LAMELLIBEANCHIATA. 



311 



gillata, are from the Marshall or Cho- 



teau Gr. 

 Edmondia inlesi is a typographical error 



for E. nilesi. 

 piiionensis, Meek, 1877, U. S. Geo. Expl. 



40th parallel, vol. 4, Devonian. [Ety. 



proper name.] 

 subplana instead of Cypricardia sub- 



plana. 

 GoNiOPHORA chemungensis, Vanuxem, 1842 



(Cypricardites chemungensis), Geo. 



Rep. N. Y., Chemung Gr. [Ety. 



proper name.] 

 plicata instead of Cypricardella plicata. 

 speciosa, Hall, 1879, Desc. New Spec. 



FosB., Niagara Gr. [Sig. beautiful.] 

 Isocardia, jennae is from the Marshall Gr. 

 Leptodomus undulatus, Whitfield, 1878, 



Ann. Eep. Geo. Sur. Wis., Niagara 

 • Gr. [Sig. undulated.] 

 LiTHOPiiAGA illinoisensis, Worthen, 1882, 



Bull. No. 1, 111. St. Mus. Nat. Hist. 



[Ety. proper name.] Proposed instead 



of the form identified as L. lingualis 



of Phillips. 

 lingualis is not an American species. 

 LuciNA billingsana, n. sp. Devonian. This 



name is proposed instead of L. occi- 



dentalis, Billings, 1859, Assiniboine 



& Saskatchewan, Ex. Exped., p. 187, 



figs, b and c. It is from Snake Island, 



Lake Winnipegosis. The specific 



name occidentalis was preoccupied by 



Morton for a Cretaceous species. 

 Lunulica:rdium fragosum. Meek, 1877 



(Posidonomya fragosa), TJ. S. Geo, 



Expl., 40th parallel, Carboniferous. 



[Sig. rough.] 



MaCRODON cochlearis is from the Marshall 

 Gr. 



Megalomus compressus, Nicholson & 

 Hinde, 1874, Can. Jour., vol. 14, 

 Niagara Gr. [Sig. compressed.] 



MoDiOLOPSis cancellata, Walcott, 1879, 

 Trans. Alb. Inst., vol. 10, Utica Slate 

 Gr. [Sig. cancellated.] 

 carrollensis, Worthen, 1882, Bull. No. 1, 

 111. St. Mus. Nat. Hist., Galena Gr. 

 [Ety. proper name.] Proposed in- 

 stead of M. subnasuta of Meek & 

 Worthen, 1870, Proc. Acad. Nat. Sci., 

 p. 41, which was preoccupied, 

 rectiformis, Worthen, 1882, Bull. No. 1, 

 111. St. Mus. Nat. Hist., Trenton Gr. 

 [Sig. straight formed.] proposed in- 

 stead of .If. orthonota, Meek & 

 Worthen, 1868, Geo. Sur. 111., vol. 3, 

 which was preoccupied. 



MoDiOMORPHA concentrica, should be Con- 

 rad, 1838 (Pterinea concentrica) Ann. 

 Kep. Geo. Sur., N. Y., etc. 



MoNOTis septentrionalis, Haughton, 1857, 

 Jour. Roy. Dub. Soc, vol. 1. [Sig. 

 northern.] 



Myalina apachesi is from the Subcarbon- 

 iferous ; M. concentrica from the War- 

 saw Gr., M. iowensis from the Mar- 



shall Gr., and M. perattenuata was 

 described in 1858. 

 Myalina iowensis, Winchell, 1865, Proc. 

 Acad. Nat. Sci., Burlington Gr. [Ety. 

 proper name.] 

 Mytilarca percarinata, Whitfield, 1882, 

 Desc. New Spec. Foss. from Ohio, 

 Up. Held, Gr. [Sig. very carinate.] 

 NucuLA was described in 1801 ; N. hians, 

 N. houghtoni and N. microdonta are 

 from the Marshall or Kinderhook Gr. 

 iowensis was described in the Proc. Bost. 

 Soc. Nat. Hist., vol. 8, and is a Tel- 

 linomya. N. Stella is also a Tellin- 

 omya. 

 nasuta, refer to Nuculana nasuta. 

 perumbonata. White, 1879, Bull. U. S. 

 Geo. Sur., vol. 5, No. 2, Carbonifer- 

 ous. [Sig. having a very convex umbo.] 

 Nuculana dens-mamillata, N. nuculiformis, 

 N. pandoriformis, and N. saccata are 

 from the Marshall Gr. 

 nasuta instead of Nucula nasuta. 

 obesa, White, 1879, Bull. U. S. Geo. Sur., 

 vol. 5, No. 2, Carboniferous. [Sig. 

 plump.] 

 NucuLiTES mactroides is from the Marshall 

 Gr. 

 swZca^mws is from the Marshall Gr., and 



is a Tellinomva. 

 triangularis. Hall & Whitfield, 1877, U. 

 S. Geo. Expl , 40th parallel, Devonian. 

 [Sig. triangular.] 

 yoldiiformis, Ulrich, 1879, Jour. Cin. 

 Soc. Nat. Hist., vol. 2, Hud. Riv. Gr. 

 [Sig. shaped like a Yoldia.] It is not 

 a Nuculites. 

 Orthodesma byrnesi, S. A. Miller, 1881, 

 Jour. Cin. Soc. Nat. Hist., vol. 4, Hud. 

 Riv. Gr. [Ety. proper name.] 

 cuneiforme, S. A. Miller, 1880, Jour. 

 Cin. Soc. Nat. Hist , vol. 3, Hud. Riv. 

 •Gr. [Sig. wedge formed.] 

 mickelboroughi, Whitfield. 1878, Jour. 

 Cin. Soc. Nat. Hist., vol. 1, Hud. Riv. 

 Gr. [Ety. proper name.] 

 occidentale, S. A. Miller, 1880, Jour. 

 Cin. Soc Nat. Hist., vol. 3, Hud. Riv. 

 Gr. [Sig. western.] 

 subovale, Ulrich, 1879, Jour. Cin. Soc. 

 Nat. Hist., vol. 2, Hud. Riv. Gr. [Sig. 

 suboval.] 

 Orthonota phaselia is from the Marshall Gr. 

 ventricosa, White & Whitfield, 1862, 

 Proc. Bost. Soc. Nat. Hist., vol. 8, 

 Kinderhook Gr. [Sig. ventricose.] 

 Orthonotella, S. a. Miller, 1882, Jour. 

 Cin. Soc. Nat. Hist., vol. 5. [Ety. 

 orthos, straight; notos, back; ellus, 

 diminutive.] 

 faberi, S. A. Miller, 1882, Jour. Cin. Soc. 

 Nat. Hist., vol. 5, Hud. Riv. Gr. 

 [Ety. proper name.] 

 Ostrea patercula, Winchell, is from the 



Marshall Gr. 

 PAL.EONEILO similis, Whitfield, 1882, Desc. 

 New Spec. Foss. from Ohio, Erie 

 Shale, Portage ( ?) Gr. [Sig. similar.] 



