scHucHERT] INDEX AND BIBLIOGRAPHY. 273 



Nucleospira concinna Hall. Corniferous-Hauiiltou (Dev.). 



Atrypa conciana Hall, Geol. N. Y.; Rep. Fourth Dist., 1843, p. 200, fig. 3. 



Nucleospira concinna Hall, Twelfth Rep. N. Y. State Cab. Nat. Hist., 1859, pp. 

 25, 26;— Pal. New York, IV, 1867, p. 279, pi. 45, figs. 33-57.— Davidson, Suppl. 

 British Silurian Brach., Paheontographical Society, 1882, p. 121. — Walcott, 

 Mon. U. S. Geol. Survey, VIII, 1884, p. 147.— Nettelroth, Kentucky Fossil 

 Shells, Mem. Kentucky Geol. Survey, 1889, p. 103, pi. 32, figs. 1-4.— Hall and 

 Clarke, Pal. New York, VIII, Pt. II, 1893, p. 145, fig. 131 ; pi, 48, figs. 12-17, 

 19-34; pi. 84, fig. 38. 



Loc. Moscow, Darien, etc.. New York; Monroe County, Pennsylvania; Thed- 

 ford, Ontario; Hardy County, Virginia; Columbus, Ohio; Falls of Ohio; 

 Lone Mountain, Nevada. 



Nucleospira elegans Hall, ? Niagara and L. Helderberg (Sil, and Dev.). 

 Nucleospira elegans Hall, Pal. New York, III, 1859, p, 222, pi, 28B, figs. 10-15.— 



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



104.— Hall and Clarke, Pal. New York, VIII, Pt. II, 1895, pi. 48, figs. 8-11. 

 Loc. Cherry Valley, New York; Cumberland, Maryland. In the Niagara near 



Louisville, Kentucky (Nettelroth). 



Nucleospira indianensis Miller=Parazyga hirsuta. 



Nucleospira pisiformis Hall. Niagara (Sil.). 



Orthis pisum Hall (nou Sowerby), Pal. New York, II, 1852, p. 250, pi. 2, fig. 1. 



Nucleospira pisiformis Hall, Pal. New York, III, 1859, pi. 28B;— Trans. Albany 

 Institute, IV, 1863, p. 226;— Twenty-eighth Rep. N. Y. State Mus. Nat. Hist., 

 1879, p. 160, pi. 25, figs. 22-28;— Eleventh Rep. State Geol. Indiana, 1882, p, 

 301, pi. 25, figs. 22-28.— Kayser, Richthofens China, IV, 1883, p. 47, pi, 4, 

 figs. 9-11,— Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol, Sur- 

 vey, 1889, p, 104, pi, 33, tigs, 7-9,— Keyes, Geol, Survey Missouri, V, 1895, p, 

 94, pi. 41, fig. 5. 



Loc. Wolcott, New York; Waldron, Indiana; Louisville, Kentucky; Pike 

 County, Missouri; Tshau-Tien, China. 



Nucleospira rotundata Whitfield. Waterlime (Sil.). 



Nucleospira rotundata Whitfield, Ann. New York Acad. Sci., II, 1882, p, 194;— 



Ibidem, V, 1891, p, 511, pi. 5, figs. 11-14;— Geol. Ohio, VII, 1895, p, 413, pi. 1, 



figs, 11-14. 

 Loc. Greenfield, Ohio. 



Nucleospira ventricosa Hall. Lower Helderberg (Dev.). 



Spirifer ventricosa Hall, Tenth Rep. N. Y, State Cab, Nat, Hist., 1857, p. 57. 

 Nucleospira ventricosa Hall, Pal. New York, III, 1859, p. 220, pi. 14, fig. 1; pi. 



28B, figs. 2-9.— Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 145, 



figs. 128-130; pi. 48, figs. 2-6, 18; pi. 84, figs, 39, 40, 

 Loc. Schoharie, Cherry \'alley, etc.. New York; Cumberland, Maryland, 



OBOLELLA Billings. Genotype O. cliromatica Billings. 



Obolella Billings, Geol. Vermont, II, 186], p. 946;— Pal. Fossils, I, 1861, p, 7,— 

 Hall, Sixteenth Rep. N. Y. State Cab, Nat, Hist,, 1863, p, 131,— Meek and 

 Hayden, Smithsonian Cont. to Knowledge, XIV, 172, 1864, p. 3.— Hall, Trans, 

 Albany Institute, V, 1867, ]>. 108.— Dall, American Jour, Conchology, VI, 

 1870, pp, 162, 164,— lUUings, Canadian Nat, Geol., u. ser., VI, 1871, p. 217, 

 figs. 5, 6;— American Jour. Sci., 3d ser.. Ill, 1872, p. 355, figs. 5-7;— Ibidem, 

 3d ser., XI, 1876, p. 176.— Ford, Ibidem, 3d ser., XXI, 1881, p. 131.— Walcott, 

 Bull, U, S, Geol. Survey, 30, 1886, \). 109.— Hall and Clarke, Pal. New York, 

 VIII, Pt. 1, 1892, pp, 66, 164;— Eleventh Ann. Rep, N, Y. State Geologist, 1894, 



Bull. 87 18 



