126 CILIATA — UNDELLA 



Temperature: 18. u, mean of 13 obs., max. 21.6, min. 16.4. 

 Salinity: 36..i,i, mean of 7 obs., max. 36.94, min. 36.o9. 

 Plankton-type. This species occurs in the area between the 

 Canaries, the Azores and Gibraltar as well as in the Mediterranean. 



— S. 



UNDELLA PARADOXA Cl. 



(Ofvers. Kongl. Vetensk. Akad. Forh. 1899, n. 10, pag. 974). 



1898 February: 34° N. 73° W. 



1899 January: 33° N. 15° W. 

 Tempepatupe: 18.6 to 20. 

 Salinity: 36.34. 

 Plankton-type. D. or S. 



UNDELLA (?) URCEOLATA (Ostf.) 

 {Tintinnus urc. Ostenf. Zool. Anzeiger, Vol. XXII, n. 601 1899, pag. 437). 



1898 March: 45° N. 15° W. 

 October: bT N. 27° W. 



1899 November: 51° N. 21°— 34° W., rare. 



Temperature: 11.9. 

 Salinity: 35.i9. 

 Plankton-type. S. 



