396 



GASTEROPODA. 



[AMP. BEL- 



erecta, see Platyceras erectum. 



ovalis, see Platyceras ovale. 



niagarensis, see Platyceras niagarense. 



trigonalis, see Platyceras trigonale. 

 Ampullaria, Lamarck, 1801. Syst. An. sans 

 Vert. [Ety. ampulla, a flask.] Not a 

 Palaeozoic genus. 



helicoides, see Soleniscus helicoides. 



pou-elli, Walcott, 1883, Science, vol. 2, p. 

 808, and Monogr. U. S. Geo. Sur., vol. 

 8, p. 261, Subcarboniferous. 

 ANOMPHALUS, Meek & Worthen, 1866, Proc. 

 Acad. Nat. Sci., p. 268. [Ety. anom- 

 phalos, without an umbilicus.] A heli- 

 coid shell of three or more volutions, 

 and having an aperture transversely 

 suboval. Type A rotulus. 



meeki, see Dawsonella meeki. 



rotulus, Meek & Worthen, 1866, Proc. 

 Acad. Nat. Sci. Phil., p. 268, and Geo. 

 Sur. 111., vol. 5, p. 597, Coal Meas. 

 ANTHRACOPUPA, Whitfield, 1881, Am. Jour. 

 Sci. and Arts, 3d ser., vol. 21, p. 126. 

 [Ety. anthrax, coal ; Pupa, a genus.] 

 Shell minute, pupiform, few volutions, 

 last unsymmetrical ; axis imperf orate; 

 aperture large, nearly vertical; peri- 

 stome thickened, united above by a 

 thin callus, on which may occur one or 

 more palatal teeth; other tooth-like 

 projections on the inner margin of lip ; 

 circular notch, as in Pupina, on inner 

 edge of outer limb, near body whorl ; 

 surface vertically lined. Type A. ohio- 

 ensis. 



ohioensis, Whitfield, 1881, Am. Jour. 

 Sci. and Arts, 3d ser., vol. 21, p. 126, 

 Coal Meas. 



BKLLEROPHON, Montfort, 1808, Conch. Syst., 

 vol. 1, p. 50. [Ety. mythological name.] 

 Shell thick, symmetrical, globose, in- 

 volute ; sinus in the middle of the outer 

 lip, from which a band extends back- 

 ward along the outer surface of the vo- 

 lution ; inner lip thickened, expanded 

 on the inrolled spire. Type B. vasulites. 



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

 Nat. Hist., p. 56, Ham. Gr. 



acutus, Sowerby, 1839, Murch. Sil. Syst., 

 p. 643, Low. Silurian. 



allegoricus, White, 1874, Rep. Invert. 

 FOBS., p. 10, and Geo. Sur. W. 100th 

 Mer., vol. 4, p. 55, Quebec Gr. 



alternodosus, Whitfield, 1882, Ann. N. Y. 

 Acad. Sci., vol. 2, p. 225, Kaskaskia Gr. 



angustata, see Bucania angustata. 



antiquatus, Whitfield, 1878, Ann. Rep. 

 Geo. Sur. Wis., p. 52, and Geo. Wis., 

 vol. 4, p. 176, Potsdam Gr. 



apertus, Sowerby, 1825, Min. Conch., vol. 

 5, p. 108, Subcarboniferous. 



argo, Billings, 1860, Can. Nat. and Geol., 

 vol. 5, p. 167, Black Riv. and Tren- 

 ton Gr. 



auriculatus, Hall, 1852 ; Pal. N. Y., vol. 2, 

 p. 334, Coralline limestone. 



barquensis, Winchell, 1862, Proc. Acad. 

 Nat. Sci., p. 425, Marshall Gr. 



bidorsatw, see Bucania bidorsata. 



bilabiatus, White & Whitfield, 1862, Proc. 



Bost. Soc. Nat. Hist., vol. 8, p. 304, Kin- 



derhook Gr. 

 bilobatus,Sow- 



erby, 1839, / 



Murch. Sil. / 



Syst., p. 643, 



and Pal. N. 



Y., vol. 1, 



p. 184, Black _ __ 



Riv. to Mid. Flo . 6 52.-Bellerophon 



Sil. bilobatus. 



bilobatus var. 



acutus, Hall, 1847, Pal. N. Y., vol. 1, p. 



185, Trenton Gr. 

 bilobatus var corrugatus, Hall, 1847, Pal. 



N. Y., vol. 1, p. 185, Trenton Gr. 

 blaneyanus, syn. for B. carbonarius. 

 bowmani, White, 1876, Proc. Acad. Nat. 



Sci., p. 32, Devonian, 

 brevilineatus, Conrad, 1842, Jour. Acad. 



Nat, Sci., vol. 8, p. 269, and Pal. N. Y., 



vol. 5, p. 2, p. 107, Ham. Gr. 

 canadensis, Billings, 1866, Catal. Sil. Foss. 



Antic., p. 18, Hud. Riv. Gr. 

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



p. 307, Hud. Riv. Gr. 

 cancellatus, Hall, 1858, Trans. Alb. Inst., 



vol. 4. The name was preoccupied. 



See B. textilis. 

 carbonarius, Cox, 1857, Geo. Rep. Ky., 



vol. 3, p. 562, Coal Meas. 

 carbonarius var. subpapillosus, White, 



1876, Geo. Uinta Mountains, p. 92, Up. 



Aubrey Gr. 

 carinatus, Sowerby, 1839, Murch. Sil. 



Syst., p. 634, Devonian, 

 cassinensis, Whitfield, 1886, Bull. Am. 



Mus. Nat. Hist, vol. 1, p. 318, Birds- 

 eye Gr. 

 charon, Billings, 1860, Can. Nat. and Geol. 



vol. 5, p. 169, Black Riv. and Tren- 

 ton Grs. 

 combsi, Wolcott, 1885, Monogr. U. S. Geo. 



Sur., vol. 8, p. 193, Devonian, 

 convolutus, Eaton, 1832, Geo. Text-book, 



p. 28, Up. Sil. 

 crassus, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci., p. 458, and Geo. Sur. 



111., vol. 2, p. 385, Coal Meas. 

 crenistria, Hall, 1876, Illust. Devonian 



Foss., pi. 25, and Pal. N. Y., vol. 5, pt 



2, p. 116, Ham. Gr. 

 curvilineatus, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, p. 269, Onondaga, 



Schoharie and Up. Held. Gr. 

 cyrtolites, Hall, 1860, 13th Rep. N. Y. 



Mus. Nat. Hist., p. 107, Kinder- 

 hook Gr. 

 declivis, Conrad, 1842, Jour. Acad. Nat 



Sci., vol. 8, p. 269, Trenton Gr. 

 disculus, Billings, 1860, Can. Nat. and 



Geo., vol. 5, p. 168, Black Riv. and 



Trenton Gr. 

 ellipticus, McChesney, 1860, Desc. New 



Pal. Foss., p. 58, Coal Meas. 

 txpansw, see Bucania expansa. 

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



pt. 2, p. 109, Chemung Gr. 



