LAMELLIBEANCHIATA. 



311 



gillata, are from the Marshall or Cho- 

 teau Gr. 



Edmohdia inlesi is a typographical error 

 for E. nilesi. 

 ^j., ; pinonensis, Meek, 1877, U. S. Geo. Expl. 

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

 proper name.] 

 subplana instead of Cypricardia suh- 

 plana. 



GoNioPHOEA chemungensis, Vanuxem, 1842 



//. (Cypricardites chemungensis), Geo. 

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

 proper name.] 

 plicata instead of Cypricardella plioata. 



f, speoiosa. Hall, 1879, Deso. New Spec. 

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



Isocardia, jennse is from the Marshall Gr. 



Lbptodomus undulatus, Whitfield, 1878, 



5; Ann. Bep. Geo. Sur. Wis., Niagara 

 Gr. [Sig. undulated.] 



LiTHOPHAGA- lUinoisensis, 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 

 & Saslvatohewan, Ex. Exped., p. 187, 

 figs. 6 and c. It is from Snake Island, 

 Lake Winnipegosis. The specific 

 name occidentalis was preoccupied by 

 Morton for a Cretaceous species. 



LuNTJLiCAEDiuM fragosum. Meek, 1877 

 /y^ (Posidonomya fragosa), U. S. Geo. 

 Expl., 40th parallel. Carboniferous. 

 [Sig. rough.] 



MacEODON coohlearis is from the Marshall 



/3. Gr. 



Megalomus compressuB, Nicholson & 



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



Niagara Gr. [Sig. compressed.] 



MoDiOLOPSis caiacellata, Walcott, 1879, 

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

 Gr. [Sig. cancellated.] 

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

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

 [Ety. jjroper 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 M. orthonota, Meelc & 

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

 which was preoccupied. 



MoDiOMOEPHA concentrica, should be Con- 

 rad, 1838 (Pterinea concentrica) Ann. 

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



MoNOTis septentrionalis, Haughton, 1857, 

 Jour. Koy. 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.] 

 Mytilaeca percarinata, Whitfield, 1882, 

 q, Deso. New Spec. Foss. from Ohio, 

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

 NucuLA was described in 1801; N. hians, 

 /3. 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. 

 nasnta, refer to Nuculana nasuta. 

 / V 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, 

 l^j 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 

 "J Gr. 



sulcatinus i& tvom the Marshall Gr., and 

 is a Tellinomva. 

 Av triangularis. Hall & Whitfield, 1877, U. 

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

 [Sig. triangular.] 

 ■£L- yoldiiformis, Ulrich, 1879, Jour. Cin. 

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

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

 a Nuculites. 

 Oethodesma byrnesi, S. A. Miller, 1881, 

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

 ' Kiv. Gr. [Ety. proper name.] 



ouneiforme, S. A. Miller, 1880, Jour. 

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

 Gr. [Sig. wedge formed.] 

 mickelboroughi, Whitfield. 1878, Jour. 

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

 Gr. [Ety. proper name.] 

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

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

 Gr. [Sig. western.] 

 subovale, Uliich, 1879, Jour. Cin. Soc. 

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

 suboval.] 

 Okthonota phaselia is from the Marshall Gr. 

 , , ventricosa. White & Whitfield, 1862, 

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



Kinderhook Gr. [Sig. ventricose.] 

 Obthonotella, S. a. Miller, 1882, Jour. 

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

 orthos, straight; 7iotos, back; ellus, 

 diminutive.] 

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

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

 [Ety. proper name.] 

 Ostrea patercula, Winchell, is from the 



Marshall Gr. 

 Pal^oneilo similis, Whitfield, 1882, Desc. 

 New Spec. Foss. from Oliio, Erie 

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



