ABT. 22. CYCLOSTOMATOUS BRYOZOA — CANU AND BASSLER. 3 



Family PLAGIOECIIDAE Canii, 1918. 



"^Plagioecia Canu, 1918; '^Notoplagioecia^ new genus; Desme'plagioe- 

 cia Canu and Bassler, 1920; '^Terebellaria Lamouroux, 1821, 

 *Cavaria Hagenow, 1851; "^Oea D'Orbigny, 1852; *Laterocea 

 D'Orbigny, 1852; * Stathme'pora^ new genus. 



Family DIAPEROECIIDAE Canu, 1918. 



*Diaperoccia Canu, 1918; *DiplosoUn Canu, 1918; ^Stigmatoeclws 

 Marsson, 1887; Desmediaperoecia Canu and Bassler, 1920; 

 Lekythionia Canu and Bassler, 1920; Grisulipora Roberston, 

 1910. 



Family TUBULIPORIDAE Johnston, 1838. 



Tubulipora Lamarck, 1816; '^Platonea Canu and Bassler, 1920; 

 Centroiiea Canu and Bassler, 1920; Mesonea Canu and Bassler, 

 1920; Erkosonea Canu and Bassler, 1920; *Pleuronea Canu and 

 Bassler, 1920; Tretonea Canu and Bassler, 1920; Idmonea 

 Lamouroux, 1821 ; Idmidromea Canu and Bassler, 1920 ; *Tenny- 

 sonia Busk, 1867. 



Family TERVIIDAE Canu and Bassler, 1920. 



Tervia Jullien, 1882; Lagonoecia Canu and Bassler, 1920; Prosthe- 

 noecia Canu, 1918. 



Family HORNERIDAE Gregory, 1899. 



Hornera Lamouroux, 1821; GrassolioTneTa Waters, 1887; Phormo- 

 pora Marsson, 1887. 



Family FRONDIPORIDAE Busk, 1875. 



Frondipora Imperato, 1599; Fasciculipora D'Orbigny, 1846; Disco- 

 fascigera D'Orbigny, 1852; Apsendesia Lamouroux, 1821. 



Family CYTISIDAE D'Orbigny, 1854. 



*Oyrtopora Hagenow, 1861 ; *Plefhopora Hagenow, 1851 ; Pletho- 

 poreUa^ new genus ; Retenoa Gregory, 1909 ; Cartecytis, new 

 genus; *OsGulipora D'Orbigny, 1849; "^Diplodesmopora^ new 

 genus; *Homoeosolen Lonsdale, 1850; *Truncatula Hagenow, 

 1851; *DisGocytis D'Orbigny, 1854; *Supercytis D'Orbigny, 

 1854; Wnicytis D'Orbigny, 1854; ""Seviicytis D'Orbigny, 1854; 

 ^Desmepora Lonsdale, 1850. 



Genera marked * are considered In this paper. 



