336 



BULLETIN OF THE BUEEAU OF FISHERIES 





Fig. 94— Occurrence of the worms Tomopteris catharina and T. septentrionalis. C locality records for large T. catharina, 

 July and August; X for young T. catharina, July and August; O. for large T. catharina, March to May; A, for T. 

 septentrionalis, March to May. The hatched curve includes the parts of the Gulf of Maine where T. catharina has been 

 taken in summer 



actually neritic Cwitness its rarity or absence under estuarine conditions), T. catha- 

 rina is clearly a creature of the coastwise waters, as it occurs within the limits of 

 the Gulf of Maine. 



