KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 



35. 



n:o 



17 



Additional notes to tlie report on tlie plankton of the 



North Sea in 1899. 



Siiice my paper »The plankton of the North Sea, the English Channel nnd the 

 Skagerak in 1899» ^ was pnblished I received a series of 5 samples, collected in December 

 1899 on the route Göteborg — Hamburg. The results of the microscopical analysis have 

 been registered in the following list: 



December 13th and 14th 1899. 



Latitude N- 

 Longitiide E. 

 Temperatnre , 

 Salinitx- 



10° 



4 



31, 



48' 57' -7' 57" 4' 

 36' j 9° 25' i 8° 25' 

 O I 7,25 I 5,0 

 no ; 34,79 34.3.3 



55° 4' 



7° 34' 



4,5 



.32,(i2 



55' 7' 



7=51' 



5,0 



32,0-1 



Latitude N 57° 48' 57° :i7' 57 4' 



Longitude E jlO°.g6'; 9° 2.5' I 8" 2,5' 



Temperatnre I 4.0 7,25 ! 5,0 



Salinitv .i 31,00 34,79 ' 34,33 



,55° 4' 



55° 7' 



7° 34' 



7° 51' 



4,5 



5.0 



32,i;2 



33,ot 



Calanus finmarchicus 

 Corycffius anglicns . 

 Metridia Incens . . 

 Oithona similis . . 

 Pseadocalanus elong.atus 

 Sagitta bipnnctata . 

 Amphorella Steenstrupii 

 Codonella ventricosa . 

 Cyttarocylis deuticTilata 

 Tintinnopsis l)croidea. 

 T. canipanala .... 

 Tintinnus a<'uminatns 

 Halosphsera viridis . . 

 Ceratinm bucephiilnm. 



C. furca 



C. fiisns 



C. lineatnm 



C. longipes 



C. macroeeros .... 



C. tripos 



Dinophysia aeuta . . 

 Diplopsalis lentieula . 

 Gonyaulax spinifera . 

 Peridinium Michaelis . 



P. ovatum 



P. pallidum 



Pyrophacas horologium 

 Pterospliaera Moebii 

 PhEeocystis Poucheti 

 Asterionella japonica 

 Biddulphia aurita . 

 B. mobilensis ... 

 Cerataalina Bergonii 



r 



+ 

 r 

 r 

 r 



+ 



+ 

 rr 



rr \ 



^ K. Svenska Vet. Akad. Haudl. Volume 



K. S». Vet. Akail. lliuidl. Biind 35. N;o 7. 



r Cliffitoceros brevis .... 

 r C. contortus 



C. carvisetus 



C. danicns 



C. debilis 



C. decipiens 



C. didymiis 



C. laciniosns 



C. similis 



C. teres 



Coscinodiscns confinnus . 



C. excentrions 



C. polychordns 



C. radiatus 



C. stellaris 



Ditylum Brightwcllii . . 



Eacampia zodiacus . . . 



Gainardia flaccida .... 

 + Lauderia annulata . . . 

 c Leptocylindrus danicus . 

 r Rliizosolenia calear avis . 



R. gracillinia 



R. setigera 



R. Shrubsolei 



R. Stolterfntbii 



R. styliformis 



Skeletoncma costatum . . 



Stephanopyxis turris . . 



Tlialassiosira gelatinosa . 



T. gravida 



Thalassiotlirix Frauonfeldii 



Plankton-type ....-, 

 XXXIV. i\:0 2. 1900. 





r 



c 



r 



ne 



+ 



rr 



n 



+ 





r 





+ 

 r 



+ 



Nm 



rr 

 rr 

 rr 



Tp 



Tv 



Km 



(Tp) 

 {Nrii.) 



Tp 



Nm 



