278 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. |bull.87. 



Orbiculoidea (?) capax (White). Kiuderliook (L. Carb.). 



Disciiia capax White, Proc. Boston Soc. Nat. Hist., IX, 1862, \). 30. — A. Wiucliell, 

 Proc. Acad. Nat. Sci. Philadelpliia, 186."), p. 112; — Proc. Ainericau Phil. Soc, 

 XII, 1870, p. 249. 



Loc. Burlington, Iowa; Girard and Rockville, Ohio (A. Wiucholl). 



Ohn. This species shonld bo conix)ared with Linjjulodiscina newberryi Hall. 



Orbiculoidea capuliformis (^NFcCliesney). TJUper Carbon iferous. 



nifsciiia capiililornia McChesney, New Pal. Fossils, 1860, p. 72; — Trans. Chicago 



Acad.Sci.,1, 1868, p. 73, id.2, fig. 20. 

 Loc. Springfield, Illinois. 

 01)8. Compare with O. convexa Shuuiard. 



Orbiculoirtea coiiica Dwigcht— Schizotrota conica. 



Orbiculoidea conradi (Hall). Lower Helderberg (Dev.). 



Discina couradi Hall, Pal. New York. Ill, 1859, \kU\1, ]>1. 9, ligs. 16, 17; pi. lOA, 



fig. 2. 

 Loc. Near Hudson, New York. 



Orbiculoidea convexa (Sluimard). Upper Carboniferous. 



Discina ronvt-xa Sliuniard, Trans. St. Loins Acad. Sci., 1, 1858, p. 221. — White, 



Thirteenth Rep. State Geol. Indiana, 1884, p. 121, pi. 25, fig. 9.— Ilenick, Bull. 



Denison l^ui\ ., II, 1887, pi. 3, fig. 19. — Keyes, Geol. Survey Missouri, V, 1895, 



p. 40, pi. 35, fig. 7. 

 Loc. Valley of Verdigris River, Kansas; KansasClty, Missouri; Vermilion County, 



Indiana; Newark, Ohio. 

 Ohfi. See Orbiculoidea capuliformis McChesney. 



Orbiculoidea discus Hall. Lower Heklerberg (Dev.). 



Discina discus Hall, Pal. New York, III, 1859, p. 159, pi. 9, figs. 13-15. 

 Schizocrauia ( f ) discus Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 132. 

 Orbiculoidea discus Hall and Clarke, Ibidem, 1892, pi. 4E, fig. 13. 

 Loc. Near Hudson and Albany counties. New York. 



Orbiculoidea doria (Hall). Hamilton (Dev.). 



Discina doria Hall, Sixteenth Rep. N. Y. State Cab. Nat. Hist., 1863, p. 26; — Pal. 

 New York, IV, 1867, p. 19, pi. 2, figs. 19-22, 31 (?30).— Nettelroth, Kentucky 

 Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 32. 



Loc. Madison County, New York; Thedford, Ontario; Clark County, Indiana. 



Orbiculoidea elmira (Hall). • Chemung (Dev.). 



Discina elmira Hall, Sixteenth Rep. N. Y. State Cab. Nat. Hist., 1863, p. 29; — 



Pal. New York, IV, 1867, p. 24, pi, 2, figs. 38, 39. 

 Loc. Elmira, New York; Wellsboro, Pennsylvania. 



Orbiculoidea gallaheri (A. Wincliell). Marsliall (L. Carb.). 



Discina gallaheri A. Winchell, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 112; — 



Proc. American Philosophical Soc, XII, 1870, p. 249. 

 J. or. Hillsdale, Michigan ; Granville, Ohio; Shafers, Pennsylvania. 

 Orbiculoidea herzeri Hall and Clarke. Waverly (L. Carb.). 



Orbiculoidea herzeri Hall and Clarke, I'al. New York, VIII, Pt. I, 1892, pp. 



126, 127, 178. 

 Orbiculoidea pulchra Hall and Clark., Ibidem, 1892, pi. IE, fig. 19; pi. 4F, figs. 



9-13,30, (f 14-16). 

 Loc. Berea and Bacou.sburg, Ohio; Meadville, Pennsylvania. 



Orbiculoidea humilis (Hall). Marcellus and Hamilton (Dev.). 



Discina humilis Hall, Sixteenth Rep. N. Y. State Cab. Nat. Hist., 1863, p. 25;— 

 Pal. New York, IV, 1867, p. 16, pi. 2, fig. 18.— Whitfield, Annals N. Y. Acad. 

 Sci., V, 1891, p. 560;— Geol. Ohio, VII, 189.5, p. 452, pi. 8, figs. 1, 2. 



Loc. Bridgewater, Cauaudaigua Lake, etc., New York; Leroy, Ohio. 



