586 



BULLETIN OF THE BUREAU OF FISHERIES 



Table 31. — Numerical expressions of certain systematic characters for 20 specimens of Leucichthys 

 zenithicus from Lake Huron, 10 of them more than 200 millimeters long and 10 less than 200 milli- 

 meters long, selected according to size 





































Field 

 No. 



Locality 



Length 



Sex 



Rakers 



Scales 



L/H 



L/O 



L/DB 



L/AB 



L/DA 



L/AT 



L/D 



L/W 



D/W 



SD/H 



SD/O 



44 



Cheboygan, 



287 



Im.(? 



14+25 



72 



4. 1 



5. 7 



10. 0 



11.0 



2. 6 



9. 2 



3. 8 



9. 2 



2. 4 



2. 1 



2. 9 





Mich. 

































46 



do 



260 



9 



14+26 



71 



4. 1 



5.5 



8.8 



9.5 



2.7 



9.4 



4.1 



9.6 



2.3 



2.1 



2.8 



56 





269 



9 



14+25 



80 



4. 5 



6. 2 



9. 9 



10. 0 



2. 5 



8. 4 



4. 0 



7. 9 



1. 9 



2. 2 



3. 0 



855 



— "do— "I" 



282 



9 



14+25 



75 



4.3 



5.8 



9.7 



10.4 



2.6 



7.2 



3.8 



6.9 



1.8 



2.1 



2.9 



85G 



do 



275 



9 



14+24 



82 



4. 1 



5.7 



10.5 



9.8 



2.7 



8.0 



3.5 



6.4 



1.8 



2. 1 



3.0 



942 



Rogers, Mich. 



257 



9 



13+23 



74 



4.2 



5.8 



9.5 



9.3 



2.7 



8.2 



3.5 



8.5 



2.3 



2.0 



2.9 



224 



Alpena.Mich. 



236 



<? 



14+23 



77 



4. 1 



5.6 



10.0 



10.0 



2.8 



7.3 



4.9 



9.0 



1.8 



2.0 



2.7 



423 



do— 



277 



<? 



14+26 



81 



4.4 



6.2 



9.8 



9.0 



2.8 



8.9 



5.1 



9.3 



1.8 



2. 1 



3.0 



433 



do 



261 



Evis. 



14+27 



82 



4.2 



5.7 



9.5 



9.8 



2.7 



8.0 



4.4 



9.3 



2.1 



2.1 



2.9 



540 



do ... 



270 



Evis. 



13+24 



72 



4.2 



6.0 



9.3 



10.8 



2.8 



7.9 



4.3 



9.3 



2.1 



2.1 



2.9 



58 



C hey boy- 



186 



Im.9 



13+25 



77 



4. 1 



5.5 



9.9 



9.5 



3.1 



8.7 



4.8 



10.0 



2.0 



2.1 



2.8 





gan, Mich. 

































841 



do 



167 



9 



13+22 



79 



4.2 



5.7 



9.8 



9.9 



2.9 



8.3 



3.9 



.77 



1.9 



2.1 



2.9 



897 



do 



191 



9 



13+23 



82 



4.1 



5.4 



10.4 



10.9 



2.8 



7.6 



3.8 



7.7 



2.0 



2.1 



2.7 



230 



Alpena.Mich. 



191 



(? 



14+23 



79 



4.2 



5.8 



11.2 



11.2 



2.9 



8.2 



4.7 



8.7 



1.8 



2.1 



3.0 



249 



do 



167 



Im.9 



12+23 



74 



4. 1 



5.6 



11.5 



9.8 



3.0 



8.0 



4.5 



8.0 



1.7 



2.1 



2.8 



253 



do 



188 



Im.9 



14+25 



78 



4.2 



5.7 



9.0 



10.3 



2.7 



9.6 



4.2 



8.1 



1.9 



2.1 



2.9 



255 



do 



170 



Im.9 



13+24 



77 



4.1 



5.7 



9.4 



9.8 



2.8 



8.2 



4.3 



8.5 



1.9 



2.0 



2.7 



269 



do 



171 



Im.<? 



13+23 



75 



4.0 



5.7 



9.4 



9.5 



2.8 



8.2 



4.8 



9.0 



1.8 



2.0 



2.8 



270 



do- 



180 



Im.tf 



14+24 



80 



4.0 



5.7 



9.2 



10.0 



2.8 



8.2 



4.5 



8.7 



1.9 



2.0 



2.9 



273 



do 



190 



Im.<? 



14+26 



79 



4.2 



5.8 



10.5 



9. 1 



2.8 



8.6 



4.5 



10.0 



2.2 



2.1 



2.9 



Size 



Over 200 

 milli- 

 meters. 



Under 200 

 m i 1 1 i*- 

 meters. 



Size 



Field 

 No. 



