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



Zygospira modesta Hall — Continued. 



and Scbuchoit, Minnesota Gcol. Survey, III, 1893, p. 467, pi. 34, tigs. 42-44.- 



Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 155, fif^s. 146-149. pi. 



54, figs. 7-10, 12.— Keyes, Geol. Survey Missouri, V, 1895, p. 98. 

 Rliynclionella? modesta Pillings, Geol. Canada, 1863, p. 211, fig. 211. 

 Loc Cincinnati, Ohio; Turin, etc.. New York; Lattners, Iowa; Spring Valley, 



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



Zygospira iiicoletti Wiiicliell and Schucliert. Trenton (Ord.). 



Hallinani.ok'tti 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. HI, April 9, 1892, p. 



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

 Zygospira nicolleti Beeclier and Scliucliert, 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 



"ciarke, Pal. New York, VIII, Pt. II, 1893, p. 157. 

 Loc. Division 3 of Anticosti group, Anticosti. 

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



Zygospira putilla Hall and Clarke, Pal. New York,YIII, 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. Now York, 1, 1847, p. 140, pi. 33, fig. 5. 

 Rhynchonolla recurvirostris Billings, Geol. Canada, 1863, p. 168, fig. 1.52. 

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

 1892, p. 129. , , ^ _^^ 



Zygospira recurvirostra Winchell and Schuchert, Minnesota Geol. Survey, III, 

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

 Vlli, 1893, p. 71, pi. 10, figs. 7-21 ; pi. 11, figs. l-lO.-Hall and Clarke, Pal. New 

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



1897, p. 180. 

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

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

 raine groujt of Anticosti. 

 Zygospira saffordi Winchell and Scliucliert. Trenton (Ord.). 



Hallina saffordi W. and S., An.erican (iool., IX, 1892, p. 292;-Minne8ota Geol. 



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



VIII, Pt. II, 189.5, pi. 83, figs. 36-38. 

 Zygospira saflordi Beecher and Schuchert, Biol. Soc. Washington, VIII, 1893, p. 



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



Pt. II, ISeS^p. 151, figs. 139-141. 

 Inc. Lebanon, Tennessee; Highbridgc, Kentucky. 



Zygospira (?) subconcava Meek and Worthen. Lower Helderberg (Dev.). 



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

 pl. 7, fig. 1. 



Loc. I'erry County, Missouri. 

 Zygospira upliami W. and S.=Catazyga uphami. 



