RADIOLARIA — LITHOri-lYLLIUM, LITHOPTERA ITo 



LITHOPHYLLIUM GLADIATUM Hkl. 



iChall. pag. 7o4 PL CXXX fig. 3.i 



1898 May. 26= N. VI' W. 



September: 33'=— 35^ N. 31°— 30° W 



Temperature: S.'i.i to 25, s. 



Salinity: 36.33 to 37. lo. 



Planliton-type. Found in the north Pacific. — ]J. 



LITHOPTERA DARWINII Hkl. 



(Chall. Rep. Narrative pag. 222 fig. 90.) 



1898 Drreiiiher: 25° N. 52° W. 



Temperature: 21.-. 

 Salinity: 37. n. 



Plankton-type. Nolcd from the region west of Patagonia. — 1) 



LITHOPTERA MULLERI Hkl. 

 (Monogr. pag. 398 PI. XX fig. 1, 2.) 



1898 Oelober: Azores. 



1899 April: 32° N. 75° W. 



Temperature: 21. i to 21.^. 



Salinity: 36.23 to 36,2a. 



Plankton type. Found in the Mediterranean. — .S. V 



LITHOPTERA TETRAPTERA Hkl. 

 (Chall. pag. 779 PI. CXXXI fig. 9.) 



1898 (>el<ilier: Azores. 



Xoi-eiiibcr: Azores; 32° N. 38" \Y. 

 Tjerenihe/-: Azores. 



Temperature: 19.7, mean of 5 obs., max. 22, min. 18.s. 

 Salinity: 36.2 1 to 36. go. 



Plankton-type. Noted from the region between Sierra Leone 

 and Ascension. — .S. ? 



