NORTH ATLANTIC PLANKTON. 57 



III. September 27th, 9 a.m. to 5-30 p.m. ; from lat. 

 49° 12' N., long. 64° 50' W., to lat. 48° 50'. N., long. 61° 

 20'. W., (Gulf of St. Lawrence, opposite Anticosti). 

 Diatoms (a good deal of brown stuff, chiefly diatoms), 

 also Coccospheres (few) ; temp. 50° F. 



Ceratium tripos (common). 



C.fusus (many), and G.furca (few). 



Peridinium divergens, and P. globosus. 



Tintinnus denticulatus , and T. ftstularis. 



T. campanula, and T. serratus. 



Dictyocha speculum. 



Coscinodiscus radiatus. 



Chaetoceros atlanticus (very many). 



Ha losp hcera v iridis . 



Haliomma sp., and Acanthometra. 



Dinophysis atlantica. 



Botalia beccarii. 



Glohigerina bulloides. 



Sagitta sp., and Lamellibranch fry. 



Copepoda : — Caianus finmarchicus (common). 

 Acartia laxa (several). 

 Oitliona spinifrons (common). 



C, on bath tap, September 27th, 1 to 3 p.m. 

 Very little material ; some Diatoms, and : — 



Acanthometra pellucida. 



Peridinium divergens, and P. sp. 



Ceratium fusus, and C. tripos. 

 Nauplei and small Copepoda (Oitliona). 



Lamellibranch fry. 



IV. September 27th, 6 p.m., to September 28th, 

 9 a.m; from lat. 48 50' N., long. 61 20' W., to lat. 51 

 N. } long. 57 40' W. 



Ceratium tripos (common), and C. fusus. 



