LAMELLIBRANCHIATA. 



193 



Ledci, Schumacher, 1817, svn. for Nuculana. 

 barrui, see Palseoneilo narrisi. 

 bellistrinta, see Nuculana bellistriata. 

 hrevirostrid, see Nuculana brevirostris. 

 curta, see Nuculana curta. 

 dens-mamillata, see Nuculana dens-niam- 



illata. 

 gibbosa, see Yoldia gibbosa. 

 knoxensis, see Yoldia knoxensis. 

 levistriata, see Yoldia levistriata. 

 miculiformis, see Nuculana nuculiformis. 

 oweni, see Yoldia oweni. 

 pandoriformis, see Nuculana pandori- 



forniis. 

 jiolita, see Nuculana polita. 

 rusJiensis, see Yoldia rushensis. 

 saccata, see Nuculana saccata. 

 mbscifMla, see Yoldia subscitula. 

 Lkiopteris, Hall, 1877, Pal. N. Y., vol. 5. 



[Ety. leios, smooth ; pteron, a wing.] A 



proposed genus in the family Aviculidx. 

 Leptodomus, McCoy, 1844, Synopsis Carb. 



Foss. Ireland. [Ety. lej)tos, slender; 



domns, house.] 

 arata, Hall, 1860, Can. Nat. & Geo., vol. 



5, Silurian. [Sig. furrowed.] 

 canadensis, Billings, 1874, Pal. Foss., vol. 



2, Devonian. [Ety. proper name.] 

 clavata. Winch ell, 1862, Proc. Acad. Nat. 



Sci., Portage Gr. [Sig. club-shaped.] 

 granosus, see Allorisma granosum. 

 topekaensis, see Sedgwickia topekaensis. 

 Lima, Brugueire, 1791, Encycl. Meth. and 



Deshayes, 1824, Descrip. de Coquilles 



fossiles des environs de Paris. [Ety. 



lima, a file.] 

 glabra, see Pernopecten glaber. 

 macrojjtera, see Limoptera macroptera. 

 obsoleta, see Pernopecten obsoletus. 

 retifera, Shumard, 1858, Trans. St. Louis 



Acad. Sci., Coal Meas. [Sig. net- 

 bearing.] 

 rugxstriata, see Aviculopecten rugsestri- 



atus. 

 Limoptera, Hall, 1870, Prelim. Notice Lam. 



shells. Up. Held. Gr. [Ety. lAma, a 



genus of shells ; pf£ron, a wing.] 

 cancellata, Hall, 1870, Prelim. Notice Lam. 



shells,Up. Held. Gr. [Sig. cancellated.] 

 curvata, Hall, 1870, Prelim. Notice Lam. 



shells, Ham. Gr. [Sig. curved.] 

 macroptera, Conrad, 1838, (Lima macrop- 

 tera) Ann. Rep. N. Y., Ham. Gr. [Sig. 



long- winged.] 

 obsoleta, Hall, 1870, Prelim, Notice Lam. 



shells. Ham. Gr. [Sig. obsolete.] 

 pauperata, Hall, 1870, Prelim. Notice 



Lam. shells,Up. Held. Gr. [Sig. poor.] 

 triquetra, Conrad, Ham. Gr. [Sig. a 



triangle.] 

 LiTHOPHAGA, Lamarck, 1812, Hist. An. sans 



Vert. [Ety. litJios, stone; phago, I eat.] 

 lingualis, Phillips, 1836, (Modiola lin- 



gualis) Geol. Yorkshire, vol. 2, Keo- 

 kuk Gr. [Sig. tongue-like.] 

 pertenuis, Meek & Worthen, 1865, Proc. 



Acad. Nat. Sci. Phil., St. Louis Gr. 



[Sig. very slender.] 



LuciNA, Bruguiere, 1792, Encyclop. Meth. 



[Ety. mythological name.] 

 elliptica, see Paracyclas elliptica. 

 elliptica var. ocddentalis, see Paracyclas 



elliptica var. occidentalis. 

 hamiltonensis, Winchell, 1866, Rep. Low. 



Peninsula Mich,, Ham. Gr. [Ety. 



proper name.] 

 lirata, see Paracyclas lirata. 

 occidentals, Billings, 1859, Assiniboine & 



Saskatchewan Ex. P2xped., Devonian. 



This name was preoccupied by Con- 

 rad for an Eocene species. 

 ohioensis, see Paracyclas ohioensis. 

 retusa. Hall, 1843, Geo. Rep. 4th Dist. 



N. Y., Portage Gr. [Sig. blunt.] 

 LuNULACARDiuM, Muuster, 1840, Beitrage 



zur Petrefaktenkunde. [Ety. lumd^i, 



a little moon; Cardium, a genus of 



shells.] 

 acutirostrum, Hall, 1843, (Pinnopsis acu- 



tirostra) Geo. Rep. 4th Dist. N. Y., 



Portage Gr. [Sig. acute-beaked.] 

 curtum, Hall, 1870, Prelim. Notice Lam. 



shells. Up. Held. Gr. [Sig. short.] 

 fragilis. Hall, 1877, Pal. N. Y., vol. 5, 



Ham. Gr. [Sig. frail.] 

 marcellense, Vanuxem, 1843, (Cypricar- 



dites marcellensis) Geo. Rep. 3rd Dist. 



N. Y., Marcellus shale. [Ety. proper 



name.] 

 ornatum, Hall, 1843, (Pinnopsis ornata) 



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



[Sig. adorned.] 

 Lyonsia, Turton, 1822. Not found in palseo" 



«oic rocks. 

 concava, see Sedgwickia concava. 

 Lyriopecten, Hall, 1877, Pal. N. Y., vol. 5. 



[Ety. lyrion, a lyre ; Pecten, a genus of 



shells.] 

 anomiseformis. Hall, 1877, Pal. N. Y., vol. 



5, Up. Held. Gr. [Sig. like a shell of 



the genus Arwmia.'] 

 macrodonta. Hall, 1877, Pal. N. Y., vol- 



5, Up. Held. Gr. [Sig. from the large 



teeth-like ridges.] 

 orbiculatus. Hall, 1843, (Avicula orbicu- 



lata) Geo. Rep. 4th Dist. N. Y., Ham. 



Gr. [Sig. orbicular.] 

 parallelodonta, Hall, 1877, Pal. N. Y., 



vol. 5, Up. Held. Gr. [Sig. from the 



broad straight hinge line.] 

 Lyrodesma, Conrad, 1841, Ann. Geo. Rep. 



N. Y. [Ety. lyra, a harp; desma, a 



ligament.] 

 cincinnatiense, Hall, 18 71, Pamphlet, 



Cin'ti Gr. [Ety. proper name.] 

 planum, Conrad, 1841, Ann. Geo. Rep., 



Hud. Riv. Gr. [Ety. planus, flat.] 

 poststriatum, Emmons, 1842, (Nuculana 



poststriata) Geo. Rep. N. Y., Black 



Riv. Gr. [Ety. striated posteriorly.] 

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



Hud. Riv. Gr. [Ety. pulcheUm, beau- 

 tiful.] 



