NORTH ATLANTIC PLANKTON. 51 



Copepoda : — 

 Calanus finmarchicus (very few). 

 Oitlwna spinifrons (few). 

 Euchceta marina (few). 

 Centropages hamatus (few). 

 Pseudocalanus elongatus (common). 

 Temora longicornis (few). 



14. August 11th, 7 p.m., to August 12th, 9 a.m. ; from 



lat. 51° 55' N., long. 55° 46' W., to lat. 49° 37' K, long. 

 59° 50' W. ; temperature in tub, 62° F. 



(A.) The finer net at overflow pipe (45 cc.) : — 

 Coscinodiscus radiatus. 

 Geratium tripos. 

 C. ficsus. 



Peridin ium diver gens. 

 Globigerina bulloides. 

 Sagitta sp. (great quantity). 

 Euthemisto compressa. 

 Nyctiphanes norvegica (?). 

 Zoea of Crab. 

 Cypris stage oiBalanus. 

 Mysis stage of Schizopods. 

 Fish eggs. 



Copepoda, many : — 



Calanus finmarchicus (very few). 

 Temora longicornis (few). 

 Ectinosoma atlanticum (many). 

 Acartia denticornis (?) (rare). 

 Oithona spinifrons (many). 

 Pseudocalanus elongatus (many). 

 Centropages hamatus (few). 

 Corynura discaudata, n. sp. (rare), 



