198 HADIOLARIA XIPHACAN'TUA, Z Vd AC.ANTHA 



XIPHACANTHA CILIATA Hkl. 

 (Chall. pag. 761 I'l. CXXIV fig. 4, 5.) 

 1898 Mairli: 1° S. 10 ^V. ^ 



Temperature: ^(i.s. 



Salinity: Ho. 3,1. 



Plankton-type. Noted from the eastern tropical Atlantic, be- 

 tween 10 S. 14° W and 11° N. IS" W My specimens were fomid 

 among Desmo-plankton. — 1). 



XIPHACANTHA PLATYPTERA Hkl. 



(Chall. pag. 761.) 



1898 Jamiary: 10' N. .52" W. 



March: 14" N. 24 W.; 23' N. iH' \V.; 41° N. 2;-5- W. 

 April: 41° N. 19" W. 



Temperature: 19.i, mean of 5 obs., max. 25, min. 1.3. 

 Salinity: 36. 10, mean of 4 obs., max. 36. m, min. 35. tm. 

 Plankton-type. Found in the Pacific. — .S. ? 



XIPHACANTHA QUADRIDENTATA (J. Mull.) 

 (Hkl. Monogr. pag. 387 PI. XVIII fig. 15 a, b.) 



1897 December: W N. 48" W. 



Temperature: 25. s. 



Plankton-type. Found in the Mediterranean, west of Africa 

 and the Azores. — N. ? IJ. ? 



ZYGACANTHA LANCEOLATA (J. Mull.) 

 {Aranihomctra I. Mull, Abh. d. Berl. Akad. 1858 pag. 48 PI. XI fig. 12.1 



1898 February: 5° S. 9' E. 



Temperature: 27,3. 

 Salinity: 33.98 (anomalous). 



Plankton-type. Noted from the Canaries and the Mediterran- 

 ean. — .S. ? 



