LAMELLIBRANCHIATA. 



193 



Leda, Schumacher, 1817, syn. for Nuculana. 

 barrisi, see Palseoneilo barrisi. 

 beUistriala, see Nuculana bellistriate. 

 breinrostris, see Nuculana brevirostris. 

 carta, see Nuculana curta. 

 dens-mamillata, see Nuculana dens-mam- 



illata. 

 gibbom, see Yoldia gibbosa. 

 knoxensis, see Yoldia knoxensis. 

 leristriata, see Yoldia levistriata. 

 nuculiformis, see Nuculana nuculiformis. 

 oweni', see Yoldia oweni. 

 pandoriformis, see Nuculana pandori- 



forinis. 

 polita, see Nuculana polite. 

 rmhmsis, see Yoldia rushensis. 

 toccata, see Nuculana saccate. 

 mbecittda, see Yoldia subscitula. 

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

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

 proposed genus in the family Awculidse. 

 Leptodomus, McCoy, 1844, Synopsis Carb. 

 Foss. Ireland. [Ety. leptos, slender; 

 dornus, house.] 

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



5, Silurian. [Sig. furrowed.] 

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



2, Devonian. [Ety. proper name.] 

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

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

 granosnx, 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. 

 macroptera, see Limoptera macroptera. 

 ofisolcta, see Pernopecten obsoletus. 

 retifera, Shumard, 1858, Trans. St. Louis 

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

 bearing.] 

 rugscstriata, see Aviculopecten rugsestri- 

 atus. 

 Limoptera, Hall, 1870, Prelim. Notice Lam. 

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

 genus of shells ; pteron, a wing.] 

 cancellata, Hall, 1870, Prelim. Notice Lam. 

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

 curvate, 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.] 

 obsolete, Hall, 1870, Prelim. Notice Lam. 



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

 pauperate, Hall, 1870, Prelim. Notice 

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

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

 triangle.] 

 Litiiophaga, 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. occidentals, see Paracyclas 



elliptica var. occidentalis. 

 hamiltonensis, Winchell, 1866, Rep. Low. 



Peninsula Mich., Ham. Gr. [Ety. 



proper name.] 

 liraia, see Paracyclas lirato. 

 occidentalis, Billings, 1859, Assiniboine & 



Saskatchewan Ex. Exped., 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, Munster, 1840, Beitrage 



zur Petrefaktenkunde. [Ety. lunula, 



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 ornate) 



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



[Sig. adorned.] 

 Lyonsia, Turton, 1822. Not found in palaeo- 

 zoic rocks. 

 concava, see Sedgwickia concava. 

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



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



shells.] 

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



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



the genus Anomxa.~\ 

 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.] 

 parallelodonte, 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. pulcheUus, beau- 

 tiful.] 