SA/H 



SA/O 



H/E 



H/M 



H/S 



H/J 



H/Ad 



H/R 



O/E 



O/M 



O/S 



PV/P 



Avyv 



DR 



AR 



VR 



PR 



DC 



AC 



Br 



O v[er 200 



44 



3.2 



4.4 



4.6 



2.5 



3.3 



2.1 



4.0 



6.8 



3.3 



1.8 



2.4 



2.0 



1.5 



9 



10 



10 



16 



1.4 



0.93 



9 



millime- 



46 



3.3 



4.4 



4.4 



2.6 



3.4 



2.0 



4.0 



6.8 



3.3 



1.9 



2.5 



2. 1 



1.5 



11 



11 



11 



16 



1.3 



.96 



9 



ters. 



56 



3.4 



4.8 



4.4 



2.5 



3.5 



2.1 



3.5 



7.0 



3.1 



1.8 



2.5 



1.9 



1.5 



10 



10 



12 



17 



1.5 



1.0 



9 





855 



3.3 



4.4 



4.4 



2.3 



3.4 



2.0 



3.8 



6.0 



3.2 



1.7 



2.5 



2.1 



1.6 



10 



11 



12 



17 



1.3 



.92 



10 





856 



3.2 



4.4 



4.7 



2.4 



3.3 



2.0 



3.4 



6.4 



3.3 



1.7 



2.3 



2.0 



1.6 



10 



11 



11 



16 



1.5 



.93 



9 





942 



3.3 



4.5 



4.5 



2.4 



3.3 



2.0 



3.1 



6.6 



3.2 



1.7 



2.4 



2.0 



1.5 



10 



11 



11 



17 



1.4 



.86 



8 





224 



3. 1 



4.2 



4.4 



2.5 



3.5 



2.0 



3.8 



6.5 



3.2 



1.8 



2.6 



1.8 



1.5 



10 



11 



11 



17 



1.5 



1.0 



9 





423 



3.4 



4.8 



4.4 



2.5 



3.3 



2.0 



3.8 



5.5 



3.2 



1.8 



2.4 



1.9 



1.5 



10 



12 



11 



16 



1.5 



.93 



8 





433 



3.2 



4.4 



4.2 



2.5 



3.4 



2.1 



3.5 



7.6 



3.1 



1.8 



2.5 



2. 1 



1.6 



10 



12 



11 



17 



1.3 



.93 



9 





540 



3.4 



4.7 



4.2 



2.5 



3.7 



2.1 



3.7 



5.6 



3.0 



1.8 



2.6 



2.0 



1.6 



10 



11 



11 



16 



1.4 



1.0 



9 



U n d e r 200 



58 



3.2 



4.3 



3.7 



2.6 



3.6 



2.0 



3.7 



6.9 



2.8 



1.9 



2.9 



2. 1 



1.4 



9 



11 



11 



17 



1.5 



1.0 



9 



millime- 



841 



3.2 



4.4 



4. 1 



2.8 



3.5 



2.0 



3.4 



7.5 



3.0 



2.0 



2.6 



2.4 



1.4 



10 



11 



11 



16 



1.5 



.98 



9 



ters. 



897 



3.1 



4. 1 



4.0 



2.6 



3.5 



2.0 



3.8 



11.7 



3.0 



2.0 



2.7 



2.2 



1.4 



10 



11 



11 



16 



1.5 



.97 



8 





230 



3.2 



4.4 



4.0 



2.6 



3.5 



2.1 



3.3 



6.4 



2.9 



1.8 



2.6 



2. 1 



1.5 



10 



10 



10 



16 



1.6 



1.0 



9 





249 



3.3 



4.4 



3.7 



2.6 



4.0 



2.1 



3.8 



6.4 



2.7 



1.9 



2.9 



2.3 



1.5 



9 



11 



11 



17 



1.6 



1.0 



9 





253 



3.2 



4.4 



4.2 



2.5 



3.5 



2.2 



4. 1 



6.8 



3.0 



1.8 



2.6 



2.0 



1.6 



11 



11 



11 



16 



1.3 



.98 



9 





255 



3.1 



4.3 



4. 1 



2. 5 



3.6 



2.1 



4.0 



6.0 



3.9 



1.9 



2.6 



1.8 



1.5 



10 



12 



11 



17 



1.4 



.92 



9 





269 



3.1 



4.3 



4.1 



2.5 



3.7 



2.0 



3.8 



6.4 



3.0 



1.9 



2.6 



1.9 



1.4 



10 



11 



11 



16 



1.4 



.94 



10 





270 



3. 1 



4.4 



4.1 



2.6 



3.7 



2.1 



4.0 



6.5 



2.9 



1.8 



2.6 



1.9 



1.5 



10 



12 



11 



17 



1.4 



1.0 



9 





273 



3.3 



4.5 



4.2 



2.5 



3.6 



2.1 



3.8 



6.5 



3.0 



1.8 



2.6 



2.0 



1.6 



9 



11 



11 



16 



1.6 



.96 



9 



