312 Appendices to Fifth Annual Report 



TABLE XXXVII. , of Comparative Absolute Lengths of Dorsal 

 and Anal Fins. 



Length of Dorsal Fin. 



Percentage of Herrings on which the Anal 

 Fin, in actual length in mm., as com- 

 pared with the Length of the Dorsal 

 Fin, was : — 







1 to 5 

 mm. 



Longer. 



Equal in 

 Length. 



1 to 5 

 mm. 

 Shorter. 



5 to 10 



mm. 

 Shorter. 



10 to 15 



mm. 

 Shorter. 





21 mm. to 25 mm. 



7 



1-0 



io-o 







inter 



26 mm. to 30 mm. 



17 



4-3 



27-0 



10-4 





r" 



31 mm. to 35 mm. 

 36 mm. to 40 mm. 



1-4 



1-0 



23-8 

 3-3 



9-7 

 4-7 



1-0 





21 mm. to 25 mm. 



•5 



1-6 



9-0 







o 



26 mm. to 30 mm. 



1-6 



2-8 



42-3 



1S-4 





tnnri 



31 mm. to 35 mm. 





•3 



10-1 



12-0 







36 mm. to 40 mm. 





•3 



•3 



•8 





The circumstance that so much larger a percentage of the summer 

 herrings than of the winter had their dorsal fins of a length of from 26 

 mm. to 30 mm., as shown by this table, is of no importance ; it merely 

 results from there having been a greater percentage of the larger or largest 

 size of fish among the winter herrings measured than occurred among 

 those of summer. The figures must not be taken to indicate any differ- 

 ence between the fish of the two seasons, in respect to the proportion 

 which the dorsal fin bears to the body length, and which appears in Table 

 XXVIII. 



TABLE XXXVIII. 



Date of 

 Take. 



No. of Individuals in Sample. 



Dorsal Fin 

 in Extreme 

 Anterior 

 Position. 



Dorsal Fin 

 in Median 

 Position. 



Do'-sal Fin 

 in Extreme 

 Posterior 

 Position. 



Jan. 



Three herrings from Wick 



' i * 



1 



1 | 





Six 



, , Helmsdale . 



i 



2 



3 



j ) 



Six 



, , Anstruther . 



2 



3 



1 



J 5 



Six ,, 



,, Lybster . 



1 



4 



1 



Feb. 



Four ,, 



, , Anstruther . 



2 



1 



1 



Two 



Banff . . 



1 





1 



J 5 



Six 



,, Ballantrae 



2 



2 



2 



June 



Three ,, 



,, Buckie 



1 



1 



1 



Six ., 



,, Stornoway . 



1 



3 



2 



July 



Ten 



,, Lybster . 



2 



4 



4 



Four ,, 



,, Inveraray 



1 



2 



1 



Aug. 



Five , , 



>> »» * 



2 



2 



1 





Three ,, 



,, Anstruther . 





2 



1 





Four ,. 



,, Orkney . 



1 



1 



2 





Six 



,, Aberdeen . 



2 



2 



2 



Sept. 



Five 



,, Berwick . 



2 



2 



1 



