BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1341 



ZYGOSPIRA HEADI Hall. See Catazyga headi. 

 ZYGOSPIRA HEADI Meek. See Catazyga headi schuchertana. 



Zygospira kentuckiensis James. 



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



Zygospira kentuckiensis Nettelroth, Kentucky Fossil Shells, Mem. Kentucky 

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

 York, 8, pt. 2, 1895, pi. 54, figs. 11, 15, 16. Foerste, Amer. Geol., 31, 1903, 

 p. 336 (loc. occ.). 



Richmond (Waynesville): Oldham and Jefferson Counties, Kentucky. 



Plesiotypes.Czt. No. 51187, U.S.N.M. (Nettelroth). 



Zygospira(?) mica (Billings). 



Rhynchonella mica Billings, Cat. Sil. FOBS. Anticosti, 1866, p. 44. 

 Zygospira? mica Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 157. 

 Anticostian (Jupiter River): The Jumpers, Anticosti. 



Zygospira(?) minima Hall. 



r Zygospira minima Hall, Desc. new species Foss. Waldron, Indiana, 1879, p. 14; 

 llth Rep. Indiana State Geol., 1882, p. 305, pi. 27, fig. 7; Trans. Albany 

 Inst., 10, 1883, p. 70. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p. 1283, 



fig. 

 Niagaran (Waldron) : Waldron, Indiana. 



Zygospira modesta Hall. 



Atrypa modesta (Say) Hall, Pal. New York, 1, 1&47, p. 141, pi. 15, fig. 15. 

 Emmons, Amer. Geology, 1860, 1, pt. 2, p. 192, pi. 10, fig. 15. Hall, 13th 

 Rep. New York State Cab. Nat. Hist., 1860, p. 69. 



Zygospira modesta Hall, 15th Rep. New York State Cab. Nat. Hist., 1862, p. 154; 

 20th Rep., ibid., 1867, p. 267, fig. 12. Meek, Pal. Ohio, 1, 1873, p. 125, pi. 

 11, fig. 4. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 58. Davidson, 

 Geol. Mag., dec. 2, 8, 1881, p. 12, fig. 15. Chamberlin, Geol. Wisconsin, 1, 

 1883, p. 174, fig. Miller, N. A. Geol. Pal., 1889, p. 388, fig. 640. Lesley, 

 Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1283, figs. Winchell and 

 Schuchert, Geol. Minnesota, 3, 1893, p. 467, pi. 34, figs. 42-44. Hall and 

 Clarke, Pal. New York, 8, pt. 2, 1893, p. 155, figs. 146-149; pi. 54, figs. 7-10, 

 12. Keyes, Geol. Surv. Missouri, 5, 1895, p. 98. Grabau and Shinier, N. A. 

 Index Fossils, 1, 1907, p. 308, fig. 385f-i. Cumings,'32d Ann. Rep. Dep. 

 Geol. Nat. Res. Indiana, 1908, p. 946, pi. 36, figs. 8-Si. Foerste, Bull. Sci. 

 Lab. Denison Univ., 16, 1910, p. 29, pi. 2, fig. 15a-b. Bassler, Bull. Virginia 

 Geol. Surv., 2a, 1909, pi. 14, figs. 13-15. 4 



Rhynchonella? modesta Billings, Geol. Canada, 1863, p. 211, fig. 211. 



Eden- Richmond: Cincinnati, Ohio (Fainnount), and vicinity; Ohio; Kentucky; 

 Indiana; Tennessee; Virginia; New York; Iowa, etc. 



ZYGOSPIRA MODESTA var. CINCINNATIENSIS Grabau and Shimer. See Zygospira 

 cincinnatiensis. 



ZYGOSPIRA MODESTA var. KENTUCKIENSIS James. See Zygospira kentuckiensis. 



Zygospira nicolleti Winchell and Schuchert. 



Hallina nicolleti Winchell and Schuchert, American Geol., 9, April 1, 1892, p. 



293; Geol. Minnesota, 3, 1893, p. 474, pi. 34, figs. 59-62. 

 Zygospira aquila Sardeson, Bull. Geol. Minnesota, 3, April 9, 1892, p. 335, pi. 4, 



figs. 15-18. 



