26 



Part III. — Tiventy- seventh Annual Report 



S. Spr. — The ovary and testis were in many cases small but ripening. 

 The ovary was red or pink in colour, clear, plump, and soft. The eggs are 

 yolked. When the eggs were *25 it was possible in some cases to detect 

 the small opaquish eggs with the naked eye. White vessels are visible in 

 the ovary, which is elastic in nature. The ovary soon becomes opaque in 

 formaline solution, showing that it contains an albuminous fluid. 



The testis is clear, pink, soft, and sometimes shows longitudinal wrinkles 

 on its flat side. When teazed in fresh water it gets opaque owing to the 

 coagulation of its fluid. It is filled with this fluid, which, when the testis 

 is cut, oozes out and coagulates to a fine white powdery precipitate. If 

 the portion of tissue is washed well in water a shreddy and sometimes the 

 honeycomb structure is visible. 



The abdomen is slack. 



Winter Spent. — The reproductive organ may be flabby, thin, or shrunk, 

 skin-like. When it begins to develop again it becomes plump, clear, and 

 red or pink in colour. The stroma is gauzy, loose, with the eggs scattered 

 through it, not packed close together. Eggs in the process of division are 

 present. There is a considerable lumen in the ovary j the oviducal part 

 is wide. As a rule there were no yolked eggs in these spents. A certain 

 amount of white matter (coagulated albuminous fluid) comes out when the 

 ovary is teazed in water. The testis may be flabby, pink, soft, shrunk, 

 small, or skin-like. The outside skin may be deeply wrinkled. The testis, 

 although shrivelled, shows the honeycomb or sponge structure. Some 

 albuminous matter comes out of the tissue, which is shreddy. 



The winter spents from Stornoway were very fat, much fatter than 

 those from the Clyde. 



Length. 



Range of 

 Weight.* 



Weight of 

 Reproductive 

 Organs.* 



Breadth of 

 Reproductive 

 Organs, t 



Diameter of 

 Eggs, t 



cm. 



grammes. 



grammes. 



mm. 



mm. 



12 







2 





13 











14 







1,2 



•1 



15 



17, 23 









16 



23, 28 







•1 



17 



33,37 









18 



30-48 



•2,1-1 



3,9 



•15, 1-1 



19 



34-60 



1, -2 



1-5-4 



•1--2 



20 



33-67 



•1,"2 



2-4 



15-27 



21 



42-77 



•1--7 



2-5-7 



•1, -15 



22 



52-77 



•1--3 



2-7 



•05--25 



23 



52-96 



•1--3 



2-6 



•1-3 



24 



64-104 



•2, -4 



4-11 



•1--25, -75 



25 



74-114 





3-24 



•1--4 



26 



95-128 





4-10 



•1--3 



27 



110-162 





5-12 



15--35 



28 



124-171 



•6, 5 



6-14 



•1, -15, -7 



29 



143-172 









30 



154-178 







•1 



35 



295, 379 









* Herrings from Clyde and West Coast. 



t Herrings from Clyde, West Coast, and East Coast. 



