1892.] 



MICROSCOPICAL JOURNAL. 



257 



Radiolaria : Their Life-History and Their Chissiflcatioii. 



By Rev. FRED'K B. CARTER, 



MONTCLAIR, N. J. 



{^Continued from page 2/g.'\ 

 It may be a help to the student to know that there is a great 

 difference between the genera as regards the number of the 

 species in each. Furthermore, there is a difference in the num- 

 ber of species of any genus as regards the special locality in Bar- 

 badoes. This is very evident as one studies Ehrenberg's analysis 

 of this material. For the convenience of the student I give the 

 results in two columns, the first being the total number of species 

 of each genus found by Ehrenberg in the Barbadoes deposit ; the 

 second the number found at Springfield. 



Anthocyrtis^ . 



Astromma^ 



Calocyclas^ 



Carpoca?iiutn^ . 



Cenosp/iccra, 



Ccratospyris^ . 



C/adospyr/s, 



Cor7iuteUa^ . . . . 



Cryptoprora-Setha77ipora (//), 



Cycladophora^ . . . . 



Dictyocep/iahiSj 



Dictyophimus^ 



Dictyopodium^ 



Dictyospyris^ 



Eucyrtidiiim, 



JFlustrella , 



Halicalyptra^ 



HaUo7nttia^ 



HistiaSt7-2l 771 , 



Hy77ie7iiastru77t^ 



LitJiobotrys^ 



Lithoca7npe, 



I^ithochytris^ 



L ith ocor yth iu 77i , 



Lithocyclia. 



Litho77ielissa^ 



Lithopera^ 



Lithor7iithi7i77i^ 



Lophop/icv7ia, 



Lych7ioca7iiu77i, 



Perichla77iydhi77i , 



Periphce7ia^ 



Petalospyris^ 



Podocyrtis^ 



