388 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. [bull. 87. 



Spirifer disjunctus sulcifer Hall and Clarke. Cbemung (Dev.). 



Spirifera tlisjunetiis var. sulcifer Hall and Clarke, Pal. New York, YIII, Pt. II, 



1895, p. 361, pi. 30, lig. 16. 

 Loc. Near Oleau, New York. 



Spirifer disparilis Hall = Metaplasia disparilis. 



Spirifer divaricatus Hall. Corniferous and Hamilton (Dev.). 



Spirifer divaricata Hall, Tenth Rep. N. Y. State Cab. Nat. Plist., 1857, \i. 133. 

 Spirifer venustus Hall, Thirteenth Rep. Ibidem,1860, p. ^2. 

 Spirifera divaricata Hall, Pal. New York, IV, 1867, p. 213, pi. 32, tigs. 1-6.— Net- 



telroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 113, 



pi. 11, tigs. 6-11; pi. 12, tigs. 5-11. 

 Spirifer divaricatus Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, pp. 24, 



27, 39, pi. 38, tigs. 15-17. 

 Loc. Schoharie, Statford, Williauisville, York, etc., New York; Port Colborne, 



Canada; Falls of Ohio; Lebanon, Kentucky. 

 Ois. Compare with S. luulticostatus Castelnau. 



Spirifer diibius Hall=Pentamerella dubia. 



Spirifer dubius Nettelroth. ^Niagara (Sil.). 



Spirifera dubia Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Sur- 

 vey, 1889, p. 115, pi. 33, figs. 23, 24. 

 Loc. Louisville, Kentucky. 



Spirifer duodenarius (Hall). Upper Helderberg (Dev.). 



Delthyris duodenaria Hall, Geol. N. Y. ; Rep. Fourth Dist., 1843, p. 171, tig. 5. 



Spirifera duodenaria Billings, Canadian Jour., n. ser., V, 1861, p. 256, figs. 65-67 ; — 

 Geol. Canada, 1863, p. 372, fig. 394.— Hall, Pal. New York, IV, 1867, p. 189, 

 pi. 27, figs. 13-16; pi. 28, figs. 24-33;— Second Ann. Rep. N. Y. State Geol., 

 1883, pi. 58, figs. 8-13.— Nettelroth, Kentucky Fossil Shells, Mem. Kentucky 

 Geol. Survey, 1889, p. 114, pi. 12, figs. 12, 13, 16. 



Spirifera duodenaria? Rathbun, Proc. Boston Soc, Nat. Hist., XX, 1879, p. 25. 



Spirifer duodenarius Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, pp. 19, 

 37, pi. 33, figs. 8-15. 



Loc. New York, Ontario, Columbus, Ohio; Falls of Ohio; Rio Maecuru, Province 

 of Para, Brazil. 



Spirifer duplicatus Hall= Spirifer dupliplicatus. 



Spirifer duplicicosta Phillips. Carboniferous. 



Spirifer duplicicostus Phillips, Geol. Yorkshire, II, 1829, p. 218, jtl. 10, fig. 1. 

 Spirifera duplicicosta Etheridge, Quart. Jour. Geol. Soc. London, XXXIV, 1878, 



p. 628. 

 Loc. Europe; Feilden Isthmus, lat. 82° 43'. 



Spirifer dupliplicatus (Conrad). Hamilton (Dev.). 



Delthyris dupliplicata Conrad, Jonr. Acad. Nat. Sci. Philadelphia, VIII, 1842, 



p. 261, pi. 14, fig. 16. 

 Spirifera duplicata Hall, Pal. New York, l\ , 1867, pp. 223, 236. 

 Loc. Near Smyrna, New York. 

 Ohs. Compare with S. granulosus Conrad. 



Spirifer eatoni Hall = Spirifer audaculus. 



Spirifer elizae Katbbun. Middle Devonian. 



Si)irifer eliz:e (HarttMS.) Rathbun, BuU. Buffalo Soc. Nat. Sci., I, 1874, p. 239, 



pi. 8, figs. 15,21; pi. 9, tig. 22. 

 Spirifera ellz:e Rathbun, Proc. Boston Soc. Nat. Hiet., XX, 1879, p. 28. 

 Loc. Erere, Province of Para, Brazil. 



