LAMELLIBRANCHIATA. 



183 



custa, (a misprint) see Eumicrotis curta. 

 damnoniensis, Sowerby, as identified in 



the early N. Y. Reports, see Pteronites 



chemungensis. 

 decussata, Hall, 1843, see Pteronites de- 



cussatus. Not Minister, 1834. 

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



Sci., 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 Gr. [Sig. 



made thin.] 

 erecta, see Actinodesma erecta. 

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



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

 flabella, see Pterinea flabellum. 

 fragilis, see Aviculopecten fragilis. The 



name was preoccupied bv DeFrance. 



" rdi, 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. Rep. N. Y., 



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

 usual.] 

 1-sevis, see Pteronites leevis. 

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



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

 der; notos, back.] 

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



Coralline limestone. [Sig. resembling 



the genus Lima.] 

 longa, Geinitz, 1866, (Gervillia longa) 



Carb. und Dyas in Neb., Coal Meas. 



[Sig. long.] 

 longispina, see Pterinea longispina. 

 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 & Worthen, 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. 



orbicidata, Hall, 1843, see Lyriopecten or- 

 bicularis. 



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

 Niagara Gr. [Sig. orbicular.] 



parilis, 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.] 



protexta, see Pterinea protexta. 



quadnda, see Pterinea quadruln. 



rectalaterarea, see Aviculopecten rectila- 

 terarius. 



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

 Oriskany sandstone. [Sig. having 

 straight cos tee.] 



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. Held. Gr. [Ety. proper name.] 



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



2, Coralline limestone. [Sig. axe- 

 shaped.] 



securiformis, 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. 

 signata, see Aviculopecten signatus. 

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



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

 spinigera, see Pteronites spinigerus. 

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



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

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



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

 equal-sided.] 



subfalcata, Conrad, 1842, 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, Up. Sil. [Sig. some- 

 what squared.] 



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

 Corralline limestone. See Pterinea 

 subrecta, 



subrecta, 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. 



