GREAT LAKES COREGONIDS 



569 



Table 11.— Frequency distribution of the ratio between the length of the ventral and the ventral-anal 

 distance (AV/V) 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 number of specimens incl uded 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, indi- 

 cates 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] 



Length, 

 in milli- 

 meters 



0.8 



0.9 



1 



1.1 



1.2 



1.3 



1.4 



1.5 



1.6 



1.7 



1.8 



1.9 



2 



2.1 



2.2 



2.3 



2.4 



2.5 



+200 









2 



12 



13 



25 



15 



5 





















+200 







1 



7 



35 



58 



42 



13 



6 





















-200 



1 







1 



3 



24 



17 



7 



2 



1 





















+210 











3 



12 



38 



70 



73 



56 



18 



4 















-210 













3 



4 



4 



2 

















+210 













8 



32 

 63 



31 



28 



32 



9 



3 















-210 









2 



7 



34 



35 



6 



2 



















+200 









1 



8 



31 



39 



32 



13 



5 



















-200 











1 



5 



6 



2 























+200 







1 







18 



106 



234 



253 



95 



16 



1 



1 















-200 







3 



12 



16 



32 



33 



16 



2 



1 



















+200 











2 



9 



30 



27 



33 



11 



3 



---- 



1 













-200 











1 



4 



1 



3 



1 





















+200 











2 



5 



8 



26 



18 



6 



1 

















-200 









1 



3 



18 



24 



12 



13 



2 



















+200 









1 



1 



12 



22 



19 



12 



1 



















-200 













2 



9 



5 























+200 











2 



11 



42 



67 



63 



40 



7 



1 















+200 











5 



20 



47 



99 



85 



30 



10 



1 















-200 











3 



12 



25 



32 



16 



4 



1 















+200 













1 



6 



16 



29 



16 



2 



2 



2 



1 











+200 









2 



24 



43 



67 



20 



10 



3 



















-200 









1 



1 



1 

























+200 









1 



19 



40 



37 



34 



7 



2 



















+200 











9 



11 



15 



10 



4 





















+200 







2 



13 



33 



40 



12 



8 



1 





















-200 







1 



23 



34 



15 



5 



1 

























+200 







1 



16 



51 



33 



23 



3 

























-200 







9 



23 



8 



3 



























+200 







1 



7 



1 



3 



























-200 





2 



38 



86 



56 



8 



2 





























1 



8 



32 



37 



31 



8 



1 



























12 



36 



65 



31 



4 



1 



























1 



24 



84 



101 



84 



31 



4 



1 





















+200 









1 



14 



38 



47 



21 



11 



1 



















-200 







4 



70 



267 



354 



234 



54 



9 











.... 













5 



75 



247 



256 



193 



64 



10 



1 



























8 



29 



40 



62 



72 



16 





















+225 











5 



4 



3 



1 



















-225 













2 



8 



22 



27 



6 



















+225 

 -225 













1 



0 



15 



43 



53 



38 



17 



8 



2 





1 



















3 



10 



22 



14 



10 



5 















+225 















1 



13 



18 



48 



31 



13 



8 





2 



1 







-225 













2 



7 



27 



50 



37 

 60 



11 



5 



1 











+225 









1 



1 



7 



0 



16 



31 



51 



11 



6 



1 











-225 













1 



2 



17 



41 



38 



21 



7 















+225 













6 



28 



35 



33 



16 



16 



8 



2 











-225 









1 





7 



32 



40 



28 



2 



3 

















+225 









1 





2 



8 



44 



51 



42 



33 



9- 



5 













-225 











1 



2 



12 



19 



8 



6 



















+200 













2 



12 



17 



7 



3 



























1 



1 



2 



13 



12 



5 































1 



3 



24 



36 



28 



15 



2 | 



























2 



4 



32 



40 



22 



16 



8. 



2 



























3 



25 



60 



54 



33 



12 



1 



























1 



2 



10 



3 



1 





























1 



3 



4 



14 



9 



7 



1 i 















+200 

 +200 

 -200 



























1 





1 

























1 





4 



19 



"u 



17 



5 



1 



2 

















■ 1 





1 



3 



1 



6 



4 



1 









+200 

 -200 

















1 













6 



7 



12 



2 



1 













1 



' 1 1 









13 



12 



3 





















.... 



2 



3 



10 



16 



21 



10 



4 





+200 

















1 1 







2 



1 



1 



















■— |—- 1— " 













Species and lake 



Johannse: 



Michigan. 

 Huron 



Alpense: 



Michigan. 



Huron 



Zenithicus: 

 Nipigon-.. 



Superior. . 



Michigan. 



Huron 



Eeighardi: 

 Nipigon. 



Superior.. 

 Michigan. 



Ontario. 

 Nigripinnis: 

 Nipigon. 



Superior.. 

 Michigan. 



Huron 



Kiyi: 



Superior. _ 

 Michigan. 



Huron 



Ontario '.. 

 Hoyi: 



Nipigon '. 

 Superior 2 . 

 Michigan. 



Huron ! _. 

 Ontario L 

 Artedi: 



Nipigon.. 



Superior. . 

 Michigan . 

 Huron 



Erie. 



Ontario. 



Nipigon: 



Nipigon 



Clupeaformis: ' 



Nipigon 



Superior 



Michigan... 



Huron 



Erie 



Ontario 



Quadrilaterale: 



Nipigon 



Superior 



Michigan. 



Huron 

 Ontario. 



To- 

 tal 



72 



162 

 56 



274 

 13 

 143 

 149 



129 

 14 

 725 

 115 

 116 

 10 

 66 

 73 



68 

 16 

 233 

 297 

 93 

 75 



1C9 

 3 

 140 

 49 

 109 



79 

 127 

 43 

 12 

 192 

 118 



149 



330 

 133 

 992 

 851 

 227 



13 



65 

 178 



64 

 135 

 140 

 194 

 127 

 144 

 112 

 194 



48 



34 

 109 

 126 

 188 

 17 

 39 



2 

 62 

 16 

 28 



1 Mostly specimens over 200 millimeters long. 



1 Mostly specimens under 200 millimeters long. 



