BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 945 



Parastrophia hemiplicata Hall. 



Atrypahemiplicata Hall, Pal. New York, 1, 1847, p. 144, pi. 33, fig. 10. Billings, 



Canadian Nat. Geol., 1, 1856, p. 208, figs. 20-23. Emmons, Amer. Geology, 1, 



pt. 2, 1855, p. 190, pi. 10, fig. 10. 

 Pentamerus hemiplicatus Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, 



p. 66. Billings, Canadian Jour., 4, 1859, p. 316. 

 Camarella hemiplicata Billings, Geol. Canada, 1863, p. 168, fig. 154. Chapman, 



Canadian Jour., n. s., 7, 1862, p. 114, fig. 106; Expos. Min. and Geol. Canada, 



1864, p. 118, fig. 106; p. 171, fig. 188. Miller, N. A. Geol. Pal., 1889, p. 338, 



fig. 545. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 112, figs. 

 Anastrophia? hemiplicata Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 



382, pi. 30, figs. 29-31. Whiteaves, Pal. FOBS., 3, pt. 3, 1897, p. 167. 

 Parastrophia hemiplicata Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 221, 



pi. 63, figs. 1-3. Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 158. Ruede- 



mann, Bull. New York State Mus., 49, 1902, p. 26. Weller, Geol. Surv. New 



Jersey, Pal. 3, 1903, p. 158, pi. 10, figs. 11-14. Grabau and Shimer, N. A. 



Index Fossils, 1, 1907, p. 271, fig. 327. Wilson, Bull. Canada Geol. Surv., 



Mus., 2, 1914, pp. 1-10, pi. 4, figs. 1-34. 

 Atrypa circulus Hall, Pal. New York, 1, 1847, p. 142, pi. 33, fig. 7; 12th Rep. New 



York State Cab. Nat. Hist., 1859, p. 65. Emmons, Amer. Geology, 1, pt. 2, 



1855, p. 190, pi. 10, fig. 7. 



Camarella circulus Miller, Amer. Pal. Foss., 1877, p. 107. 

 Camarella bernensis Sardeson, Bull. Minnesota Acad. Nat. ScL, 3, 1892, p. 328, 



pi. 4, figs. 4-6. 

 Trenton: Middleville, Watertown, etc., New York; Pennsylvania; Wisconsin; 



Minnesota; New Jersey; Ontario; Manitoba; Baffin -Land. 



Parastrophia hemiplicata rotunda (Winchell and Schuchert). 



Anastrophia? hemiplicata var. rotunda Winchell and Schuchert, Minnesota 



Geol. Surv., 3, 1893, p. 383, pi. 30, figs. 32-35. 

 Trenton (Prosser): Cannon Falls, Minnesota; Decorah, Iowa. 



Parastrophia latiplicata Hall and Clarke. 



Parastrophia latiplicata Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 222, 

 368, pi. 63, figs. 23-27; 48th Rep. New York State Mus., 2, for 1895, 1897, 

 p. 365, pi. 10, figs. 6-10; 14th Rep. State Geol. New York; for 1894, 1897, p. 

 365, pi. 10, figs. 6-10. 

 Niagaran (Racine): Milwaukee, Wisconsin. 



Parastrophia lenticularis (Billings). 



Camarella lenticularis Billings, Cat. Sil. Foss. Anticosti, 1866, p. 45. 

 Richmond (English Head, Charleton): Gamachian and Anticostian (Becsie River) ; 

 Reef Point, etc., Anticosti. 



Parastrophia multiplicata Hall and Clarke. 



Parastrophia multiplicata Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 

 222, 367, pi. 63, figs. 15, 16, 21; 48th Rep. New York State Mus., 2, for 1895, 

 1897, p. 365, pi. 10, figs. 15-17; 14th Rep. State Geol. New York for 1894, 1897, 

 p. 365, pi. 10, figs. 15-17. 



Niagaran (Racine?): Milwaukee, Wisconsin. 



Parastrophia(?) obscura (Hall and Whitfield). 



Porambonites obscurus Hall and Whitfield, King's U. S. Geol. Expl., 40th Parl., 

 4, 1877, p. 234, pi. 1, fig. 16. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, 

 p. 228. 



