464 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. [bull. 87. 



Zygospira modesta Hall — Continued. 



and Schuchert, Minnesota Gleol. Survey, III, 1893, p. 467, pi. 34, fi<,'8. 42-44.— 



Hall uud Clarke, Pal. New York, VIII, Pt. II, 1893, p. 155, figs. 146-119, pi. 



54, fig.s. 7-10, 12.— Keyes, tieol. Survey Missouri, V, 1895, p. 98. 

 Rhynchonella? raodesta lUlliugs, Geol. Cauada, 1863, p. 211, fig. 211. 

 Loc. Cini-iunuti, Ohio; Turin, etc., New York ; Lattner.'^, Iowa; Spring Valley, 



Aliuuesota; Wisconsin; St. Louis County, Missouri; Ottawa, Canada (Ami). 



Zygospira nicoletti Winchell and Sclmcbert. Treutoii (Ord.). 



Haiiiuanicoletti W. and S., American Geol., IX, April 1, 1892, p. 293;— Minnesota 



Geol. Survey, III, 1893, p. 474, pi. 34, figs. .59-62. 

 Zygospira aquila Sardeson, Bull. Minnesota Geol. Survey, III, April 9, 1892, p. 



335, pi. 4, ligs. 15-18. 

 Zygospira nicolleti Beecher and Schuchert, Biol. Soc, Washington, VIII, Pt. II, 



" °1893, p. 71, pi. 10, fig. 23; pi. 11, figs. 11, 12. 

 Loc. Minneapolis, Rochester, and Fountain, Minnesota; Decorah, Iowa; Beloit, 

 Wisconsin ; Auburn, Missouri. 

 Zygospira paupera Billings. Anticosti (Sil.). 



Zygospira paupera Billings, Cat. Sil. Fossils Anticosti, 1866, p. 46.— Hall and 



Clarke, Pal. New York, VIII, Pt. II, 1893, p. 157. 

 Loc. Division 3 of Anticosti group, Anticosti. 



Zygospira putilla Hall and Clarke. ? Lorraine (Ord.). 



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

 150, p. 365, pi. 54, figs. 35-37 ; pi. 83, figs. 29, 30. 



Loc. Pike County, Missouri. 

 Zygospira recurvirostris (Hall). Trenton (Ord.). 



Atrypa recurvirostris Hall, Pal. New York, 1, 1847, p. 140, pi. 33, fig. 5. 



Rhynchonella recurvirostris Billings, Geol. Canada, 1863, p. 168, fig. 152. 



Anazyga recurvirostra Davidson, Suppl. British Sil. Brachiopoda, Pal. Soc, 



1892, p. 129. 



Zygospira reci;rvirostra Winchell and Schuchert, Minnesota Geol. Survey, III, 



1893, p. 466, pi. 34, figs. 38-41.— Beecher and Schuchert, Biol. Soc. Washington, 

 VIII, 1893, p. 71, pi. 10, figs. 7-21 ; pi. 11, figs. 1-10.— Hall and Clarke, Pal. New 

 York, VIII, Pt. II, 1895, pi. 54, figs. 1-6.— Whiteaves, Pal. Foss., Ill, Pt. HI, 

 1897, p. 180. 



Loc. New York; Kentucky; Iowa; Minnesota; Wisconsin; Ottawa, Canada; 

 Lake Winnipeg, Manitoba. According to Billings it occurs also in the Lor- 

 raine group of Anticosti. 

 Zygospira safFordi Winchell and Sclmcliert. Trenton (Ord.). 



Hallina saffordi W. and S., American Geol., IX, 1892, p. 292;— Minnesota Geol. 

 Survey, III, 1893, p. 473, pi. 34, figs. 55-58.— Hall and Clarke, Pal. New York, 

 VIII, Pt. II, 1895, pi. 83, figs. 36-38. 



Zygospira saffordi Beecher and Schuchert, Biol. Soc. Washington, A^II, 1893, p. 

 71, pi. 10, fig. 22; pi. 11, figs. 13, 13a.— Hall and Clarke, Pal. New York, VIII, 

 Pt. II, 1893, p. 151, figs 139-141. 



Loc. Lebanon, Tennessee; Highbridge, Kentucky. 



Zygospira (?) subconcava Meek and Wortlien, Lower Helderbero- (Bev.). 

 Zygospira subconcava Meek and Worthen, Geol. Survey Illinois, III, 1868, ji. 380, 



pi. 7, fig. 1. 

 Loc. Perry County, Missouri. 



Zygospira upbami W. and S. = Catazyga upbami. 



