1342 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Zygospira nicolleti — Continued. 



Zygospira nicolleti Beeclier and Schuchert, Biol. Soc. Washington, 8, pt. 2, 1893, 



p. 71, pi. 10, fig. 23; pi. 11, figs. 11, 12— Weller, Geol. Surv. New Jeraey, Pal., 



3, p. 161, pi. 10, figs. 27-30. — Grabau and Shimer, N. A. Index Fossils, 1, 



1907, p. 308, fig. 386a-c. 

 Black River: Minneapolis, Rochester, and Fountain, Minnesota; Decorah, Iowa; 



Beloit, Wisconsin; Auburn, Missouri; New Jersey. 



Zygospira obsoleta (Foerste). 



Protozyga obsoleta Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 133, pi. 



2, figs. 10a, b. 



Trenton (Cynthiana) : Near Millersburg, etc., Kentucky. 



Zygospira paupera Billings. 



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



Clarke, Pal. New York, 8, pt. 2, 1893, p. 157. 

 Anticostian (Gun River, Jupiter River): Near Jupiter River, etc., Anticosti. 



Zygospira putilla Hall and Clarke. See Atrypa putilla. 



Zygospira recurvirostris (Hall). 



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

 Amer. Geology, 1, pt. 2, 1855, p. 191, pi. 10, fig. 5. 



Rhynchonella recurvirostris Billings, Geol. Canada, 1863, p. 16S, fig. 152. — Lesley, 

 Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 899, figs. 



Anazyga recmvirostra Davidson, Suppl. British Sil. Brach., Pal. Soc, 1892, p. 219. 



Zygospira recurvirostra Chamberlin, Geol. Wisconsin, 1, 1883, p. 155, fig. — Win- 

 chell and Schuchert, Geol. Minnesota, 3, 1893, p. 466, pi. 34, figs. 3S-41.— 

 Beecher and Schuchert, Biol. Soc. Wasliington, 8, 1893, p. 71, pi. 10. figs. 

 7-21; pi. 11, figs. 1-10.— Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 54, 

 figs. 1-6.— Whiteaves, Geol. Surv. Canada, Pal. Toss., 3, pt. 3, 1897, p. 180.— 

 Beecher, Bull. U. S. Geol. Suiv., 87, 1S97, p. Ill, fig. 6.— Ruedemann, Bull. 

 New York State Mus., 49, 1902, p. 27.— Weller, Geol. Surv. New Jersey, Pal., 



3, 1903, p. 161, pi. 10, figs. 23-26.— Grabau and Shirmer, N. A. Index Fossils, 

 1, 1907, p. 307, fig. 3S5a-e — Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 

 7, figs. 4, 5.— Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 132, pi. 1, 

 fig. 2. 



Black River, Trenton: Martinsburg, etc., New York; Kentucky; Iowa; Minne- 

 sota; Wisconsin; Ontario; Manitoba, etc. 



Zygospira saffordi Winchell and Schuchert. 



Hallina saffordi Winchell and Schuchert, Amer. Geol., 9, 1892, p. 292; Geol. 



Minnesota, 3, 1893, p. 473, pi. 34, figs. 55-58.— Hall and Clarke, Pal. New 



York, 8, pt. 2, 1895, pi. 83, figs. 36-38. 

 Zygospira saffordi Beecher and Schuchert, Biol. Soc. Wasliington, 8, 1893, p. 



71, pi. 10, fig. 22; pi. 11, figs. 13, 13a.— Hall and Clarke, Pal. New York, 8, 



pt. 2, 1893, p. 151, figs. 139-141. 

 Stones River (Lebanon): Lebanon, Tennessee. 



Zygospira uphami Winchell and Schuchert. See Catazyga uphami. 



