VIII 
CONTENTS. 
Systematic descriptions — Continued. 
Order Cheilostomata Busk — Continued. 
Suborder Anasea Levinsen — Continued. 
Division II. Coilostega Levinsen, 1909 — Continued. page. 
Family Steganoporellidae Levinsen, 1909 259 
Genus Steganoporella Smitt, 1873 259 
Siphonoporella Hincks, 1880 265 
Family Tlialamoporellidae Levinsen, 1909 . 268 
Genus Thalamoporella Hincks, 1887 268 
Division III. Pseud ostega Levinsen, 1909 269 
Family Cellariidae Hincks, 1880 269 
Genus Cellaria Authors 272 
Oianotremella Canu, 1911 274 
Family Coscinopleuridae Canu, 1913 275 
Genus Coseinopleura Marsson, 1887 275 
Macropora MacGillivray, 1895 276 
Quadricellaria D’Orbigny, 1850 279 
Suborder Ascophora Levinsen, 1909 280 
The Costulae (family Oribrilinidae, Hincks, 1880) 280 
Genus Membraniporella Smitt, 1873 : 281 
Cribrilina Gray, 1848 290 
Puellina Jullien, 1886 293 
Distansescharella D’Orbigny, 1852 299 
Gepliyrotes N orman, 1903 300 
Metracolposa Canu and Bassler, 1917 304 
Corbulipora MacGillivray, 1895 308 
Aeanthocella Canu and Bassler, 1917 309 
Cribrendoeeium Canu and Bassler, 1917 310 
Arachnopusia Jullien, 1886 311 
Figularia Jullien, 1886 313 
Aspidelectra Levinsen, 1909 317 
Family Acroporidae Canu, 1913 317 
Genus Acropora Reuss, 1869 318 
Gastropella Canu and Bassler, 1917 320 
Pachytheca Canu, 1913 321 
Beisselina Canu, 1913 322 
Family Hippothoidae Levinsen, 1909 325 
Genus Ilippothoa (Lamouroux, 1821) Hincks, 1880 326 
Trypostega Levinsen, 1909 327 
Haplopoma Levinsen, 1909 332 
Chorizopora Hincks, 1880 333 
Dacryopora Lang, 1914 333 
Harmeria Norman, 1903 334 
Family Escharellidae Levinsen, 1909 334 
Group I. Schizoporellae Canu and Bassler, 1917 335 
Genus Scliizopodrella Canu and Bassler, 1917 338 
Stephanosella Canu and Bassler, 1917 343 
Lacerna Jullien, 1888 345 
Buffonella, Jullien, 1888 348 
Arthropoma Levinsen, 1909 351 
Phonicosia Jullien, 1888 352 
Schizobrachiella, new genus 353 
Sehizomavella Canu and Bassler, 1917 353 
i 
