32 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Family CYCLICOPORIDAE Hincks, 1884 



Cyclicopora Hincks, 1884; Kymella Canu and Bassler, 1917. 



Family EUTHYROIDAE Levinsen, 1909 



Euthyroides Harmer, 1902. 



Family HIPPOTHOIDAE Levinsen, 1909 



Hippothoa (Lamouroux, 1821) Hincks, 1880 (Diazeuxia Jullien, 

 1886; Celleporella Gray, 184S); Trypostega Levinsen, 1909; Chorizo- 

 pora Hincks, 1880; Haplopoma Levinsen, 1909; Dacryopora Lang, 

 1914; Harmeria Norman, 1903. 



Family PETRALIIDAE Levinsen, 1909 



Petralia MacGillivray, 1887; Petraliella, Canu and Bassler, 1927; 

 Coleopora Canu and Bassler, 1927. 



Family GALEOPSIDAE Jullien, 1903 



Galeopsis Jullien, 1903; Cosciniopsis Canu and Bassler, 1927; 

 Stenopsis Canu and Bassler, 1927; Gephyropliora Busk, 1884; Haswellia 

 Busk, 1884; Pachystomaria MacGillivray, 1895; Schizaropsis Canu 

 and Bassler, 1917; Cylindroporella Hincks, 1877 (Porinula Levinsen, 

 1916); Gigantopora Ridley, 1881; Tremotoiclws Canu and Bassler, 

 1917; Semihaswellia Canu and Bassler, 1917; Tessaradoma Norman, 

 1868. 



Family STOMACHETOSELLIDAE Canu and Bassler, 1917 



Posterula Jullien, 1903; Stomadietosella Canu and Bassler, 1917; 

 Enoplostomella Canu and Bassler, 1917; Cigclisula Canu and Bassler, 

 1927; Ragionula Canu and Bassler, 1927; Diatosula Canu and Bassler, 

 1927; Leiosella Canu and Bassler, 1917; Schizemiella Canu and Bass- 

 ler, 1917; Metradolium Canu and Bassler, 1917; Metrocrypta Canu and 

 Bassler, 1917; Ochetosella Canu and Bassler, 1917; Escharoides Milne- 

 Edwards, 1836. 



Family ESCHARELLIDAE Levinsen, 1909 



Subfamily Schizoporellae Canu and Bassler, 1917; ScJiizolavella 

 Canu and Bassler, 1920; Stylopoma Levinsen, 1909; Dakaria Jullien, 

 1903; Emballotlieca (part) Levinsen, 1909; Gemellipora Smitt (part) 

 1872; Gemelliporella Canu and Bassler, 1920; Gemelliporidra, Canu 

 and Bassler, 1927; Characodoma Maplestone, 1900; Lacerna Jullien, 

 1888; Arthropoma Levinsen, 1909; Buffonellaria Canu and Bassler, 

 1927; Schizomavella Canu and Bassler, 1920 (subgenus Metroperiella 

 Canu and Bassler, 1917); Schizoporella Hincks, 1877; Stephanosella 



