192 WILLEY. 



Of the great red oily Euchaeta norvegica, the mature females of which 

 measiired up to 8 mm. in length, and the males a little more than 

 6 mm., 46 examples were observed, distributed as under:— 



Euchaeta norvegica 9 37 ' 



& 4 



"Prince" 

 Station 6, 



" " cf (jun.) 4 [ February 23, 



" " 9 (jun.) 1 J 1917. 



Some of the females were carrying an ovisac laden with eggs, others 

 had a spermatophore attached to the genital segment, and two of 

 the males each held a spermatophore by the cheliform extremity of 

 the left fifth foot. The relatively large proportion of males is notice- 

 able. During the Canadian Fisheries Expedition (1914-15) only six 

 males were observed altogether at the stations of the C. G. S. 

 " Acadia," southeast of Nova Scotia and only in one vertical haul as 

 many as two were seen; the remainder were found singly. 



A still greater proportion of Euchaeta males appeared in the stomach 

 contents of the coal -fish (Gad us or PoUachhis virens), locally known as 

 the "pollack," taken off Wilson's Beach, Campobello Island, at the 

 entrance to Passamaquoddy Bay on August 2^, 1916. In the first 

 one which I examined, the bulk of the contents consisted of the Schizo- 

 pod, Meganycti'phanes norvegica; there were also some of the smaller 

 species, Rhoda or Thysanoessa inermis, some Caprellids, fish remains, 

 several Sagittae, and 56 Euchaeta, namely: — 



Euchaeta norvegica 9 27 



cf 7 



« « V 22 



Of the females, 4 retained the egg-sac. 



Another "pollack" stomach was full of "red feed" consisting of a 

 densely packed mass of Euchaeta mixed with an approximately equal 

 quantity of Schizopod remains half digested. Euchaeta composed 

 a moiety of the total content. One intact Meganyctiphanes was 

 present. The following percentage of the Copepod content was made 

 out very clearly: — 



Calanus finmarchicus V 1 per cent. 



« « &.............................. 1 " 



" hyperboreus V 2 " 



