426 SYNOPSIS OF AMERICAN FOSSIL BRACIIIOPODA. [bull. 87. 



Stropheodonta perplana (Conrad) — Oontiuued. 



Strophomeua (Strophodouta) crenistria Hall, Tenth Kep. N. Y. State (Jab. Nat. 

 Hist., 1857, p. 111. 



Strophomena (>Stiopbodoiita) I'riigilis Hall, Ibidem, 1857, ]). Id3. 



Stropliodonta fragilis Hall, Cieol. Iowa, I, Pt. II, 1858, p. 496, pl. 3, fig. 6. 



Strophodouta perplana Hall, Pal. New York, IV, 1867, pp. 92, 98, pl. 11, fig. 22; 

 pl. 12, iigs. 13-15; pl. 17, fig. 1. — Kathbuii, Proc. Boston Soc. Nat. Hist., XX, 

 1879, p. 25.— Hall, Second Ann. Rep. N. Y. State Geol., 1883, pl. 46, figs. 

 2-15.— Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 120, pl. 13, fig. 11.— 

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

 147, pl. 18, fig. 17. — Bcecher, American Jour. Sci., 3d ser., XLI, 1891, p. 357, 

 pl. 17, fig. 17.— Whiteaves, Cont. Canadian Pal., I, 1891, p. 220. 



Stropheodonta (Lcptostrophia) jierplana Hall and Clarke, Pal. New York, VIII, 

 Pt. I, 1892, p. 288, pl. 15, figs. 2-13. 



Loc. New York; Pennsylvania; Maryland; Ohio; Indiana; Kentucky; Illinois; 

 Iowa; Wisconsin; Eureka district, Nevada; Square Lake, Maine; Ontario 

 and Peace River, Canada; Rio Maecuru and Rio Curua, Province of Para, 

 Brazil. 



Stropheodonta perplana, nervosa Hall. Portage aud Chemung (Dev.). 



Strophomena nervosa Hall, Geol. N. Y. ; Rep. Fourth Dist., 1843, p. 266, fig. 1. 

 Strophodouta perplana var. nervosa Hall, Pal. New York, IV, 1867, p. 113, pl. 



19, figs. 13-16;— Second Ann. Rep. N. Y. State Geol., 1883, pl. 46, fig. 17. 

 Stropheodonta perplana var. nervosa Hall and Clarke, Pal. New York, VIII, Pt. 



I, 1892, tigs. 14, 15, 17. 

 Loc. Ithaca, Bath, Campbelltown, etc., New York. 



Stropheodonta perplana tulliensis Williams. Tully (Dev.). 



Strophodouta perplana var. tulliensis Williams, Bull. Geol. Soc. America, 1, 1890, 



p. 493, pl. 12, figs. 1-4. 

 Loc. Cuyler, New Y'ork. 



Stropheodonta planulata Hall. Lower Helderberg (Dev.). 



Strophodouta planulata ilall, Pal. New York, III, 1859, p. 184, pl. 16, figs. 9-12. 

 Loc. Schoharie, Dryhill, and Litchfield, New Y'ork. 



Stropheodonta plicata Hall. Hamilton (Dev.). 



Strophodouta plicata Hall, Thirteenth Rep. N. Y. State Cab. Nat. Hist., 1860, p. 



90;— Pal. New York, IV, 1867, p. 114.— Nettelroth, Kentucky Fossil Shells, 



Mem. Kentucky Geol. Survey, 1889, p. 149. 

 Loc. Iowa City and Independence, Iowa ; Thedford, Ontario ; Falls of Ohio. 



Stropheodonta prisca Hall. Clinton (Sil.). 



Stropheodonta prisca Hall, Pal. New York, II, 1852, p. 63, pl. 21, fig. 9. 

 Loc. Kirkland, Oneida County, New York. 



Stropheodonta profunda Hall. Clinton and Magara (Sil.). 



Leptseua profunda Hall, Pal. New York, II, 1852, p. 61, pl. 21, figs. 4, 5. 



Strophomena profunda Hall, Twelfth Rep. N. Y. State Cab. Nat. Hist., 1859, 

 p. 82. 



Strophomena niagarensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., I, 

 1865, p. 92, pl. 2, fig. 9. 



Strophodouta profunda Hall, Twentieth Rep. N. Y. State Cab. Nat. Hist., 1867, 

 pp. 369, 392, pl. 13, figs. 3, 4;— Twenty-eighth Rep. N. Y. State Mus. Nat. 

 Hist., 1879, p. 151, pl. 23, figs. 9, 10;— Eleventh Rep. Indiana State Geol., 

 1882, p. 289, pl. 23, figs. 9, 10; pl. 27, fig. 18;— Second Ann. Rep. N. Y. State 

 Geol., 1883, pl. 44, figs. 1-5 (ffigs. 19, 20).— Nettelroth, Kentucky Fossil 

 Shells, Mem. Kentucky Geol. Survey, 1889, p. 148, pl. 29, fig. 26; pl. 17, figs. 

 20, 21. 



