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



Stropheodonta erratica A. Wincliell. flamiltou (Dev.). 



Stropliodonta erratica and varieti(!8 solidicosta and fissicosta A. Wiuchell, Rep. 



Lower Teuinsula Micbiji^an, 18fi6, p. 93. 

 Loc. Grand Traverse region, Michigan. 

 Ohs. This species may prove to be only a local variation of S. costata Owen. 



Stropheodonta feildeni Etheridge. ? Lower Devonian. 



Stropbodoula feildeui Etberidge, Quart. .lour. Oeol. Soc. London, XXXIV, 1878, 



p. 598, pi. 25, fig. 4. 

 Loc. Cape Hilgard, lat. 79*^ 41'. 

 Ohs. Since tbis species is very closely related to S. magnifica of tbe Oriskany 



sandstone the borizon is probably Lower Devonian. 



Stropheodonta galatea (Billings). Lower Devonian. 



Stropbomena galatea Billings, Pal. Fossils, II, 1874, p. 20, fig. 9. 

 Loc. Indian Cove, Gasjic, Canada. 



Stropheodonta (?) geniculata (Shaler). Anticosti (Sil.). 



Bracbyprion geniculatnm Sbaler, Bull. Mus. Comp. Zool., 4, 1865, p. 63. 

 Loc. Near Southwest Point, Anticosti. 



Stropheodonta (?) gilpeni (Dawson), Ul)per Arisaig (Sil.). 



Stropbomena gilpeni Dawson, Canadian Nat. Geol., n. ser., IX, 1880, p. 341. 

 Loc. Nova Scotia, Canada. 



Stropheodonta hemispherica Hall. Upper H elderberg (Dev.) 



stropbomena (Stropbodonta) hemispherica Hall, Tenth Rep. N. Y. State Cab. 

 Nat. Hist., 1857, p. 113. 



Strophodonta hemispherica Hall, Pal. New York, IV, 1867, p. 90, pi. 13, figs. 12, 

 13;— Second Ann. Rep. N. Y. State Geol., 1883, pi. 45, fig. 23.— Nettelroth, Ken- 

 tucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 144, pi. 18, figs. 4-6. 



Loc. New York; Ohio; Indiana; Kentucky; Ontario. 



Stropheodonta insequiradiata Hall. Upper Helderberg (Dev.). 



Stropbomena (Strophodonta) insequiradiata Hall, Tenth Rep. N. Y. State Cab. 

 Nat. Hist., 1857, p. 113, figs. 1-3. 



Stropbomena inipquistriata Billings, Canadian Jour. Sci. Arts, VI, 1861, p. 338, 

 fig. 113;— Geol. Canada,1863, p. .367, iig. 375;— Pal. Fossils, 11,1874, p. 24, fig. 13; 

 pi. 2, fig. 4; p. 240. 



Strophodonta inrequiradiata Hall, Pal. New York, IV, 1867, p. 87, pi. 11, figs. 24-31 ; 

 pi. 12, fig. 12; pi. 13, figs. 6-11 ;— Second Ann. Rep. N. Y. State Geol., 1883, pi. 45, 

 figs. 13, 14.— Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 120, pi. 11, fig. 11. 



Stropheodonta iua-quiradiata Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, 

 pi. 14, figs. 13, 14. 



Loc. Albany and Schoharie counties. New York; Columbus, Ohio; Eureka dis- 

 trict, Nevada; Gasp^ Bay, Canada. 



Stropheodonta inaequistriata (Conrad). Corniferons to Hamilton (Dev.). 



Stroi)homena inrcquistriata Conrad, Jour. Acad. Nat. Sci. Philadelphia, VIII, 1842, 

 p. 254, pi. 14, fig. 2.— Hall, Geol. N. Y. ; Rep. Fourth Dist., 1843, p. 200, fig. 4.— 

 Billings, Canadian Jour. Sci. Arts, VI, 1861, p. 338, figs. 113, 114;— Geol Can- 

 ada, 1863, p. 367, fig. 375. 



Stropbomena (Strophodonta) ina-quistriata Hall, Tenth Rep. N. Y. State Cab_ 

 Nat. Hist., 1857, p. 142. 



Strophodonta inuMjuistriata Hall, Pal. New York, IV, 1867, p. 93, pi. 12, iigs. 6-8; 

 p. 106, pi. 18, fig. 2 ;— Second Ann. Rep. N. Y. State Geol., 1883, pi. 4.5, figs. 1-6.— 

 Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 

 145, pi. 17, figs. 10, 11. 



