s«iin(.iF.KT.i INDEX AND BIBLIOGRAPHY. 279 



Orbiciiloidea illinoisensis (Miller and Gurley). Ui>i>er Carboniferous. 



Dis(!ina illinoioiisis Miller :ui.l Gurley, Bull. Illinois State Mus. Nat. Disi.,.'?, 1893, 



p. 70, pi. 7, liga. 2-5. 

 J.ov. Knox and Peoria counties, Illinois. 

 Ohs. Closely related to O. eonvexa. 



Orbiculoidea jervisensis (liarrett). Oriskany (Dev.). 



Diseina jervensis Barrett, Annals N. Y. Acad. Sci., I, 187S, p. 121. 

 Loc. Port Jervis, New York. 



Orbiculoidea keokuk {(xuiley). Keokuk (L. Carb.). 



Diseina keokuk Ciurley, Nc^A' Carb. Fossils, 1884, p. 6. 

 Loc. Crawfordaville, Indiana. 



Orbiculoidea lamellosa Hall. Trenton and Lorraine (Ord.). 



Orbicula huiiellosa Hall (non Broderip, 1833), Pal. New York, 1, 1847, p. 9'J, })]. 



30, fig. 10. 

 Orbicula truncata Emmons, American Geology, Pt. II, 1855, p. 200, lig. r>2. 

 Diseina truncata Emmons, Manual of (Jeol., 18(30, p. 09. 

 Orbiculoidea lamellosa? Wincbell and Sebucbert, Minnesota Gcol. Survey, III, 



1893, p.364, pl.29. fig. 25. 

 Orbiculoidea lamellosa Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 



4E, fig. 12. 

 Diseina circe Billings, I'al. Fossils, 1, 1862, p. 51, fig. 55; — Geol. Canada, 1863, 



p. 159, fig. 125. 

 Loc. Middleville and Lowville, New York; Bellville and Ottawa, Canada; 



Spring Yallej', Minnesota. 

 Ohs. Orbicula lamellosa Broderip, is tbe type species of Discinisca, and Hall's 



name will therefore stand. 



Orbiculoidea lodiensis ( Vanuxein). Genesee (Dev.). 



Orbicula lodensis Vannxem, Geol. N. Y. ; Rep. Tbird Dist., 1842, p. 168, fig. 1.— 



Hall, Ibidem, Rep. Fourtb Dist., 1843, p. 223, fig. 1. 

 Diseina lodensis Hall, Pal. New York, IV, 1867, p. 22, pi. 1, fig. 14; pi. 2, fig. 35.— 



Rathbun, Bull. Bufialo Soc. Nat. Sci., I, 1874, p. 257;— Proc. Boston Soc. Nat. 



Hist., XX, 1879, p. 17.— Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 112, 



pi. 2, fig. 5.— Clarke, Bull. U. S. Geol. Survey, 16, 1885, p. 24.— Wbitfield, 



Annals N. Y. Acad. Sci.,V, 1891, p. 547, pi. 11, fig. 7;— Geol. Obio, VII, 1895, 



p. 442, pi. 7, fig. 7. 

 Diseina sp. a A. Ulrich, N. Jabrb. fiir Mineral., Beilageband, VIII, 1892, p. 81, pi. 



5, fig. 10. 

 Orbiculoidea lodensis Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, ].l. 4F, 



fig. 21. 

 Loc. Lodi, etc., New York ; Wbite Pine district, Nevada; Erere, Province of Para, 



Brazil; Cbabuarani, Bolivia. In tbe Marcellus sbale of Delaware County, 



Ohio (Wbitfield). 



Orbiculoidea lodiensis media Hall. M'arcellus-CheuHUig (Dev.). 



Diseina media Hall, Sixteenth Rep. N. Y. State Cab. Nat. Hist., 1863, p. 27;— 



Pal. New York, IV, 1867, j). 20, j)!. 2, figs. 25-29.— Walcott, Mon. U. S. Geol. 



Survey, VIII, 1S8I. ]>. 113. 

 Orl)ieuloid<'a media Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 4E, 



figs. 15-17. 

 /.Of. Seneca and Canandaigua lakes, New York; Chemung group, Troupsburg, 



New York. 



Orbiculoidea magnifica (Herrick). Waverly (Tj, Carb.). 



Diseina, magnifica Herrick, Bull. Geol. Soc. America, II, 1891, p. 46, pi. 1, fig. 17. 

 Loc. Wooster, and Ashland County, Obio. 



