I. Tintinnodea. 



f-v-.j 



In the list of species given beneath I follow Brandt's large 

 work of 1907 where we find nearly all our knowledge concerning 

 the systematical matters of this group of Infusorians put down. 



Tiiitiiiiiopsis Stein, 1867. 

 1. Tintinnopsis karajacensis Brandt, 1896, p. 57, pi. 3, fig. 5; 

 1906—07, p. 162, pi. 19, figs. 5, 7, 10—12, pi. 26, fig. 3, (varr.) pi. 19, 

 figs. 1—2, 9, 19, 20, pi. 26, fig. 9; H. Laackmann, Wiss. Meeresunters., 

 Bd. 10, Abt. Kiel, 1906, p. 21, pi. 1, figs. 12—14. 



Nov. var. lagenoides (Fig. 1). 



Differs from the main species in the inflated lower end of the 

 house and in the scarceness of foreign bodies upon its wall. 



In three samples (August— Septm. 1907) from Danmarks Havn I 

 found rather sparsely a Tintinnopsis form which has caused me 

 much trouble. It stands in many respects 

 between T. karajacensis Bdt. and T. sacculus 

 Bdt., but as I had not been able to find the 

 peculiar structure of the "Primärwaben" 

 characterizing T. sacculus (see Brandt 1907, 

 p. 164), I prefer to keep my form under 

 T. karajacensis. From this it differs in the 

 inflated lower end of the house and the di- 

 stinct neck. The foreign bodies are small 

 and rather few. I have not seen more than one nucleus. 



The dimensions are as follows: 



Length 80-88/^, 



Breadth of the neck 32 /i, 



— of the lower part.. åO fi. 



It seems related to the var. b from Tocantin figured by Brandt 

 1906, and perhaps to Laackmann's T. Lohmanni (1. c, p. 20, pi. 1, 

 figs. 10-11). 



Distrib. : (main species) Karajak Fjord, Davis Strait; Iviel Fjord; Nor- 

 Nvcj^ian b>)rd.s; oIlHelder; (varr.) otfliorneo; Tocantin; off Bombay; Iceland. 



22* 



Fig. 1. Tintinnopsis kara- 

 jacensis Brandt var. lage- 

 noides n. var. 250 t. m. 



