48 



BULLETIN OF THE BUREAU OF FISHERIES 



boreal pteropod Limacina retroversa; and the ctenophores Pleurobrachia and Beroe. 

 This also applies to tow-net catches at 12 stations between Cape Cod and Yarmouth 

 (Nova Scotia) for the midwinter of 1920 and 1921, listed below. These lists vary 

 somewhat from station to station, as is always to be expected, but there is no charac- 

 teristic qualitative difference between the western and the eastern stations, the 

 Calanus community (and chiefly C. finrnarchicus) dominating the same general 

 assemblage of boreal animals as occurs in summer at the localities in question. 



1 For complete lists of the copepods at these stations see p. 304. 



