1408 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Family Plectospongid^: Rauff. 



Acanthodictya Hinde, Cyathophycus Walcott, Palseosaccus Hinde, Plectoderma 

 Hinde, Teganium Rauff. 



Family Hyalonematid/E Schulze. 

 Pyritonema McCoy. 



Pattersonia Miller. 

 Brachiospongia Marsh. 



Family Pattersoniid^e Rauff. 

 Family Brachiospongiid^e Marsh. 



POSITION UNCERTAIN. 



Astraeospongia Roemer, Astroconia Sollas, Aulocopina Billings* Camarocladia Ulrich, 

 Cylindroccelia Uhich, Fungispongia Ringueberg, Graptospongia Ruedemann, 

 Hyalostelia Zittel, Rauffella Uhich, Rhabdaria Billings, Rhombodictyon Whit- 

 field, Stelliella Hinde, Trichospongia Billings. 



SPONGES? (CALCAREOUS ALG^ ?). 



Anomaloides Uhich, Cerionites Meek and Worthen, Cyclocrinites Eichwald, Ischa- 

 cUtes Murchison, Lepidolites Uhich, Leptopoterion Uhich, Nidulites Salter, 

 Pasceolus Bilhngs, Receptaculites Roemer. 



Phyllum CGELENTERATA. 

 Subphyllum Cnidaria. 



Class ANTHOZOA. 

 Subclass Tetracoralla. 



Family Cyathaxonid^e Edwards and Haime. 

 Duncanella Nicholson, Petraia Munster. 



Family Pal^ocyclid^: Dybowski. 

 Baryphyllum Edwards and Haime, Palseoeyclus Edwards and Haime. 



Family Zaphrentid/E Edwards and Haime. 



Amplexus Sowerby, Anisophyllum Edwards and Haime, Aphyllostylus Whiteaves, 

 Ditoecholasma Simpson, Enterolasma Simpson, Helenterophyllum Grabau, Hclio- 

 phrentis Grabau, Laccophyllum Simpson, Lindstromia Nicholson and Thonq:>son, 

 Polyorophe Lindstrom, Pycnostylus Whiteaves, Streptelasma Hall, Zaphrentis 

 Rafinesque. 



Family Cyathophyllid^; Edwards and Haime. 



Acervularia Schweigger, Blothrophyllum Billings, Boreaster Lambe, Chonophyllum 

 Edwards and Haime, Clisiophyllum Dana, Columnaria Goldfuss, Cyathophyllum 

 Goldfuss, Cylindrohelium Grabau, Cystiphoroli t es Miller, Diphyphyllum Lonsdale, 

 Eridophyllum Edwards and Haime, Hallia Edwards and Haime, Heliophylluni 

 nail, Lyopora Nicholson and Etheridge, Lichenaria Winchell and Schuchert, 

 Nyctopora Nicholson, Omphyina Rafinesque, Ptychophyllum Edwards and Haime, 

 Prismatophyllum Simpson, Strombodes Schweigger. 



Family Cystiphyllid^e Edwards and Haime. 



Calceola Lamarck, Cystiphyllum Lonsdale, Cystostylus Whitfield, Goniophylhim 

 Edwards and Haime. 



