GASTEROPODA. 



145 



percarinatus, Conrad, 1842, Jour. Acad. 

 Nat. Sci., vol. 8, Coal Meas. [Sig.very 

 strongly keeled.] 

 perfomtus, syn. for Tremanotus alpheus. 

 perlatus, Conrad, 1842, Jour. Acad. Nat. 

 Sci., vol. 8, Coal Meas. [Sig. very 

 wide.] 

 platystoma. Meek & Worthen, 1868, Geo. 

 Sur. 111., vol. 3, Galena Gr. [Sig. 

 broad-mouthed.] 

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



Devonian. [Sig. full, large.] 

 profundus, Emmons, Geo. Rep. N. Y 



Trenton Gr. [Sig. deep.] 

 propinquus. Meek, 1871, Proc. Acad. Nat. 

 Sci., Oornif. Gr. [Ety. from close re- 

 semblance to B. newhcvryi.'] 

 punctifrons, Emmons, 1842, Geo. Rep. 

 N. Y., Black Riv. & Trenton Gr. [Sig. 

 dotted in front.] 

 rudis. Hall, 1862, 15tli Reg. Rep., Ham. 



Gr. [Sig. rude, rough.] 

 rugosiusculus, Winchell, 1862, Proc. Acad. 

 Nat. Sci., Marshall Gr. [Sig. covered 

 with small wrinkles.] 

 Bcriptiferus, White, 1862, Proc. Bost. Soc. 

 Nat. Hist, vol. 9, Chemung Gr. [Ety. 

 scriptum, writing ; /ero, to carry. ] 

 scissile, Conrad, 1846, Proc. Acad. Nat. 



Sci., vol. 2, Carb. [Sig. cleft, rent.] 

 solitarius, BilUngs, 1866, Catal. Sil. Foss. 

 Antic, Hud. Riv. Gr. [Sig. alone, 

 solitary.] 

 stamineus, Conrad, 1842, Jour. Acad. Nat. 

 Sci., vol. 8, Low. Carb. [Sig. thready.] 

 stevensanus, McChesney, 1860, Desc. 

 New Pal. Foss., Coal Meas. [Ety. 

 proper name.] 

 striatus (?), Sowerby, 1839, Murch. Sil. 

 Syst., Portage Gr. The name was 

 preoccupied by D'Orbigny. 

 sublsevis. Hall, 1856, Trans. Alb. Inst., 

 vol. 4, Warsaw Gr. [Sig. somewhat 

 smooth.] 

 sulcatinus, see Bucania sulcatina. 

 thalia. Hall, 1862, 15th Reg. Rep., Ham. 



Gr. [Ety. mythological name.] 

 tricarinatus, Shumard, 1858, Trans. St. 

 Louis Acad. Sci., Coal Meas. [Sig. 

 three-keeled.] 

 tricarinata, Hall, 1876, lUust. Devonian 

 Foss., Chemung Gr. The name was 

 preoccupied, 

 troosti, Safford, 1869, Geo. Rep. Tenn., 

 Nashville Gr. [Ety. proper name.] 

 This name was preoccupied by D'Or- 

 bigny in 1839. 

 tuber. Hall, 1876, 28th Reg. Rep., Niag- 

 ara Gr. [Sig. a bump or knob.] 

 urei, Fleming, 1828, British Animals, De- 

 vonian. [Ety. proper name.] Amer- 

 ican species. (?) 

 vittatm, syn. for B. carbonarius. 

 volutus, "Eaton, 1832, Geol. Text-book, 



Up. Sil. [Sig. whorled.] 

 whittleseyi, Winchell, 1865, Proc. Acad. 

 Nat. Sci., Cuyahoga shale. [Ety. 

 proper name.] 



Am. 



[Sig. 



19 



BuoANELLA nana, Meek, 1870, Proc. 

 Phil. Soc, vol. 11, Silurian, 

 dwarfish.] 

 Bucania, Hall, 1847, Pal. N. Y., vol. 1. [Ety. 

 hukaiie, a trumpet.] 

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

 Niagara & Guelph Gr. [Sig. narrowed 

 or constricted.] 

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

 Clinton Gr. [Sig. beautifully dotted.] 

 bidorsata, Hall, 1847, (Bellerophon bidor- 

 satus) Pal. N. Y., vol. 1, Trenton Gr. 

 [Sig. having a double back.] 

 chicagoensis, McChesney, 1860, New Pal. 

 Foss., Niagara Gr. [Ety. proper 

 name.] 

 costata, James, 1872, (Cyrtolites costatus) 

 Am. Jour. Sci., 3rd ser., vol. 3, Cin'ti 

 Gr. [Sig. ribbed, having prominent 

 ridges.] 

 crassolaris, McChesney, 1861, New Pal. 

 Foss., Niagara Gr. [Ety. crasms, 

 thick.] 

 devonica. Hall, 1872, 24th Reg. Rep., 

 Low. Held. Gr. [Ety. proper name.] 

 expansa, Hall, 1847, (Bellerophon ex- 

 pansus) Pal. N. Y., vol. 1, Trenton 

 Gr. [Sig. widely-spread.] 

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



Trenton Gr. [Sig. plaited, woven.] 

 lirata. Hall, 1862, Geo. Rep. Wis., Tren- 

 ton Gr. [Sig. furrowed.] 

 pervoluta, McChesney, 1861, New Pal. 

 Foss., Niagara Gr. [Sig. very much 

 rolled.] 

 profunda, Conrad, 1841, Ann. Rep. N. 

 Y., (Euomphalus profundus) Low. 

 Held. Gr. [Sig. deep.] 

 profunda, Hall, 1859, Pal. N. Y., vol. 3, 

 Low. Held. Gr. This name was pre- 

 occupied, 

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

 1, Trenton Gr. [Sig. dotted in front.] 

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



Chazy Gr. [Sig. rounded.] 

 rugosa, Emmons, 1856, Am. Geol., Utica 



Gr. [Sig. rugose.] 

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



Clinton Gr. [Sig. full of marks.] 

 sulcatina, Emmons, 1842, (Bellerophon 

 sulcatinus) Pal. N. Y., vol. 1, Chazy, 

 Black Riv. & Trenton Gr. [Sig. 

 small-furrowed. ] 

 trilobata, Conrad, 1838, (Planorbis tri- 

 lobatus) Ann. Rep. N. Y., Medina 

 sandstone & Clinton Gr. [Sig. three- 

 lobed.] 

 Bulimella, Hall, 1858, Trans. Alb. Inst., vol. 

 4. [Ety. a small Bvlimm.'] This name 

 was preoccupied by Pfeiffer in 1852. 

 bulimiformis, see Polyphemopsis bulimi- 



formis. 

 canaliculata, see Polyphemopsis canali- 



culata. 

 dongata, see Polyphemopsis elongata. 



