SCHUCHEKT. 



INDEX AND BIBLIOGRAPHY. 463 



ZYGOSPIRA Hall— Continued. 



Hallina Winchell aucl Scliuchert, Minnesota Geol. Survey, III, 1893, p. 471. 

 Protozyga Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 151. 

 Protozyga, Hallina and Zygospira Hall and Clarke, Thirteenth Ann. Rep. N. Y, 

 State Geologist, 1895, pp. 809, 810, 812. 



Zygospira sequila Sarcleson = Z. nicoletti. 



Zygospira anticostiensis D avid son =Catazyga erratica. 



Zygospira cincinnatiensis Meek. Lorraine (Ord.). 



Zygospira cincinnatiensis (James) Meek, Pal. Ohio, 1, 1873, p. 126, pi. 11, fig. 5. — 



Miller, Cincinnati Quart. Jour. Sci., II, 1875, p. 59. — Hall and Clarke, Pal. 



New York, VIII, Pt. II, 1895, pi. 54, figs. 13, 14. 

 Loc. Cincinnati, Ohio. 



Zygospira concentrica Ulricli. Lorraine (Ord.). 



Zygospira concentrica Ulrich, Jour. Cincinnati Soc. Nat. Hist., II, 1879, p. 14, 



pL 7, fig. 10. 

 Loc. Cincinnati, Ohio. 



Zygospira deflecta Hall. Trenton (Ord.). 



Atrypa deflecta Hall, Pal. New York, I, 1847, p. 140, pi. 33, fig. 4. 

 Zygospira deflecta Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 157. 

 Loc. Lewis County, New York ; Ottawa, Canada. 



Zygospira exigua (Hall). Trenton (Ord.). 



Atrypa exigna Hall, Pal. New York, 1, 1847, p. 141, pi. 33, fig. 6. 

 Genus? exigua Hall, Twelfth Rep. N. Y. State Cab. Nat. Hist., 1859, p. 66. 

 Protozyga exigua Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 149, figs. 



137, 138, pi. 54, figs. 47, 48. 

 Loc. Lowville, Watertown, and Martinsburg, New York. 



Zygospira erratica Davidson=Catazyga erratica. 



Zygospira headi Hall=Catazyga headi. 



Zygospira kentuckiensis James. Lorraine (Ord.). 



Zygospira modesta var. kentuckiensis James, The Paleontologist, 1878, p. 7. 

 Zygospira kentuckiensis Nettelroth, Kentucky Fossil Shells, Mem. Kentucky 

 Geol. Survey, 1889, p. 138, pi. 34, figs. 21-25.— Hall and Clarke, Pal. New 

 York, VIII, Pt. II, 1895, pi. 54, figs. 11, 15, 16. 

 Loc. Oldham and Jefferson counties, Kentucky. 



Zygospira (?) mica (Billings). Anticosti (Sil.). 



Rhyncbonella mica Billings, Cat. Sil. Foss. Anticosti, 1866, p. 44. 

 Zygospira ? mica Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 157. 

 Loc. Division 4 of the Anticosti group, Anticosti. 



Zygospira (?) minima Hall. Niagara (Sil.). 



Zygospira minima Hall, Descrip. n. sp. Foss. Waldron, Indiana, 1879, p. 14; — 



Eleventh Rep. Indiana State Geologist, 1882, p. 305, pi. 27, fig. 7; — Trans. 



Albany Institute, X, 1883, p. 70. 

 Loc. Waldron, Indiana. 



Zygospira modesta Hall. Utica and Lorraine (Ord.). 



Atrypa modesta (Say) Hall, Pal. New York, I, 1847, p. 141, pi. 15, fig. 15;— Thir- 

 teenth Rep. N. Y. State Cab. Nat. Hist., 1860, p. 69. 



Zygospira modesta Hall, Fifteenth Rep. N. Y. State Cab. Nat. Hist., 1862, p. 

 154;— Twentieth Rep; Ibidem, 1867, p. 267, figs. 1, 2.— Meek, Pal. Ohio, 1, 1873, 

 p. 125, pi. 11, fig. 4. — Miller, Cincinnati Quart. Jour. Sci., II, 1875, p. 58. — 

 Davidson, Suppl. British Sil. Brachiopoda, Pal. Soc, 1882, p. 122.— Winchell 



