204 



LAMELLIBRANCHIATA. 



concava, Meek & Hayden, 1858, (Lyonsia 



concava) Trans. Alb. Inst., vol. 4, Coal 



Meas,. [Sig. concave.] 

 divaricata, Hall & Whitfield, 1875, Ohio 



Pal., vol. 2, Cin'ti Gr. [Sig. from the 



diverging plications.] 

 (?) fragilis, Meek, 1872, Proc. Acad. Nat. 



Sci., Phil., Cin'ti Gr. [Sig. frail, easily 



broken.] 

 (?) neglecta, Meek, 1872, Proc. Acad. Nat 



Sci. Phil., Cin'ti Gr. [Sig. neglected, 



overlooked.] 

 subarcuata, Meek & Worthen, 1865, Proc 



Acad. Nat. Sci. Phil., Keokuk Gr 



[Sig. somewhat arched.] 

 topekaensis, Shumard, 1858, (Leptodo- 



mus topekaensis) Trans. St. Louis 



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



name.] 

 Solemya, Lamarck, 1818, Hist. Nat. An. sans 



Vert., vol. 5. See Solenomya — the 



correct orthography, first used by 



Menke, 1828, Syn. Meth. Edit. 

 Solen, Linnaeus, 1758, Syst. Nat., 10th ed. 



[Ety. Solen, a tube or pipe.] 

 Scalpriformis, Winch ell, 1862, Proc. Acad. 



Nat. Sci., Marshall Gr. [Sig. lancet- 

 shaped.] 

 missouriensis, see Sanguinolites missouri- 



ensis. 

 permianus, Swallow, 1858, Trans. St. 



Louis Acad. Sci., Permian Gr. [Ety. 



proper name.] 

 priscus, Winchell, 1862, Proc. Aead. Nat. 



Sci., Portage Gr. [Sig. ancient.] 

 quadrangularis, Winchell, 1862, Proc. 



Acad. Nat. Sci., Marshall Gr. [Sig. 



quadrangular.] 

 Solenomya, Lamarck, 1818, (Solemya) Hist. 



Nat. Anim. sans Vert., vol. 5. [Ety. 



from the resemblance to the two 



genera Solen and My a.] 

 anodontoides, Meek, 1875, Ohio Pal., vol. 



2, Coal Meas. [Sig. like a shell of the 



genus Anodonta.] 

 biarmica, Verneuil, 1845, Geo. Russ. and 



Ural Mountains, Permian Gr. This 



species has not been satisfactorily 



identified in this country, 

 radiata, Meek & Worthen, 1860, (Solemya 



radiata) Proc. Acad. Nat. Sci. Phil., 



Coal Meas. [Sig. radiated.] 

 recurvata, Swallow, 1858, Trans. St. Louis 



Acad. Sci., Up. Coal Meas. [Sig. 



curved backward.] 

 soleniformis, Cox, 1857, Geo. Sur. Ky., 



vol. 3, Coal Meas. [Sig. like a shell of 



the genus Solen.'] 

 vetusta, Meek, 1871, Proc. Acad. Nat. Sci. 



Phil., Corniferous Gr. [Sig. ancient.] 

 Solenopsis, McCoy, 1844, Carb. Foss. Ire- 

 land. [Ety. Solmopsis, resembling a 



shell of the genus Solen.] 

 solenoides, Geinitz, 1866, (Clidophorus 



solenoides) Carb. und Dyas in Neb., 



Coal Meas. [Sig. like a shell of the 



genus Solen.] 



Steeblopteria, McCoy, 1851, Ann. Mag. 

 Nat. Hist., 2d series, vol. 7. [Ety. 

 streblos, turned the wrong way ; pteron, 

 a wing.] 



tenuilineata, Meek & Worthen, 1860, 

 (Pecten tenuilineatus) Proc. Acad. 

 Nat. Sci. Phil., Coal Meas. [Sig. fine- 

 lined.] 

 Tellina, Linnaeus, 1758, Syst. Nat., 10th ed. 

 [Ety. telline, a sort of mussel.] This 

 genus is unknown in the palaeozoic 

 rocks 



(?) ovata, Hall, 1843, Geo. Rep. 4th Dist. 

 N. Y., Ham. Gr. Syn. for Palseoneilo 

 maxima. 

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

 [Ety. from a resemblance to the genera 

 Tellina and My a.] 



abrupta, Billings, 1862, (Ctenodonta ab- 

 rupta) Pal. Foss., vol. 1, Black River 

 Gr. [Sig. abrupt.] 



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

 Coralline limestone. [Sig. equal- 

 sided.] 



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

 Gr. [Sig. high.] 



anatiniformis, see Pterotheca anatini- 

 formis. . 



angela, Billings, 1865, (Ctenodonta an- 

 gela) Pal. Foss., vol. 1, Quebec Gr. 

 [Ety. proper name.] 



angustata. Hall, I860, Can. Nat. & Geo., 

 vol. 5, Low. Sil. [Sig. narrowed.] 



astartiformis, Salter, 1859, (Ctenodonta 

 astartoeforaiis) Can. Org. Rem., De- 

 cade 1, Black Riv. Gr. [Ety. like an 



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

 vol. 5, Silurian. [Sig. attenuated.] 



contracta, Salter, 1859, (Ctenodonta con- 

 tracta) Can. Org. Rem., Decade 1, 

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



curta, Hall, 1852, Pal. N. Y., vol. 2, Clin- 

 ton Gr. [Sig. short.] 



donaciformis, Hall, 1847, Pal. N. Y-, vol. 

 1, Trenton Gr. [Sig. like a shell of 

 the genus Donax.] 



dubia, Hall, 1847, Pal. N. Y., vol. 1, Black 

 Riv. & Trenton Gr. [Sig. doubtful.] 



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

 Clinton Gr. [Sig. elliptical.] 



gibberula, Salter, 1859, (Ctenodonta gib- 

 berula) Can. Org. Rem., Decade 1, 

 Black Riv. & Trenton Gr. [Sig. a 

 little hunch-backed.] 



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

 Black Riv. & Trenton Gr. [Sig. 

 gibbous.] 



hartsvillensis, Safford, 1859, (Ctenodonta 

 hartsvillensis) Geo. of Tenn., Nash- 

 ville Gr. [Ety. proper name.] 



hilli, S. A. Miller, 1874, Cin. Quar. Jour. 

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



inflata, Hall, 1861, Geo. Rep. Wis., Tren- 

 ton Gr. [Sig. inflated.] 



