52 SYNOPSIS OF AMERICAN FOifSIL BRACIIIOrODA. (bull. 87. 



Table VI. — Devonian BracHopoda — Coutiuued. 



Species. 



Rhynchospira rectirostra Hall 



Khynchotrema formosa (Hall) 



Roemerella grandis Vanuxem 



Scenidium insignis Hall 



Schizobolus concentricns (Vanuxem) 



Schizocrania ( ? ) helderbergia Hall 



Schizocrania superincreta Barrett 



Schizophoria carinata Hall 



Schizopboria macfarlanii (Meek) 



Scbizophoria manitobensis Whiteaves 



Schizophoria mnltistriata Hall 



Schizophoria ( ? ) peduncularis Hall 



Schizopboria propinqua Hall 



Schizophoria striatula (Schlotheim) 



Schizophoria tioga Hall 



Schizophoria tulliensis (Vanuxem) 



Selenella gracilis Hall and Clarke 



Seminula ( ? ) rogersi Hall and Clarke 



Spirifer acanthopterus (Conrad) 



Spirifer acvuninatus (Conrad) 



Spirifer alseformis de Verneuil 



Spirifer aldrichi Etheridge. Devonian. 



Spirifer amarus Swallow 



Spirifer angustus Hall 



Spirifer annte Swallow 



Spirifer arcticus Haughton. Devonian. 



Spirifer arctisegmentus Hall 



Spirifer arenosus Conrad 



Spirifer asper Hall 



Spirifer audaculus (Conrad) 



Spirifer audaculus macronotus Hall 



Spirifer belphegor Clarke 



Spirifer bidorsalis A. Winchell 



Spirifer billingsanus Miller 



Spirifer bimesialis Hall 



Spirifer byrnesi Nettelroth 



Spirifer concinnus.Hall 



Spirifer censors A. Winchell 



Spirifer corticosus HaU 



Spirifer ( ? ) costalis Castelnau 



Spirifer cumberlandise Hall 



Spirifer cyclopterus Hall 



Spirifer davisi Nettelroth 



Spirifer disjunctus Sowerby 



Spirifer disjunctus occidentalis Whiteaves . . 

 Spirifer disjunctus sulcifer Hall and Clarke. 



Spirifer divaricatus Hall 



Spirifer duodenarius HaU 



Spirifer dupliplicatus (Conrad) 



Spirifer engelmanni Meek 



Spirifer euruteines Owen 



Eodevonian. 



Lower 

 Hol- 

 der- 

 berg. 



X 

 X 



X 

 X 



Oris- 

 kany. 



Mesodevonian. 



Scho- 

 harie, 

 Cornif- 

 erous. 



Tully, 

 Hamil- 

 ton, 

 Marcel- 

 lus. 



Co 



Co 

 Co 



Co 

 Co 



H 



Neodevonian. 



Port- 

 age, 

 Huron, 

 Gene- 



MD 



MD 



Tu 



H 

 H 



Co 

 Co 



X 

 X 



H 

 H 

 H 



H 



M,H 



H 



Co? 



H 



H 



H 

 H 



Co 

 Co 



H 



H 

 MD 



H 



G 



Che- 

 mung, 

 Ithaca. 



C 



ND 

 ND 



KD 



G 



ND 



C 



ND 



C 



