64 



P. T. CLEVE, THE PLANKTON OF THE NORTH SEA, ENGI.1KH CHANNEL, ETC. 



Table V (cont 



Month 



Day 



13 



18 



24 



10 



17 



23 



1(3 



24 



13 



21 



23 



( !. danicne Cl. 



C. debilis Cl 



C. decipicna C] 



C. deusus Cl 



C. diadema Ehb 



C. didymna Ehb 



C. biémalis Cl . . 



C. Schiittii Cl 



C. scolopendra Cl 



C. socialia I.aid. ....... 



Coscinodiscua concinnus W. Sm. . 



C. oculus iridis EllB 



C. polychordns Gran 



Ditylnm Brightwellii West. . . 

 Guinardin flaeeida II. Per. . . . 

 Rhizosolenia calcar avis Schulze 



R. gracillima Cl 



Tt. setnispina Hensen 



R. Bctigera Ktw 



R. Shrulisolci Cl 



R. styliformis Btw 



Skeletouema loslatum Grev. . . 

 Stephanopyiis turgida Gr?:v. . . 



1'halasmosira gravida Cl 



T. Nordensköldii Cl 



Thalassiotbrix Krauenfeldii Grun. 

 T. longiaaima Cl. & Grun. . . 



Planktontype 



Tp. 

 Na. 



Ne. 



cc 



+ 



rr 



+ 

 rr 



Tp. 



Ns. 

 Ne. 



Tp. 



Na. 

 Ne. 



Tp. 



Na. 

 (Ne.) 



r 



cec 



c 



r 



c 



c 



rr 



Ne. 

 Na. 

 Si. 



r 

 c 

 cec 

 c 

 r 



r 

 c 

 r 

 rr 



Ne. 

 Si. 



+ 

 c 

 cc 



+ 

 cc 



Si. 



Ne. 



r 



cc 

 r 



Si. 

 Ne. 



+ 

 cc 



+ 

 cc 



C. 



Ns. 



C. 



Ns. 



C. 



Ns. 



r 

 cc 



S. 



Nin. 

 Ns. 



