422 



GASTEROPODA. 



parvispira, Winchell, 1862, Rep. Low. 



Peninsula Mich., p. 96, Ham. Gr. 

 pauper, Billings, 1859, Can. Nat. and Geol., 



vol. 4, p. 457, Chazy Gr. 

 pauper, syn. for Trochonema halii. 

 percarinata, see Cyclonema percarinatum. 

 perhumerosa, Meek, 1872, Pal. E. Neb., p. 



232, Coal Meas. 

 perizomata, White, 1882, Rep. Invert. 



FOBS. New Mex., p. xxxi, Coal Meas. 

 perlata, Hall, 1852, Pal. N. Y., vol. 2, p. 



349, Guelph Gr. 

 perornata, Shumard, 1859, Trans. St. 



Louis Acad. Sci., vol. 1 , p. 401, Coal Meas. 

 pervetusta, Conrad, 1838, (Cyclostoma 



pervetusta,) Ann. Rep. N. Y., p. 65, 



Medina sandstone, 

 piasensis, Hall, 1858, Trans. Alb. Inst., 



vol. 4, p. 22, and Bull. Am. Mue. Nat. 



Hist., p. 83, Warsaw Gr. 

 planidorsalis, Hall, 1876, Illust. Devonian 



Foss., pi. 20, and Pal. N. Y., vol. 5, pt. 



2, p. 82, Ham. Gr. 

 plena, Hall, 1876, Illust, Devonian Foss., 



pi. 17, and Pal. N. Y., vol. 5, pt. 2, p. 



66, Ham. Gr. 

 postumia, Billings, 1862, Pal. Foss., vol. 1, 



p. 91, Quebec Gr. 

 poulsoni, Conrad, 1842, Jour. Acad. Nat. 



Sci., vol. 8, p. 270, Onondaga Gr. 

 pratteni, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci., p. 459, and Geo. Sur. 



111., vol. 2, p. 357, Low. Coal Meas. 

 princessa, Billings, 1874, Pal. Foss. vol. 2, 



p. 59, Up. Held. Gr. 

 progne, Billings, 1860, Can. Nat. and 



Geol., vol. 5, p. 163, Black Riv. and 



Trenton Grs. 

 proutana, Shumard, 1859, Trans. St. Louis 



Acad. Sci., vol. 1, p. 401, Coal Meas. 

 quadricarinata, Hall, 1847, Pal. N. Y., vol. 



1, p. 43, Birdseye Gr. 

 quadrilix, Hall, 1879, Pal. N. Y., vol. 5, 



pt. 2, p. 86, Up. Held. Gr. 

 quebecensis, Billings, 1865, Pal. Foss., vol. 



1, p. 190, Quebec Gr. 

 quinquesulcata, Winchell, 1865, Proc. 



Acad. Nat. Sci., p. 131, Marshall Gr. 

 racinensis, Whitfield, 1878, Ann. Rep. 



Geo. Sur. Wis., p. 84, and Geo. Wis., 



vol. 4, p. 296, Niagara Gr. 

 ramsayi, Billings, 1859, Can. Nat. and 



Geol., vol. 4, p. 351, Calciferous Gr. 



FIG. 701. Pleurotomaria ramsayi. 



regulata, Hall, 1860, 13th Rep., p. 108, 



Ham. Gr. 

 riddelli, Shumard, 1860, Trans. St. Louis 



Acad, Sci., vol. 1, p. 625, Coal Meas. 



rota, Winchell, 1863, Proc. Acad. Nat. 



Sci., p. 19, Marshall Gr. 

 rotalia. Hall, 1862, 15th Rep. N. Y. Mus. 



Nat. Hist, p. 46, and Pal. N. Y., vol.5, 



pt. 2, p. 71, Ham. Gr. 

 rotuloicks, see Raphistoma rotuloides. 

 rotunda, Hall, 1843, (Euomphalus (?) ro- 



tundus,) Geo. Rep. 4th Dist. N. Y., p. 



172, and Illust. Devon. Foss., pi. 18, 



Corniferous Gr. 



rotundata, Hall, see P. subglobosa. 

 rotundispira, Billings, 1865, Pal. Foss., vol. 



1, p. 191, Quebec Gr. 

 rugulata, Hall, 1860, 13th Rep. N. Y. Mus. 



Nat. Hist., p. 108, and Pal. N. Y., vol. 



5,'pt. 2, p. 75, Ham. Gr. 

 scitula, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 461, and Geo. 



Sur. 111., vol. 2, p. 353, Low. Coal Meas. 

 selecta, Billings, 1865, Pal. Foss., vol. 1, 



p. 224, Quebec Gr. 

 semele, Hall, 1861, Geo. Rep. Wis., p. 36, 



Hud. Riv. Gr. 

 shumardi, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 462, and Geo. 



Sur. 111., vol. 2, p. 260, Keokuk Gr. 

 sigaretoides, Winchell & Marcy, 1865, 



Bost, Soc. Nat. Hist., vol. 1, p. 98, Ni- 

 agara Gr. 

 sinistrorsa, Swallow, 1858, Trans. St. Louis 



Acad. Sci., vol. 1, p. 203, Coal. Meas. 

 solarioides, Hall, 1852, Pal. N. Y., vol. 2, 



p. 348, Guelph Gr. 

 specioea, Meek & Worthen, 1860, Proc. 



Acad. Nat, Sci. Phil., p. 459, and Geo. 



Sur. 111., vol. 2, p. 352, Low. Coal Meas. 

 sphserulata, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, p. 272, Coal Meas. 

 spironema, Meek & Worthen, 1866, Proc. 



Acad. Nat. Sci. Phil., p. 272, and Geo. 



Sur. 111., vol. 5, p. 601, Coal Meas. 

 sponsa, Billings, 1865, Pal. Foss., vol. 1, 



p. 226, Quebec Gr. 

 Stella, Winchell, 1862, Proc. Acad. Nat, 



Sci., p. 424, Marshall Gr. 

 vubanguZata, see Cyclonema subangulatum. 

 subconica, Hall, 1847, Pal. N. Y., vol. 1, 



p. 174, Black Riv., Trenton, and Hud. 



Riv. Grs. 

 subconstricta, Meek & Worth en, 1860, 



Proc. Acad. Nat. Sci. Phil., p. 458, and 



Geo. Sur. 111., vol. 2, p. 351, Low. Coal 



Meas. 

 subdecussata, Geinitz, 1866, Carb. und 



Dyas in Neb., p. 10, and Pal. E. Neb., 



p. 233, Coal Meas. 

 subdepressa, Hall, 1852, Pal. N. Y., vol. 2, 



p. 333, Coralline limestone, 

 subglobosa, Hall, 1877, 1st Ed. Am. Pal. 



Foss., p. 245, Warsaw Gr. Proposed 



instead of P. rotundata, Hall, 1858, 



which was preoccupied, 

 subscalaris, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 460, and Geo. 



Sur. 111., vol. 2, p. 360, Low. Coal Meas. 

 subsinuata, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 460, and Geo. 



Sur. 111., vol. 2, p. 358, Low. Coal. 



Meas. 



