206 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Table XVI — Continued. 





1917. 



1918. 



1919. 



1920. 



Mean 



















Length. 





































/ 1 



/% 



/ 



/% 



/ 



/% 



f 



3 



/% 



11-5 



















12-5 







"*6 



6-33 







-13 



0-53 



13-5 



2 



6 : 03 



18 



0-99 



"*4 



0-3 



7 



0-29 



14-5 



79 



2-22 



43 



2-36 



43 



3-22 



91 



3-76 



15-5 



190 



534 



123 



6-75 



77 



5-75 



266 



10-99 



16-5 



297 



8-54 



195 



10-67 



109 



815 



307 



12-68 



17-5 



382 



10-73 



193 



10-58 



133 



9-94 



211 



8-72 



18-5 



436 



1224 



174 



9-54 



126 



9-92 



185 



7-64 



19-5 



446 



12-52 



169 



9-27 



144 



10-76 



190 



7-85 



20-5 



334 



9-38 



169 



9-27 



145 



10-83 



165 



6-82 



21-5 



334 



9-38 



117 



6-42 



126 



942 



160 



6-61 



22-5 



299 



8-40 



156 



8-56 



111 



8-30 



166 



6-85 



23-5 



224 



6-29 



130 



7-13 



83 



6-20 



101 



417 



24-5 



184 



5-17 



79 



4-33 



61 



4-56 



107 



4-42 



25-5 



100 



2-81 



60 



3-29 



45 



3-36 



93 



3-84 



26-5 



78 



2-19 



28 



1-54 



32 



2-39 



53 



219 



27-5 



45 



1-26 



38 



2-08 



23 



1-72 



60 



2-48 



28-5 



27 



0-76 



34 



1-87 



22 



1-64 



59 



2-44 



29-5 



21 



0-59 



21 



1-15 



15 



112 



49 



202 



30-5 



17 



0-48 



27 



1-48 



11 



0-82 



36 



1-49 



31-5 



14 



0-39 



11 



0-60 



3 



0-22 



23 



0-95 



32-5 



15 



0-42 



4 



0-22 



11 



0-82 



21 



0-87 



33-5 



7 



0-20 



5 



0-27 



1 



007 



19 



0-78 



34-5 



6 



0-17 



2 



011 



2 



015 



16 



0-66 



35-5 



6 



0-17 



3 



0-16 



2 



015 



6 



0-25 



36-5 



4 



0-11 



2 



0-11 



2 



015 



4 



017 



37-5 



3 



0-08 



5 



0-27 



3 



0-22 



4 



017 



38-5 



1 



0-02 



1 



0-05 







1 



0-04 



39-5 



2 



0-03 



3 



0-16 



1 



007 



3 



013 



40-5 



2 



0-03 



3 



0-16 



1 



0-07 



2 



0-08 



41-5 



1 



0-02 



1 



0-05 











425 



1 



0-02 







"l 



007 



"l 



004 



435 















1 



004 



44-5 







1 



6-05 



"l 



007 







45-5 







1 



0-05 







"l 



004 



46-5 



... 



... 











... 





475 





... 











... 





48-5 





t 













... 



49-5 



2 



0-03 













... 



50-5 



1 



002 















515 







" 1 



6 : 05 



::: 











3,560 



100-04 



1,823 



99-92 



1,338 



99-96 



2,421 



10001 



