NORTH ATLANTIC PLANKTON. 47 



Segmenting invertebrate eggs. 



Fish eggs. 



Nanplei. 



Evadne nordmanni. 

 Copepoda (many) : — 



OitJwna spinifrons (common). 

 Calanus finmarchicus (few). 

 Acartia clausii (common). 

 Centropages typicus (few). 

 Anomalocera pater sonii (rare). 



8. August 8th, 7 p.m., to August 9th, 9 a.m. ; from lat. 

 56° 22' K, long. 28° 8' W., to lat. 56° 28' K, long. 

 34° 25' W. ; quantity 5 cc. 



Globigerina bulloides. 

 A canthometra pellucida. 

 Sphcerozoum punctatum. 

 Ceratium tripos: 

 C. fusus. 



Peridinium diver gens. 

 Limacina retroversa. 

 Nauplei, and the following Copepoda : — 

 Nogagus borealis (rare). 

 Calanus finmarchicus (common) . 

 Pleuromma abdominale (few). 

 Oithona spinifrons (few). 

 Acartia clausii (common). 



9. August 9th, 10 a.m. to 6 p.m. ; from lat. 56° 28' K, 

 long. 34° 25' W., to lat. 56° 8' N., long. 38° 6' W. ; 5 cc. 

 Much yellow debris {Trichodesmium, &c, remains and 

 fragments), which stained the nets yellow-brown, and 

 clogged up the meshes of the finer ones. 



Peridinium diver gens (very abundant). 

 P. globosus. 



