scHUCHERT.] TABLES OF NORTH AMERICAN SPECIES. 



Table Y. — Silurian Brachiopoda — Continued. 



37 



Species. 



Concliidium crassiplicum Hall and Clarke 



Conchidium decussatiim (Wliiteaves) 



Couchidium cxponeus Hall and Clarke 



Concliidium georgiae Hall and Clarke 



Concliidium greenii Hall and Clarke 



Concliidium knappi (Hall and Whitfield) 



Conchidium laqueatum (Conrad) 



Conchidium littoni (Hall) 



Conchidium multicostatum (Hall) 



Conchidium nysius (Hall aud Whitfield) 



Conchidium ohsoletum Hall and Clarke 



Conchidium occidentalo Hall 



Conchidium scoparium Hall and Clarke 



Conchidium tenuicostatum (Hall and Whitfield) - 



Conchidium unguiforme (Ulrich) 



Crania acadiensia Hall 



Crania anna Spencer 



Crania dentata Ringueberg 



Crania dubia Foerste 



Crania gracilis Eingueberg 



Crania setifera Hall 



Crania siluriana Hall 



Crania Kjiinigera Hall 



Crauiclla ( ?) clintonensia Foerste 



Cyclospira ( ?) sparsiplica Foerste 



Cyrtia exporrecta (Wahlenberg)... 



Cyrtia meta Hall 



Cyrtia myrtia Billings 



Cyrtina pyrauiidalis (Hall) 



Dalmanella arcuaria Hall aud Clarke 



Dalmanella elegantnla (Dalman) 



Dalmanella elegantula jiarva (Foerste) 



Dalmanella parva do Verneuil 



Delthyria (?) rugicosta (Hall) 



Delthyris sulcata Hisinger 



Dictyonella anticostionsis Billings 



Dictyonella concinna Hall 



Dictyonella coraliifera Hall 



Dictyouella gibbosa Hall 



Dictyonella reticulata Hall 



Dinobolus conradi Hall 



Glossina perovata ( Hall) 



Gypidula coppingeri (Etheridge) 



Oypidula globosa (Nettelroth) 



Gypidula knotti (Kettelroth) 



Gypidula nucloa (Hall aud Whitfield) 



Gyjiidula roemeri Hall and Clarke 



Gypidula uniplicata (Nettelroth) 



Hebertella daytonensis (Foerste) 



Hebertella fausta (Foerste) 



Hindella prinstana (Billings) 



Hindella umbonata (Billings) 



Eo- 

 sUurian. 



Medina. 



ilesosilurian. 



Anti- 



costi, 



Clinton. 



CI 



CI 



CI 

 CI 



CI 

 A 



CI 

 CI 

 A 



CI 



CI 



CI 



CI 



A 

 A 



! 



Koosi- 

 lurian. 



Guelph, 

 Arisaig, 

 Niagara. 



N 

 K 

 K 



N 

 N 

 N 

 N 



N 



Gu 



Gu 



Ar 



N 



N 



N 

 X 



N, 



N 

 N 



N 

 N 

 N 

 N 



Ar 



N 



N 

 N 



N 



MS 





Tentac- 

 ulite, 



"Water- 

 lime. 



