40 SYNOPSIS OP AMERICAN FOSSIL BRACHIOPODA. [bull. 87. 



Tablk \. — Silurian Brachiopoda — CoutiiuKid. 



Species. 



liliynchonella ( ?) nucula (Sowerby) 



Khyncliouella (?) iiutrix Billinss 



I'vliynchonella ( ?) pisa Hall auil Whitfield 



liliynchonella (?) plicatallall 



niiynchonella ( ') plicatella (Linnanis) 



liliynchonella (?) pyrrha Billinga 



Kh\^lchonella ( ?) robusta Hall- 



KliynchoncUa (?) rugwcosta Nettelroth... 

 Rhynchonella ( ?) tennesseonsis Koemer . . 



raiynchonella (?) vicina Billings 



llliynchoapira ( ?) acadiai (Hall) 



rvhynchospira (?) helena (Nettelroth) 



Rhynchospii-a (?) sinuata Hall 



Kliynchotreta cuueata americana Hall 



Sceiiidium pyramidalo Hall 



Schizophoria senecta Hall and Clarke 



Schizotreta temiilamellata Hall 



Spirilei- asperatus Kingueberg 



Spirifer crispatus Hall and Clarke 



tjpirifer crispus (Hisinger) 



Spirifer crispus simplex Hall 



Spirifer dubius Nettelroth 



Spirifer eudorus Hall 



Spirifer foggi Nettelroth 



Eo- 

 silurian. 



Mesosilurian. 



Anti- 

 Medina, costi, 

 Clinton. 



Guelph, 



Arisaig, 

 Niagara. 



A 



CI 



Spirifer gibbosus Hall 



Spirifer niagarensi.s (Conrad) 



Spirifer niagarensis oligoptychns Koemer . . . 



Spirifer nobilis Barrando 



Spirifer radiatus Sowerby 



Spirifer ro.stellum Hall and AVhitfield 



Spirifer similior "Winchell and Marcy 



Spirifer siibsulcatus Hall 



Sjiirifer vaniixemi Hall 



Streptis grayi Davidson 



Stricklandinia anticostiensis Billings 



Stricklandinia billingsaua Dawson 



Stricklandinia brevis Billings 



St licklandinia canadensis Billings 



Sti'icklandinia castellana White 



Stricklandinia <hapmani Hall and Clarke . .. 



Stricklandinia da vid.soni Billings 



Stricklandinia dcformis Mock and Worthen. 



Stricklandinia gaspensis Billings 



Stricklandinia lens (Sowerby) 



Stricklandinia lirata Billings 



Stricklandinia ( ?) louisvillensis Nettelroth.. 



Stricklandinia melissa Billings 



Stricklandinia mult ilirata "Whitfield 



Stricklandinia salteri Billings 



Stricklandinia triplesiana Foerstc 



Stropheodonta acanthoptcra ( Whiteaves) . . . . 

 Stropheodonta corrngata Conrad 



CI 



CI 



A 



CI 



Ci 



Ar 

 N 



Ar 

 N 

 N 



Neosi- 

 liiriuu. 



N 

 N 

 N 

 N 

 N 

 N? 

 N 

 N 

 N 

 N 

 N 

 N 

 N 

 N 

 N 

 Ar 



N 



N 



N? 



Gu 



Tentac- 

 ulite, 



AVater- 

 lime. 



