LAMELLIBRANCHIATA. 



189 



anodontoides, see Modiolopsis anodon- 



toides. 

 anticostiensis, Billings, 1866, (Cyrtodonta 



(?) antirostiensis) Catal. Sil. Foss. 



Antic, Hud. Eiv. Gr. [Ety. proper 



name.] 

 bayfleldi, Billings, 1858, (Vanuxemia bay- 



fieldi) Can. Nat. & Geo. vol. 4, Hud. 



Riv. Gr. [Ety. proper name.] 

 bimlcata, see Grammysia bisulcata. 

 breviusculus, Billings, 1859, (Cyrtodonta 



breviuscula) Can. Nat. & Geo., vol. 4, 



Chazy Gr. [Sig. very short.] 

 canadensis, Billings, 1858, (Cyrtodonta 



canadensis) Can. Nat. & Geo,, vol. 3, 



Black Riv. & Trenton Gr. [Ety. proper 



name.] 

 carinatus, see Sanguinolites carinatus. 

 carinatus, Meek, 1872, (Dolabra carinata) 



Proo. Acad. Nat. Sci. Phil., Cin'ti Gr. 



This name was preoccupied, 

 cariniferus, Conrad, 1842, Jour. Acad. 



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



bearing a ridge; from the strongly 



carinated umbonal slope.] 

 catskillertsis, see Modiomorpha catskill- 



ensis. 

 chermmgemis, see Sanguinolites chemung- 



ensis, 

 ccmcentrica,see Modiomorpha concentrica, 

 contractus, Hall, 1843, (Cypricardia oon- 



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



Low. Carb. [Sig, contracted.] 

 cordiformis, Billings, 1858, (Cyrtodonta 



cordiformis) Can. Nat. & Geo., vol, 3, 



Black Riv. & Trenton Gr. [Sig. heart- 

 shaped.] 

 corrugatus, Conrad, 1842, Jour. Acad. 



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



wrinkled.] 

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



Cin'ti Gr. [Sig. short] 

 dixonensis, Meek & Worthen, 18G6, Proe. 



Chi. Acad. Sci., vol. 1, Trenton Gr. 



[Ety. proper name.] 

 elongatus, Conrad, 1841, Ann. Rep. N. 



Y., Up. Held. Gr. [Sig. elongated.] 

 emma, Billings, 1862, (Cyrtodonta emma) 



Pal. Foss., vol. 1, Hud. Riv, Gr, [Ety, 



proper name,] 

 ferrugineus. Hall & Whitfield, 1875, Ohio 



Pal., vol. 2, Clinton Gr. [Sig. of the 



color of rusty iron; from iron ore beds.] 

 ganti, Saflford, 1869, (Cyrtodonta ganti) 



Geo. of Tenn., Trenton & Hud. Riv. 



Gr. [Ety. proper name.] 

 hainesi, S. A. Miller, 1874, Cin. Quar. 



Jour.Sci.,vol. 1, Cin'ti Gr. [Ety. proper 



name.] 

 harrietta, Billings, 18 62, (Cyrtodonta 



harrietta) Pal, Foss,, vol, 1, Hud. Riv. 



Gr. [Ety. proper name.] 

 haynanus, Saflford, 1869, (Cyrtodonta 



hayniana) Geo. of Tenn., Trenton & 



Hud, Riv. Gr. [Ety. proper name.] 

 hindi, Billings, 1862, (Cyrtodonta hindi) 



Pal. Foss., vol, 1, Hud. Riv. Gr. [Ety. 



proper name.] 



huronensls, Billings, 1858, (Cyrtodonta 

 huronensis) Can. Nat. & Geo., vol. 3, 

 Black Riv. and Trenton Gr. [Ety. 

 proper name.] 



ineonstans, Billings, 1858, (Vanuxemia 

 inconstans) Can. Nat. & Geo., vol, 3, 

 Chazy Gr, [Sig. changing.] 



indenta, see Cypricardinia indenta. 



inflatus, Conrad, 1842, Jour. Acad. Nat. 

 Sci.; vol. 8, Onondaga Gr, [Sig, in- 

 flated.] 



insularis, Billings, 1866, (Cyrtodonta in- 

 sularis) Catal. Sil. Foss. Antic, Hud. 

 Riv. Gr. [Sig. belonging to an island.] 



islandicus, Hall, 1877, (Proposed here in- 

 stead of Ci/pricardites ventricostus, Hall, 

 1859) Low'. Held. Gr. [Ety. from the 

 type locality, St. Joseph's Island.] 



iowensis, Owen, 1840, Rep. on Mineral 

 lands, Calciferous Gr, [Ety. proper 

 name.] 



latus. Hall, 1847, (Modiolopsis latus) Pal. 

 N. Y,, vol, 1, Trenton Gr, [Sig, wide.] 



leucothea, Billings, 18 62, (Cyrtodonta 

 leucothea) Pal. Foss., vol, 1, Black 

 Riv. Gr. [Ety. mythological name.] 



marceUensis, see Lunulacardium marcell- 

 ense. 



modiolaris, Emmons, syn. for Modiolopsis 

 nasuta. 



montrealensis, Billings, 1859, (Vanux- 

 emia montrealensis) Can, Nat. &Geo., 

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



mytiloides, Conrad, 1841, Ann. Rep. N. 

 Y., Ham. Gr. [Ety. from the resem- 

 blance to Myliliis.] 



nasutus, see Modiolopsis nasuta. 



niota. Hall, 1861, Geo, Rep, Wis., Trenton 

 Gr. [Ety. proper name.] 



obliquus. Meek & Worthen, 1868, Geo. 

 Sur. 111., vol. 3, Galena Gr. [Sig. ob- 

 lique, slanting.] 



ohlongm, syn. for Modiomorpha concen- 

 trica. 



obsoletus, Hall, 1843, (Cvpricardia obso- 

 leta) Geo. Rep. 4th Dist, N, Y., Clin- 

 ton Gr. [Sig. obsolete.] 



obtusus. Hall, 1847, ( Ambonychia obtusa) 

 Pal. N. Y., vol. 1, Black Riv. and 

 Trenton Gr. [Sig. obtuse.] 



ovata, syn. for Modiolopsis modiolaris. 



plebeius, Billings, 1866, (Cyrtodonta ple- 

 beia) Catal. Sil. Foss. Antic, Hud. 

 Riv. Gr. [Sig. common.] 



ponderosus, Billings, 1862, (Cyrtodonta 

 ponderosa) Pal. Foss., vol. 1, Hud. 

 Riv. Gr. [Sig. thick, heavy,] 



quadrilateralis, Hall, 1867, 20th Reg. Rep. 

 N. Y., Niagara Gr. [Sig. four-sided.] 



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

 Ham. Gr. [Ety. from the radiating 

 striis.] 



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

 Up. Held. Gr. [Sig. straight.] 



rectirostris, Hal), 1861, Geo. Rep. Wis., 

 Trenton Gr. [Sig. straight-beaked.] 



recur vus, Conrad, 1842, Jour. Acad. Nat. 

 Sci., vol. 8, Ham. Gr. [Sig. recurved.] 



