GEOGRAPHICAL DISTEIBUTION, ETC. 281 



Cilohigerina ooze is one of the most widely dis- 

 tributed of the marine deposits, and its importance 

 as a recent foraminiferal deposit may be conceived 

 from the fact that it covers an area of the ocean 

 floors estimated at 49,000,000 square miles. The 

 pelagic species found in these oozes are — 



Globif/erina sacr/iJifciri^ Brady ; 

 6r. ceq/iilaterdli.^, Brady ; 

 Ct. coiiglobafa, Brady; 

 G. diihia, Egger ; 

 G. rubra, D'(3rbigny ; 

 G. buUoides, D'Orbigny; 

 G. in flat a, D'Orbigny; 

 G . digitata, Brady ; 



G. subcretacea, Chapman MS. {^cretacea of recent 

 deposits) ; 



G. Dutertrei, Brady ; 



OrbuUiia iniiver.sa, B'Orbigny; 



Hastiger ijia jjelagica,!)' Ovhii^ny sp. ; 



Pidlenia obUqudociiJafd^ Parker and Jones ; 



SjdicEroidina deJiisct'ii.^, Parker and Jones; 



Cajideina nitida, B'Orbigny; 



Cyinhalopora {Trcfonqd/alufi) b/iUuideti, B'Orbigny 



sp. 



Pulvinuluia Mei/ard/i, B'Orbigny sp. ; 



P. tnmida, Brady ; 



P. canarieii.si.s, B'Orbigny sp. ; 



P. Micltelitiiaua, B'Orbigny sp. ; and 



P. crassa, B'Orbigny sp. 



The influence of surface temperature on the 



