74 



P. T. CLEVE, THE PLANKTON OF THE NORTH SEA, ENGLISH CHANNEL, ETC. 



Table 



M( nth 



Day 



T< mperature 



Salinity 



Oikopleura diok-a Fol 



Proto pedata Leach 



Acartia Clausii Giesbr 



A. longiremis Lilljeb 



Anomalocera Patersonii Templt. . . . 



Calanus tinmarchicus Guxn 



Centropatres hamatus LlLLJEB 



C. typicus Kröyer 



Coryneus anglicus LuBB 



Oithona similis Claus 



Paraealanus parvus Claus 



Pseudocalanus elongatus BoECK . . . 

 Temora longieornis O. F. Mull. . . . 



Evadne Nordmanna Loven 



E. spinifera P. E. MiJLL 



P. Leuckartii G. O. Särs 



Sagitta bipnnctata Quoi & Gaim. . . 



Pleurobraehia pileus Fabr 



Cyttarocylis deuticulata Eiib 



Plcctophora arachnoides C'LAP. & Lachm. 



Halosph.xia viridis SCHMITZ 



Ceratium (trip. v.) bncephalnm Cl. . . 



C. furca Du.) 



C. fnsns Duj 



C. longipes BAIL 



C. macroceros Ehb 



C. tripos Nitzsch 



Peridinium depressnm Bail 



P. divergene Ehb 



Biddnlphia auritu LTNGB 



Chsetoceros borealia Btw 



Brightwellii Cl 



itrictue Gran 



C contortaa SchI it 



1 . cnn isetus i i 



lilis ''i 



C] 



Cl 



13 



24 



13 



21 



•js 



16 



27 



13 



21 



18 



3,5 



3,4 



2,5 



1,8 



2,8 



2,0 



4.4 



4,8 8.2 



9,5 



31,01 



28.72 



30,25 



32,49 



28,53 



28,78 



24,20 



33.11 



30.76 



32,97 



32.49 



31,67 21,71 



20,36 



r 

 r 

 + 

 cc 

 r 



rr 

 rr 



rr 



+ 



IT 



rr 



c 



+ 

 r 

 -t- 

 rr 



cc 

 c 



cc 



cc 



cc 



+ 

 cc 



c 



r 

 — 



