24 



Caroline Leeöaard. 



Peridinium sp. 



Some few Peridinium-cells were not determined, the material being too scarce. It is 

 very probable, that they belonged to the two species Peridinium balticum (Levander) 

 Lkmmermann and Peridinium achromaticum Levander. Cells that were not determined 

 occurred at all the stations. 1908 Paulsen, p. 62, 65. 



Indeterminable Pendineae. 



Some cells being very indistinct could not be determined. No doubt they belonged 

 to the genera Peridinium, Glenodinium and Gymnodinium. 



CILIATA. 



In the material examined some animal plankton-forms especially ciliata were found. 

 They were not in dominating numbers at any ol' the stations. Mesodininm rubrum occur- 

 red rather equally distributed över the whole area, and the Tintinnopsis-houses were 

 very remarkable on account of their large proportions compared with many of the diatoms 

 for instance. 



Didinium Gargantua Meunier 

 (Fig. 22.1 



1910 Meunier, p. 154, pi. 15, f. 12. 



This large form was fonnd once and only on the second examination of the samples. 

 For that reason it will not be found in the tables. It appeared at station F 50 in 



the depth of 10 mètres. The breadth of the cell 

 was 45 i/. 



The spécimen drawn was globular with two 

 rings of cilia and protmding mouth, the gullet 

 reaching very deep into the cell-body. 



«v -r 



werf 





'i.t; 22. Didinium Gargantua. 

 1150 

 J 



Laboea. sp. 

 1915 Leegaard. 



Spécimens of this genus were very scattered. 

 Some of the cells being indistinct were not deter- 

 mined. The following species were noted: 



Laboea compressa Leeg. 

 Occurrence: Station F 74. — 20 mètres. 



Tom. XLVlll. 



