1416 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Family Batostomellid.® Ulrich. 



Batostoinella Ulrich, Bythopora Miller and Dyer, Diplostenopora Ulrich. and Bassler, 

 Eridotrypa Ulrich, Lioclerna Ulrich, Lioclemella Foerste, Stenopora Lonsdale. 



Suborder Integrata. 



Family Amplexoporid.e Ulrich. 



Amplexopora Ulrich, Discotrypa Ulrich, Monotrypella Ulrich, Rhombotrypa Ulrich 

 and Bassler. 



Family HALLOPORID.E Bassler. 



Calloporella Ulrich, Hallopora Bassler, Halloporina Bassler. 



Family Trematoporid^e Ulrich. 



Anaphragma Ulrich and Bassler, Batostoma Ulrich, Diplotrypa Nicholson, Hemi- 

 phragma Ulrich, Monotrypa Nicholson, Stromatotrypa Ulrich, Trematopora Hall. 



Order Cryptostomata. 



Family Phylloporinid^e Ulrich. 



Chasmatopora Eichwald, Pseudohornera Roemer. 



Family Fenestellid^e King. 



Fenestella Lonsdale, Helicopora Claypole, Hemitrypa Phillips, Loculipora Hall, 

 Polypora McCoy, Ptiloporella Hall, Semicoscinium Pront, Thamniscus King. 



Family Arthrostylid/E Ulrich. 



Arthroclema Billings, Arthrostylus Ulrich, Glauconome Goldfuss, Helopora Hall, 

 Nematopora Ulrich, Sceptropora Uhich. 



Family Rhabdomesontid.^: Vine. 

 Acanthoclema Hall. 



Family Ptilodictyonid^e Ulrich. 



Arthropora Ulrich, Clathropora Hall, Escharopora Hall, Graptodictya Ulrich, Phaeno- 

 pora Hall, Ptilodictya Lonsdale. 



Family Stictoporellid^ Nickles and Bassler. 



Ptilotrypa Uhich, Stictopora Hall, Stictoporella Ulrich, Tasniodictya Ulrich. 



Family Rhinidictyonid;e Uhich. 



Dicranopora Ulrich, Eurydictya Ulrich, Goniotrypa Ulrich, Pachydictya Uhich, 

 Phylloclictya Ulrich, Rhinidictya Ulrich, Trigonodictya Uhich. 



Family Rhinoporid/E Uhich. 



Diamesopora Hall, LichenaUa Hall, Rhinopora Hall, Stictotrypa Ulrich. 



Order Cheilostomata. 



?Paleschara Hall. 



Class BRACHIOPODA. 

 Order Atremata. 



Superfamily OBOLACEA. 



Family Obolid^e King. 



Dicellomus Hall, Elkania Ford, Leptobolus Hall, Lingulella Salter (subgenus Lingu- 

 lepis Hall), Obolus Eichwald (subgenera, Broeggeria Walcott, Lingulobolus 

 Matthew, Pakeobolus Matthew, Westonia Walcott) , Paterula Barrande. 



