XVIII ILLUSTRATIONS. 



Page. 



FIG. 147. Genus Lepraliella Levinsen, 1916 511 



148. Genera of the Galeopsidae Jullien, 1903 512 



149. Genus Galeopsis Jullien, 1903 513 



150. Genus Haawellia Busk, 1884 516 



151. Genus Semihaswellia Canu and Bassler, 1917 51 7 



152. Genus Gigantopora Ridley, 1S81 519 



153. Genus Gephyrophora Busk, 1884 520 



154. Genus Tessaradoma Norman, 1868 522 



1 55. Genus Cheilopora Levinsen, 1909 525 



156. Genus Hippopodina Levinsen, 1909 532 



157. Genus Metrarabdotos Canu, 1914 ; 534 



158. Genus Watersipora Neviani, 1895 538 



159. Anatomical structure of the Tubucellariidae Busk, 1884 540 



160. Genus Tubuc'ellaria D'Orbigny, 1852 542 



161. Genus Tubiporella Levinsen, 1909 548 



1 I;L>. tienus SiphoniryUu-a Busk, 1884 549 



163. Anatomical structure of the Adeonidae Jullien, 1903 552 



164. Genera of Adeonidae Jullien, 1903 554 



Mi"). Genus Meniscopora Gregory, 1893 555 



166. Genus Bracebridgia MacGillivray, 1886 558 



167. Genus Acleona Lamouroiix, 1 S 1 6 560 



MiS. Genus Adeonella (Busk, 1884) Waters 1888 561 



1(>9. Genus Adeonellopsis MacGillivray, 1886 563 



170. Genus Dimorphocella Maplestone, 1903 -. 571 



171. Larva of Phylactellidae Canu and Bassler, 1917 572 



172. Genera of the Phylactellidae Canu and Bassler, 1917 572 



173. Genus Phylactella Hincks, 1880 573 



174. Genus Perigastrella Canu and Bassler, 1917 576 



175. Genus Mastigophora Hincks, 1880. 588 



17(i. Anatomical structure of the Celleporidae Busk, 1852 594 



177. Genera of the Celleporidae Busk, 1852 597 



178. Genus Schismopora MacGillivray, 1888 599 



179. Genus Osthimosia Jullien, 1888 601 



180. Genus Costazzia Neviani, 1895 603 



181. Genus Holoporella Waters, 1909 604 



182. Holoporella pisiformis, new species 608 



183. Cellepora ramulosa Busk, 1854 , 614 



184. Cellepora sardonica Waters, 1879 615 



185. Cellepora janthina group 615 



186. Genus Aranthionella Canu and Bassler, 1917 616 



187. Genus Fedora Jullien, 1882 623 



188. Genus Stichoporina Stoliczka, 1861 625 



189. Genus Orbitulipora Stoliczka, 1861 . . 628 



190. Genus Batopora Reuss, 1867 629 



191 . Genus Diplotaxis Reuss, 1867 629 



192. Genus Conescharellina D'Orbigny, 1851 630 



193. Genus Bipora Whitelegge, 1887 631 



194. Genus Flabellipora D'Orbigny, 1852 631 



195. Genus Mamillopora Smitt, 1872 632 



196. Microscopic structure of tubes 635 



197. Structure of the cylindrical tubes... 636 



