22 Fishenj Board for Scotland. 



The differences were well marked : they may be racial. Both 

 varieties seem to exist in the North Sea. It is possible that two 

 species are inchided under the name Sehastes marimis, but, if that be 

 so, it is probably the case that both grow comparatively large. 



Ltitken* regarded Sehastes marimis and Sehastes vivipariis as distinct 

 species. Smitt considered that the latter was merely a variety of the 

 former. Vanhoffent was of the opinion that a specimen of Sehastes 

 marinus got at Greenland showed no important difference from 

 examples of Sehastes vivipariis captured in the North Sea. Cuvier and 

 Valenciennes considered that forms of Sebastes from Norway and 

 Newfoundland did not differ. 



7'Ae Fishes Examined. 



In order to study the development of the reproductive organs, 

 specimens were examined during each month of the year. 



In the following table an analysis of the fishes with respect to 

 sex, length, and the stage of development of the ovary is given for 

 each month. The length of the fish is the distance from the tip of the 

 mandible (when the mouth is closed) to the end of the longest raj^ of 

 the tail fin. 



The investigation covered the period Januar3^ 1908, to November, 

 1910. Fishes examined in different years are included in the total for 

 the month. 



In most cases the locality of capture is not known. In some cases 

 it is, no doubt, the North Sea. 



** Smitt — " Scandmavian Fishes." Stockhohii, 189o. 



+ "Grondland Expedition der Gesellschaft fiir Erdkunde zu Berlin, 1891- 

 1893." 3 Bd., 1 teil. Die Fische. Berlin, 1897. 



Table 



