RADIOLAHIA — TKTHAI'YLK, TMKOf'.ALYI'THA 19o 



TETRAPYLE QUADRILOBA Km;. 



(Scfii;ni,tni(i <inwlr. Kiih. Abh. d. Borl. Akad. 1872 V\. X fig. 12—14.) 



1898 Januavij: 7 N. b\V W.; 15^ N. 70' \V. 

 February: 21° N. 74' AV. 



March : 10° N. 53=^ W. 

 November: 19^ N. 58° W. 

 December: 25° N. 54° W. 



1899 Jtan-: 12° S. 9° W. 



Temperature: 25..;, mean of 7 obs., max. 27..-,, min. 22. 

 Salinity: ;>().:!.;, mean of 8 obs., max. 'Mai, min. 35. i-. 

 Plankton-type, b'ound in tbe Atlantic, Mediterranean, Indian 

 and Pacific. — J). 



THEOCALYPTRA CORNUTA (I^ail.) 



{Carpocaniiuii i-(iUjj,trii Kim. Alili. d. Berl. Akad. 1872 pajr. 287 PI. II fig. 9. 



1898 March: 63° N. 2° K.; 71^ N. V W. 



Juhj: 78° N. 3° W. (deep sea haul). 



August: 80° N. 10° E. (deep sea haul). 



September: 76° N. 15° R. (deep sea haul). 



November: area between 56° N. 26' W.: 52^ N. 38' W. and 

 55° N. 44° W. 



December: 41° N. 66' W. 

 J 889 March: 65° N. 13° W. 



October: 53° N. 31° W. 



November: 51° N. 21 and 34 \V. 



Temperature: 7.?. mean of 9 obs., max. 22, min. 2.s. 



Salinity: iJOoL-, mean of 9 obs.. max. 35..!.!, min. 34,72. 



Plankton-type. Found in bottom-mud from Kamtchatka and 

 Cireenland. Tlie non occurrence of this species in the southern 

 Atlantic and its occurrence at Kamtchatka, as well as the low tem- 

 perature, point to the conclusion that this species arrived ultimately 

 from the noiilicni l';ici(ic (hroii;jh the i'olai' ba.'^in. 



13 



