150 



GASTEROPODA. 



lichas, Hall, 1861, (Platyostoma lichas) 



14th Reg. Rep. N. Y., Up. Held. Gr. 



[Ety. mythological name,] 

 Lilturina, Ferussac, 18 21, Tab. Syst. An. 



MoUusques, etc. 

 (iniiijua, see Holopea antiqua. 

 c(i ucdlala, see Cyclonen)a cancellatum. 

 irlieekri, see Naticopsis wheeleri. 

 LoxONEMA, Phillips, 1811, Pal. Foss. [Ety. 



loxos, oblique; nema, a thread.] 

 aculeatum, Billings, 1866, Oatal. Sil. Foss. 



Antic, Anticosti Gr. [Sig. sharp- 

 pointed.] 

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

 boniferous. [Sig. somewhat sharp- 

 pointed.] 

 attenuatum, Hall, 1859, Pal. N. Y., vol. .'!, 



Low. Held. Gr. [Sig. attenuated.] 

 bellatula, see Isonema bellatula. 

 bellona, Hall, 1876, lllust. Devonian Foss., 



Ham. Gr. [Ety. jjroper name.] 

 boydi, see Murchisonia boydi. 

 carinatum, Stevens, 18.58, Am. Jour. Sci., 



2d series, vol. 25, Coal Meas. [.Si;4. 



keeled.] 

 cerithiforme. Meek & AVorthen, 18G0, 



Proc. Acad. Nat. Sci., Coal Mras. 



[Sig. like a shell of the genus Cn-ltli- 



lum.1 

 coaptum. Hall, 1876,Illust.DevonianFoss., 



Ham. Gr. [Sig. closely-joined.] 

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



Low. Held. Gr. [Sig. compact] 

 danvillense, Stevens, 1858, Am. Jour. 



Sci., \o\. 25, Coal Meas. [Ety. proper 



name.] 

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



Ham. Gr. [Ety. mythological name.] 

 fasciatum. King, 1850, Permian Foss., 



Permian Gr. [Sig. banded.] 

 fitchi, Hall, 1859, Pal. N. Y., vol. 3, Low. 



Held. Gr. [Ety. proper name.] 

 halli, Norwood & Pratten, 1855, Jour. 



Acad. Nat. Sci., 2d series, vol. 3, Coal 



Meas. [Ety. proper name.] 

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



Ham. Gr. [Ety. proper name.] 

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



Ham. Gr. [Ety. from the hydraulic 



limestone.] 

 inornata, see Polyphemopsis inornata. 

 leda. Hall, 1868, 20th Reg. Rep. N. Y., 



Niagara Gr. [Ety. mythological name.] 

 minutum, Stevens, 1858, Am. Jour. Sii., 



2d series, vol. 2.5, Coal Meas. [Sig. 



minute.] 

 nmlticostatum. Meek & A\'orthen, 1861, 



Proc. Acad. Nat. Sci., Coal Aleas. [Sig. 



many-ribbed.] 

 murrayanum, Salter, 1859,Can.Org.Rem., 



Decade 1, Black Riv. GrI [Ety. proper 



name.] 

 newberryi, see Macrocheilus newberryi. 

 nexile, Phillips, 1841, Pal. Foss., Ham. 



Gr. [Sig. interlaced.] American 



species. (?) 

 nitidula, see Polyphemopsis nitidula. 



nodosum, Stevens, 1858, Am. Jour. Sci., 2d 



ser., vol. 25, Coal Meas. [Sig. knotted.] 

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



Low. Held Gr. [Sig. obtuse.] 

 oligospiratum, AVinchell, 1863, Proc.Acad. 



Nat. Sci., Chemung Gr. [Sig. having 



few whorls.] 

 pexatum. Hall, 1861, 14th Reg. Rep., Up. 



Held Gr. [Sig. clothed in a shell with 



a nap on it.] 

 pexatum mr. obsoletum, Hill,1876,Illu8t. 



Devonian Foss., Up. Held. Gr. [Sig. 



obsolete,] 

 planogyratiim, Hall, 1839, Pal. N. Y., vol.3, 



Low. Held. Gr. [Sig. flattened whorl ; 



from the flattening of the upper side 



of the last -rolution.] 

 politum, 8teve#, 1858, Am. Jour. Sci., 2d 



series, vol. 25, Coal Meas. [Sig. 



smoothed.] 

 regulare, Cox, 18.J7, Geo. Sur. Ky., vol. 3, 



Coal Meas. [Sig. regular.] 

 robustum. Hall, LSfii', 15th Reg. Rep., Scho- 

 harie grit. [Sig. robust] 

 rugosum, Aleek & Worthen, 1860, Proc. 



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



wrinkled.] 

 scitula, Jleek & Worthen, 1860, Proc. 



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



neat, prett}'.] 

 semicostatum, ifeek, 1871, Proc. Aca. Nat. 



Sci., Coal Meas. [Sig. half-ribbed.] 

 solidum. Hall, 1862, 15th Reg. Rep., Scho- 

 harie grit. [Sig. solid.] 

 styliola, Hall, 1876, lllust. Devon. Foss., 



Chemung Gr. [Sig. a truncated 



column.] 

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



Schoharie grit. [Sig. somewhat atten- 

 uated.] 

 Kiibulaia, see Murchisonia subulata. 

 tenuicarinatum, Stevens, 1858, Am. Jour. 



Sci., 2nd series, vol. 25, Coal Meas. 



[sig. line-lined.] 

 terelira. Hall, 1876, lllust. Devon. Foss., 



Chemung Gr. [Sig. an auger.] 

 teres, Hall, 1876, lllust Devonian Foss., 



Corniferous Gr. [Sig. well-rounded.] 

 turritiformie. Hall, 1860, 13th Reg. Rep. 



N. Y., Ham. Gr. [Sig. tower-like.] 

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



4, Warsaw Gr. [Sig. girded.] 

 yandellanum, Hall, 1858, Trans. Alb. Inst. 



vol. 4, Warsaw Gr. [Ety. proper name.] 

 Maclot!e.\, LeSueur, 1818,(Maclurites) Jour. 



Acad. Nat. Sci., vol. 1. [Ety. proper 



name.] 

 acuminata, Billings, 1865, Pal. Foss., vol. 



1, Quebec Gr. [Sig. pointed.] 

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



Quebec. Gr. [Sig. near to.] 

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



vol. 4, Chazy Gr. [Ety. proper name.] 

 bigsbyi, Hall, 1861, Geo. Rep. Wis., Tren- 

 ton Gr. [Ety. proper name.] 

 crenulata, Billings, 1865, Pal. Fobs., vol. 



1, Quebec Gr. [Sig. crenulated.] 



