134 KAliillLAIllA — ACiWn-KlSni/V.KA 



ACANTHOSPH^RA ACUFERA Hkl. 



(Monogr. pag. 366 IM. \IV fig. 1 . 



1898 Mairh: iO X. otl W. 

 April: 11° N. 10^ W. 



Temperature: 11° to i:^.«. 



Salinity: 35. i? to 35.k». 



Plankton-type. H.i-.i.ki'.i, mentions tlii.s s[(ecies from the Medi- 

 terranean and from 33 N. 3tr W My specimen ociurred in Styli- 

 plankton. — N. 



ANCANTHOSPH^ERA CASTANEA Hkl. 



(Chall. pag. 211. PI. XXVI fig. 3.) 



1899 Jaiiiuiry: 15° X. 19 W., very rare. 



Temperature: 12. 

 Salinity: 3o.f,i. 



Plankton-type. H.i£ckel mentions this siieeies: from the X. 

 Pacific — V 



ACANTHOSPHiERA TENUISSIMA Hkl. 



(Monogr. pag. 351 PI. IX fi^. '.^. i 



1898 February: 26" X. 74° W. 

 May: Azores; 50° \. 14- W. 

 July: 25° X. 74° W.; 41° N. H(V W. 

 Norijiaber: Azores; 47° N. il° W. 



1899 March: Azores. 



Temperature: 19.s, mean of 8 obs., max. 27. >, min. 13..;. 



Salinity: 35.9o, mean of 5 obs., max. ;Ui.3o, min. 35. .iv. 



Plankton-type. Noted from the Mediterranean and the Cana- 

 ries. According to the above data it occurs raiely in the Slyli- 

 plankton of the eastern and western warmer Atlantic. — .S. 



