BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 629 



Holopea obliqua Continued. 



Holopea cf. obliqua Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 74, pi. 



3, fig. 5. 

 Turbo obliquus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 158, pi. 5, fig. 8; Man. 



Geol., 1860, p. 98, fig. 87. 



Trenton: Middleville and Watertown, New York. 

 ?St. Peter sandstone; Minnesota. 



[olopea obscura (Hall). 



Turbo? obscura Hall, Pal. New York, 1, 1847, p. 12, pi. 3, fig. 8 (sup. 315). 

 Holopea obscura Clarke and Ruedemann, Bull. New York State Mus., 65, 1903, 



p. 537 (gen. ref.). 

 Canadian (Beekmantown) : Fort Plain, New York. 



Holopea obsoleta (Hall). 



Cyclonema? obsoleta Hall, Pal. New York, 2, 1852, p. 90, pi. 28, figs. 3a, b. 

 Holopea obsoleta Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 348 (gen. ref.). 

 Lower Clinton: Medina and Lockport, New York. 



Holopea obsoleta elevata Foerste. 



Holopea obsoleta var. elevata Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, 



p. 290, pi. 6, fig. 17. 

 Clinton: Cumberland Gap, Tennessee. 



Holopea? occldentalls Nicholson. 



t Holopea? occidentalis Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 85, fig.; 

 Quart. Jour. Geol. Soc. London, 31, 1875, p. 550, 551, fig. Whiteaves, Pal. 

 Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 95. 

 Niagaran (Guelph): Elora, Ontario. 



Holopea ophelia Billings. 



Holopea Ophelia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 222, fig. 204. 

 Chazyan.(Quebec-L): Point Rich, Newfoundland. 



Holopea ovalls Billings. 



Holopea ovalis Billings, Canadian Nat. Geol., 4, 1859, p. 351, fig. 2. 

 Canadian (Beekmantown): Second Concession of Godmanchester, Canada. 



Holopea oxfordensis Ulrich. 



Holopea oxfordensis Ulrich, Geol. Minnesota, 3, 1897, pt. 2, p. 1068. 

 Richmond (Whitewater): Oxford, Ohio. 

 Cotypes.Czt. Nos. 45843, 45844, U.S.N.M. 



Holopea paludinlformis Hall. 



Holopea paludiniformis Hall, Pal. New York, 1, 1847, p. 171, pi. 37, figs. 3a, 3b. 

 Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 3, fig. 2. 

 Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 284, figs. Sardeson, 

 Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 75. Ulrich and Scofield, Geol. 

 Minnesota, 3, pt. 2, 1897, p. 1067. Ruedemann, Bull. New York State Mus., 

 49, 1901, p. 35. 



Turbo americanus D'Orbigny, Prodr. de Pal., 1, 1849, p. 6. Emmons, Amer. 

 Geology, 1, pt. 2, 1855, p. 158, pi. 6, fig. 20. 



Trenton: Watertown, New York; near Cannon Falls, Minnesota (Prosser). 



?St. Peter sandstone; Minnesota. 



