3.5 



- 4 - 



"4.1 



4.2 



4.3 





















1 

 2 

 15 



5 

 2 

 4 



55 



5 

 9 

 23 



8 

 3 

 2 

 33 



4 

 15 

 23 



37 

 4 

 7 



19 



9 

 20 

 13 



40 

 3 

 5 



11 



















1 



6 



1 

 0 













1 



1 



2 



1 

 2 

























1 

























5 



8 



30 



41 



