LAMELLIBEANCHIATA. 



183 



custa, (a misprint) see Eumicrotls curta. 

 damnoniensis, Soworby, as identified in 



the early N. Y. Reports, see Pteronites 



chemungensis. 

 decmsata, Hall, 1843, see Pteronites de- 



cussatus. Not Munster, 1834. 

 demissa, Conrad, 1842, Jour. Acad. Nat. 



Soi., vol. 8, Hud. Riv. Gr. [Sig. hang- 

 ing down.] 

 desquamata, see Obolella desquamata. 

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



Trenton Gr. [Sig. elliptical.] 

 emacerata, Conrad, 1842, Jour. Acad. Nat. 



Sci., Clinton & Niagara (_Tr. [Sig. 



made thin.] 

 erecta, see Aotiiiodesma erecta. 

 ferruginea, Conrad, 1848, Proc. Acad. Nat. 



Sci., vol. 3, Up. Sil. [Sig. rusty.] 

 Jiabella, see Pterinea flabellum. 

 fragilis, see Aviculopecten fragilis. The 



name was preoccupied by DeFrance. 

 gebhardi, Conrad, 1841, Ann. Rep. N. Y., 



Oriskany sandstone. [Ety. proper 



name.] 

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



Trenton Gr. [Ety. mythological 



name.] 

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



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

 insueta, Emmons, 1842, Geo. Re;). N. Y., 



Hud. Riv. and Cin'ti Gr. [Sig. un- 

 usual.] 

 fceOTs, see Pteronites Isevis. 

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



N. Y., Clinton Gr. [Ety. leptos, slen- 

 der ; notos, back.] 

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



Coralline limestone. [Sig. resembling 



the genus Lima.~i 

 longa, Geinitz, 1866, (Gervillia longa) 



Carb. und Dyas in Neb., Coal Meas. 



[Sig. long.] 

 hngispina, see Pterinea longispina. 

 /J . magna. Swallow, 1863, Trans. St. Louis 



Acad. Sci., Low. Carb. [Sig. large.] 

 manticula, Conrad, 1842, Jour. Acad. Nat 



Sci., vol. 8, Low. Held. Gr. [Sig. a 



little wallet.] 

 morganensis, Meek & AVorthen, 1866, 



(Pterinea morganensis) Proc. Acad. 



Nat. Sci., Coal Meas. [Ety. proper 



name.] 

 multilineata, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, Chemung Gr. [Sig. 



many-lined.] 

 muricata, see Pteronites muricatus. 

 naviformis, Conrad, 1842, Jour. Acad. 



Nat. Sci., Low. Held. Gr. [Sig. boat- 

 shaped.] 

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



Low. Held. Gr. [Sig. oblique, slant- 

 ing-] 

 oblonga, see Aviculopecten oblongus. 

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



Low. Held. Gr. [Sig. obscure.] 

 orbicularis, Stevens, 1858, Am. Jour. Sci., 



vol, 25, 2d ser.,Coal Meas. The name 



was preoccupied by Sowerby in 1839. 



orbiculata, Hall, 1843, see Lyriopecten or- 



biculatns. 

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



Niagara Gr. [Sig. orbicular.] 

 pariJh, see Aviculopecten parilis. 

 pauciradiata. Hall, 1859, Pal. N. Y., vol. 



3, Low. Held. Gr. [Sig. few-rayed.] 

 pectiniformis, see Aviculopecten pectini- 



formis. 

 perobliqua, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, Ham. Gr. [Sig. very 



oblique.] 

 pleuroptera, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, Ham. Gr. [Sig. side- 

 winged.] 

 proterta, see Pterinea protexta. 

 quadrnla, see Pterinea quaclrula. 

 recfahi.lerarm, see Aviculopecten rectila- 



terarius. 

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



Oriskany sandstone. [Sig. having 



straight costK.] 

 rhomboidea, Hall, 1852, Pal. N. Y., vol. 



2, Clinton Gr. [Sig. lozenge-shaped.] 

 rugosa, (Conrad, 1841, Ann. Geo. Rep. N. 



Y., Water Lime Gr. The name was 



preoccupied by Munster in 1826. 

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



Low. Pleld. Gr. [Ety. proper name.] 

 securiformis. Hall, 1852, Pal. N. Y., vol. 



2, Coralline limestone. [Sig. axe- 

 shaped.] 



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



This name was preoccupied, 

 semielliptica, Shumard, 1858, Trans. St. 



Louis Acad. Sci., Up. Coal Meas. 



[Sig. half-elliptical.] 

 shawneensis, Shumard, 1858, Trans. St. 



Louis Acad. Sci., Up. Coal Meas. 



[Ety. proper name.] 

 shumardi, see Entolium shumardi. 

 sigiiata, see Aviculopecten signatus. 

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



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

 apinigera, see Pteronites spinigerus. 

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



Low. Held. Gr. [Sig. bearing spines.] 

 sub^quilatera. Hall, 1859, Pal. N. Y., vol. 



3, Low. Held. Gr. [Sig. somewhat 

 equal-sided.] 



subfalcata, Conrad, 18 4 2, Jour. Acad. 

 Nat. Sci., vol. 8, Ham. Gr. [Sig. 

 somewhat sickle-shaped.] 



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

 Niagara Gr. [Sig. somewhat flat.] 

 --subquadrans, Conrad, 1842, Jour. Acad. 

 Nat. Sci., vol. 8,-ep7-TSil. [Sig. some- 

 what squared.] 



mbrrcin, Conrad, 1841, Ann. Rep. N. Y., 

 Corralline limestone. See Pterinea 

 subrecta, 



subrecia, Hall, 1852. See Aviculopecten 

 subrecta. 



sulcata, Geinitz, 1866, (Gervillia sulcata) 

 Carb. und Dyas in Neb., Coal Meas. 

 If this form is properly referred to the 

 genus Avicula, then the name was 

 preoccupied by Reuss in 1843. 



