62 Part III. — Twenty -seventh Annual Report 



Summer Spawners — Developing. 



Length. 



Jan. 



Mar. 



April. 



May. 



June. 



July. 



bJD 

 J3 



«1 



cm. 

















1 / 







1 











lo 





1 



1 





1 







iy 





2 



2 





1 







OA 



20 



1 



3 



1 



' 1 



2 







O 1 



21 



1 



6 



4 







1 





22 



2 



5 



15 



2 



"3 



22 



Q 

 O 



oo 

 26 



9 



1 



47 



12 



15 



28 



1 Q 



iy 



O A 



24: 



3 



1 



55 



15 



19 



32 



1 0 



L2 



OK 



20 



1 





30 



16 



25 



19 



1 

 1 



26 







8 



9 



19 



25 



3 



27 







1 



7 



15 



15 



1 



28 









1 



1 



11 



3 



29 













7 





30 













9 



4 



31 













17 





32 













7 





33 













3 





Summer Spents. 



Length . 



Jan. 



4°% 



June. 



July. 



Aug. 



m 



Oct. 



Nov. 



cm. 



















21 



* 





* 



* 









2 



22 







8 



1 



i 







3 



23 







22 



1 





4 





5 



24 



1 





35 





10 



5 





1 



25 



1 





15 





5 



8 





2 



26 



2 





17 



' 5 



10 



18 





1 



27 



2 





1 



9 



3 



8 







28 









1 





17 







29 



i 







4 





21 







30 











2 



12 







31 



















32 













i 







* Spents of previous summer. 



There are some herrings out of the total number dealt with in the 

 research which have not been included in the preceding Tables. They 

 are as follows : — In February 27 herrings, 17 to 23 cm. in length, were 

 judged to be spring spawners. Their reproductive organs were not 

 sufficiently advanced to permit them being regarded as winter spawners, 

 and they were nevertheless so far developed that it was likely they would 

 spawn before summer. In August two spents, 27 and 28 cm. in length, 

 w T ere diagnosed as spring spents. In December 7 herrings, measuring 

 from 17 to 22 cm. in length, were taken as spring spawners. They 



