4 PROCEEDINGS OF THE NATIONAL. MUSEUM. vol. 61. 



Family THEONOIDAE Busk. 



Theonoa Lamouroux, 1821; Actinopora D'Orbigny, 1853; Multi- 

 tuhigera D'Orbigny, 1853; Radiofascigera D'Orbigny, 1853; 

 Multlfascigera D'Orbigny, 1853; Lopholepis Hagenow, 1821; 

 Serietuhigera D'Orbigny, 1853. 



Subdivision Rectangulata Waters, 1887. 



Family LICHENOPORIDAE Smitt, 1866. 



"^Lichenopora Def ranee, 1823; Orosopora Canu and Bassler, 1920; 

 Trochiliopora Gregory, 1909; Gonocava Calvet, 1911. 



LOBOSOECIIDAE new family. 

 "^Lohosoecia^ new genus. 



Family ELEIDAE D'Orbigny, 1852. 

 *Meliceritites Roemer, 1840 ; *Cyclocites, new genus. 



CERIOCAVIDAE, new family. 



^Oeriocava D'Orbigny, 1852; *Ripisoecia, new genus; *Gra7nmecava, 

 new genus ; */Spirodausa D'Orbigny, 1852 ; *Haplooecia Gregory, 

 1896. 



Family LEIOSOECIIDAE Canu and Bassler, 1920. 



*Leiosoecia Canu and Bassler, 1920 ; Parleiosoecia Canu and Bassler, 

 1920; '^Ditaxia Hagenow, 1851; ^Chilopora Haime, 1854. 



Family TRETOCYCLOECIIDAE Canu, 1919. 



*Tretocycloecia Canu, 1919; Partretocycloecia Canu, 1919; *Alveo- 

 laria Busk, 1859 ; Telopora Canu and Bassler, 1920 ; *PsUosolen, 

 new genus. 



Family ASCOSOECIIDAE Canu, 1919. 



*Ascosoecia Canu, 1919; *Polyascosoecia Canu and Bassler, 1920'. 

 *Parascosoecia Canu, 1919; *Sulcocava D'Orbigny, 1854; *Be- 

 teporidea D'Orbigny, 1852; *GrammasGOSoecia^ new genus; 

 '^Grislna D'Orbigny, 1850; *Oavarinella Marsson, 1887; *Gram- 

 manotosoecia, new genus; *Filicrisina D'Orbigny, 1852; Coelo- 

 cochlea Hagenow, 1851; Laterocavea D'Orbigny, 1852; Sipho- 

 dictyum Lonsdale, 1849. 



