152 



GASTEROPODA. 



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



Calcif. Gr. [Ety. mythological name.] 

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



Quebec Gr. [Ety. mythological name.] 

 quebecensis, Billings, 186."), Pal. Foss., 



vol. ], <iuebec Gr. [Ety. proper 



name.] 

 rugosa. Hall, LS-17, Pal. N. Y., vol. 1, Hud. 



Eiv. Gr. [Sig. wrinkled.] 

 simplex, Billings, 1865, Pal. Fo.ss., vol. 1, 



C'alcif. Gr. [Sig. simple.] 

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



Black Riv. Gr. [Sig. magnificent.] 

 trentonensis, Bilhngs, 1862, Pal. Foss., 



vol. 1, Trenton Gr. [Ety. proper 



name.] 

 undata, Winch ell, 1865, Proc. Acad. Nat. 



Sci. Phil., Kinderhook Gr. [Sig. 



wavv.] 

 umbella. Meek & Worthen, 1866, Proc. 



Acad. Nat. Sci. Phil., Burlington Gr. 



[Sig. umbrella-like.] 

 venilla, Billings, 1862, Pal. Foss., vol. ], 



Quebec Gr. [Ety. mythological name.] 

 MiCKOCERAs, Hall, 1S45, Am. ,Tour. Sci., vol. 



48. [Ety. mikros, small; Icrrai^, horn.] 

 inornatus. Hall, 1845, Am. .Jour. Sci., vol. 



48, Cin'ti Gr. [Sig. not adorned, 



smooth.] 

 MicRODOM.x, Meek & "Worthen, 1.S66, Proc. 



Acad. Nat. Sci. [Ety. mikros, small ; 



dfjmus, house.] 

 conica, Meek & Worthen, 1866, Proc. 



Acad. Nat. Sci. Phil., Low. Coal Meas. 



[Sig. conical.] 

 JIuRCHisoNiA, D'Archiac & Verneuil, 1841, 



Bull. Soc. Geo. Fr., vol. 12. [Ety. 



proper name.] 

 abbrei'iata, Hall, 1847, Pal. N. Y., vol. 1, 



Chazy Gr. The name was preoccu- 

 pied by Koninck in 1841. 

 aciculata,"Hall, 1860, Can. Nat. & Geo., 



vol. 5, Silurian. [Sig. needle-pointed.] 

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



Quebec Gr. [Ety. proper name.] 

 ada, Billings, 1865, Pal. Foss., vol. 1, Cal- 



ciferous Gr. [Ety. proper name.] 

 adelina, "Billings, 1865, Pal. Foss., vol. 1, 



Queliec Gr. [l^ty. proper name.] 

 agilis, Billings, l.S(i5, Pal. Foss., vol. 1, 



Quebec Gr. [i^iii. from the depths.] 

 alexandra, Billings, 1S65, Pal. Foss., vol. 



1, Black Riv. Gr. [Ety. proper name.] 

 angulata, Phillips, 18o(i, (Rostellaria an- 



gulata) Geol. of Yorkshire, Devonian. 



[Sig. angulatecl.] A'ery doubtfully 



identified in America, 

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



Bird.seye Gr. [Sig. narrowed.] 

 anna, Pillings, 1859, Can. Nat. & Geol., 



V(j1. 4, Calciferous Cr. [Ety. St. Annis 



in Canada.] 

 archimedea, McChesney, 1861, Desc. 



New Pal. Foss., Coal Meas. [Sig. per- 

 taining to the machine invented by 



Archimedes.] 

 arenaria, Billing,s, 18.59, Can. Nat. & Geo., 

 vol, 4, Calciferous Gr. [Sig. sandy.] 



arisaigensis. Hall, 1860, Can. Nat. & Geo., 

 vol. 5, Silurian. [Ety. proper name.] 



artemisia, Billings, 1865, Pal. Foss., vol. 

 1, Calciferous Gr. [Ety. proper name.] 



aspera, Billings, 1859, Can. Nat. & Geo., 

 vol.4, Chazy Gr. [Sig. rough.] 



attenuata. Hall, 1858, Trans. Alb. Inst., 

 vol. 4, War.saw Gr. [Sig. drawn out, 

 attenuated.] 



augustina, Billings, 1865, Pal. Foss., vol. 

 1, Quebec Gr. [Etv. proper name.] 



bellicincta. Hall, 1847,'Pal. N. Y., vol. 1, 

 Trenton & Hud. Riv. Gr. [Sig. beau- 

 tifully banded.] 



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

 Trenton & Hud. Riv. Gr. [Sig. double- 

 banded.] This name was preoccupied 

 by McCoy in 1844. 



bilirata. Hall, 1S59, Pal. N. Y., vol. 3, 

 Low. Held. Gr. [Sig. double-fur- 

 rowed.] 



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

 Guelph Gr, [Sig. double-banded.] 



bowdeni, Safi'ord, 1869, Geo. of Tenn., 

 Nashville Gr. [Ety. proper name.] 



boydi. Hall, 18 43, (Loxonema boydi) 

 Geo. Rep. 4th Dist. N. Y., Guelph Gr. 

 [Ety. proper name.] 



bo5dii, Nicholson, 1875, Quar. Jour. Geo. 

 Soc. Lond., vol. 31, Guelph Gr. [Ety. 

 proper name.] 



carinifera, Shumard, 1863, Trans. St. Louis 

 Acad. Sci., Calciferous Gr. [Sig. keel- 

 loearing.] 



cassandra, Billings, 1865, Pal. Foss., vol. 

 1, Quebec Gr. [Ety. mythological 

 name.] 



catherina, Billings, 1865, Pal. Foss., vol. 

 1, Quebec Gr. [Ety. proper name.] 



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

 Quebec Gr. [Ety. proper name.] 



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

 Medina Gr. [Sig. somewhat conical.] 



conradi, Hall, 1S67, 20th Reg. Rep., Ni- 

 agara Gr. [Ety. proper name.] 



desiderata. Hall, 1862, 15th Reg. Rep., 

 Up. Held. Gr. [Sig. desired.] 



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

 Up. Held. Gr. [Sig. excellent.] 



elegantula. Hall, 1858, Trans. Alb. Inst., 

 vol. 4, Warsaw Gr, [Sig. quite elegant.] 



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

 Guelph Gr. [Ety. proper name.] 



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

 Low. Held. Gr. [Sig. thinned-out.] 



funata, Billings, 1866, Catal. Sil. Foss. 

 Antic, Anticosti Gr. [Sig. corded.] 



gigantea, Billings, 1857, Rep. of Progr., 

 31id. Sil. [Sig. unusuallv large.] 



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

 Trenton & Hud. Riv. Gr. [Sig. slen- 

 der.] 



gypsea, Dawson, 1868, Acad. Geol., Car- 

 boniferous. [Sig. gypsum.] 



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

 Devonian. [Ety. mythological name.] 



