280 SYNOPSIS OF AMERICAN FOSSIL I5RACHIOPODA. [mix. 87. 



Orbiculoidea manhattanensis (Meek and Haydeii). Upper Carboniferous. 



Di.si'iiia iiiiuilKitteiiMis Meek ;iiid llaydeu, I'roc. Acad. Nat. Sci. Philadelphia, 



1859, p. 25. 

 Loc. Near Manhattan, KauLsas. 



Orbiciiloidea marginalis (Wliitfield). Hamilton (Dev.). 



JJi8ciu;i marginalis Whitlield, Ann. Rep. Gcol. Survey Wisconsin, 1880, p. 70; — 



Geo]. Survey Wisconsin, IV, 1882, p. 325, pi. 2.5, fig. 11. ' 



Orbiculoidea maPKinalis Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, p. 127, 



pi. 4F, fig. 17. 

 Loc. Milwaukee, Wisconsin. 



Orbiculoidea minuta (Hall). Marcellus-Hamilton (Dev.). 



Orbicula minuta Hall, Geol. N. Y. ; Rep. Fourth Dist., 1843, p. 180, fig. 9. 

 Discina uiinuta Hall, Pal. New York, IV, 1867, p. 16, pi. 1, fig. 16.— Walcott, Hon. 



U. S. Geol. Survey, VIII, 1884, p. 112, pi. 13, fig. 5.— Whitfield, Annals N. Y. 



Acad. Sci., V, 1891, p. 547, pi. 11, figs. 5, 6;— Geol. Ohio, Vll, 1895, p. 442, pi. 7, 



figs. 5, 6. 

 Orbiculoidea minuta Beecher, American Jour. Sci., 3d ser., XLI, 1891, p. 356, pi. 



17, tigs. 5-7; — American Jour. Sci., 3d ser., XLIV, 1892, p. 150, pi. 1, figs. 4-6. 

 Loc. Avon, New York; Delaware County, Ohio; near Eureka, Nevada. 



Orbiculoidea missouriensis (Sliiimard). Upper Carboniferous. 



Disciua missouriensis Shumard, Trans. St. Louis Acad. Sci., 1, 1858, p. 221. 

 Discina uitida? Meek and Worthen (non Phillips), Geol. Survey Illinois, V, 1873, 



p. 572, pi. 25, fig. 1. 

 Disciua nitida White, Thirteenth Rep. State Geologist Indiana, 1884, p. 121, pi. 



25, fig. 10.— Keyes, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 226.— Hall and 



Clarke, Pal. New York, VIII, Pt. I, 1892, p. 131, pi. 4F, figs. 23-28.— Keyes, 



Geol. Survey Missouri, V, 1895, p. 39, pi. 35, fig. 6. 

 Discina meekana Whitfield, Annals N. Y. Acad. Sci., II, 1882, p. 228. — Herrick, 



Bull. Denison Univ., II, 1887, p. 145, pi. 2, fig. 8.— Whitfield, Annals N. Y. 



Acad. Sci., V, 1891, p. 598, pi. 15, figs. 1-3;— Geol. Ohio, VII, 1895, p. 483, pi. 



11, figs. 1-3. 

 Loc. Lexington, Missouri; Illinois; Carbon Hill and Flint Ridge, Ohio; Des 



Moines, Iowa; Vermilion County, Indiana. 

 Ohs. This species is not D. nitida Phillips. It difi:'ers from it in form and in the 



muscular scars. 



Orbiculoidea (?) munda (Miller and Gurley). Upper Carboniferous. 



Discina munda Miller aud Gurley, Bull. Illinois State Mus. Nat. Hist., 3, 1893, p. 



71, pi. 7, figs. 6, 7. 

 Loc. Kansas City, Missouri. 

 Ohs. This species may be a Lingulodisciua, but since the ventral valve is 



unknown satisfactory generic reference can not be made. 



Orbiculoidea neglecta (Hall). Chemung (Dev.). 



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



Pal. New York, IV, 1867, p. 24, pi. 1, tigs. 12, 13. 

 Loc. Ithaca, New York. 



Orbiculoidea newberryi Meek = Lingulodisciua newberryi. 

 Orbiculoidea nitida (Phillips), Upper Carboniferous. 



Orbicula nitida Phillips, Geol. Yorkshire, II, 1836, p. 221, pi. 9, tigs. 10-13. 

 fDisciiia nitida Walcott, Mou. U. S. Geol. Survey, VIII, 1884, p. 213, pi. 7, fig. 4. 

 Loc. England ; White Pine district, Nevada, 



