GASTEROPODA. 



303 



Gin. Soc. N'dt. Hist., yoI. 5, Niagai'a 



Gr. [Ety. proper name.] 

 Xaticopsis sequistriatu was first published 



in 1871, in Proe. Acad. Nat Sci. 

 c'omperta. Hall, 1879, Pal. N. Y., vol. 5, 



pt. 2, pi. 29, Up. Held. Gr. [Sig. 



ascertained.] 

 depressa is from the Marshall or Kin- 



derhook Gr. 

 littonana var. genevievensis. Meek & 



Worthen, 180G, Proc. Acad. Nat. 8ci., 



Kaskaskia Gr. [Ety. proper name.] 

 monilifera. White, 1880, 12th Rep. U. S. 



Geo. ISiir. Terr., Up. Coal Meas. [Sig. 



bead bearing.] 

 ortoni, Whitfield. 1882, Desc. New Spec. 



Foss. from Ohio, Coal Meas. [Ety. 



proper name.] 

 ziezac, Whitfield, 1882, Desc. New Spec. 



Foss. from Ohio, Kaskaskia Gr. [Sig. 



having short, sharp turns.] 

 OrniLETA complanata var. nana. Meek, 1870, 



Hayden's U. S. Geo. Sur. Terr., 



Calciferous Gr. [Sig. a dwarf.] 

 OiiMATHiCHNUS, S. A. Miller, 1880, Jour. 



Cin. Soc. Nat. Hist., vol. 2. [Ety. 



ormathos, a string of beads; ich)ios, 



a track.] Supposed to be the trail of 



a Gasteropod. 

 moniliformis, S. A. Miller, 1880, Jour. 



Cin. Soc. Nat. Hist., vol. 2, Utica 



Slate Gr. [Sig like a necklace.] 

 Pal^acmj!:a irvino'i, Whitfield, 1878, Ann. 



Rep. Geo. Sur. Wis., Potsdam Gr. 



[Ety. proper name.] 

 Paljcote"ochus, Hall, 1879, Pal. N. Y., 



vol. 5, pt. 2 [Ety. palaios, ancient; 



lyochus, a genus.] 

 kearneyi instead of Pleurotomaria kear- 



neyi. 

 Patella Linnaeus, 1758, Syst. Nat. 10th Ed. 



[Ety. pa^eZZa, a dish.] 

 levettei, White, 1882, 11th Rep. Geol. & 



Nat. Hist. Indiana, Warsaw Gr., re- 

 fer to Lepetopsis levettei. 

 Phanerotinus paradoxus is from the Mar- 

 shall or Kinderhook Gr. 

 Phragmostoma cunulae (a little cradle) in- 

 stead of P. cumulus 

 Pileopsis conoideSy P. naticoides, P, rotun- 



data, and P. spiralis, Castelnau, 1843, 



Syst. Sil. Not recognized. 

 Platyceras bivolve. White & Whitfield, 



1862, Proc. Bost, Soc. Nat. Hist., vol. 



8, Kinderhook Gr. [Sig. with two 



rolls ] 

 chesterense. Meek & Worthen, 1866, 



Proc. Acad. Nat. Sci., Kaskaskia Gr. 



[Ety. proper name.] 

 cornuforme and P. vomerium are from 



the Marshall or Kinderhook Gr. 

 herzeri, Winchell, 1870, Notices and 



Desc. Foss. from Marshall Gr. [Ety. 



proper name.] 

 livvigatum, Meek & Worthen, 1866, Proc. 



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



smoothed.] 

 minutissinunn, Walcott, 1879, 32d Reg. 



Rep., Calciferous Gr. [Sig. the 



smallest.] 

 Platyceras naticoides, Etheridge, 1878, 



Qwar. Jour. Geo. Soc, vol. 34, Up. Sil. 



[Sig. like a Natica.) 

 paralium, AVhite & Whitfield, 1862, Proc. 



Bost. Soc. Nat. Hist., vol. 8, Kinder- 

 hook Gr. [Sig. that grows by the 



seaside.] 

 squalodens, Whitfield, 1882, Desc. New 



Spec. Foss. from Ohio, Up. Held. Gr. 



[v>ig. a kind offish tooth.] 

 subsinuosum, Worthen, 1882, Bull. No. 



1, HI. St. Mus. Nat. Hist., Low. Held. 



Gr. [Sig. somewhat sinuous.] Pro- 

 posed instead of P. ^nbundatum, M. 



&W. 

 tribulosum. White, 1880, 12th Rep.U. S. 



Geo. Sur. Terr., Burlington Gr. [Sig. 



thorny.] 

 Platystoma grayvillense, Worthen, 1882, 



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



Coal Meas. Proposed instead of P. 



tumidum, M. & W., which was pre- 

 occupied. 

 Pleuronotus, Hall, 1879, Pal. N. Y., vol. 



5. pt. 2. [Ety. pleura, side; 7iotos, 



back] 

 decewi, instead of Euomphalus decewi. 

 Pleurotomaria adjutor. Hall, 1879, Pal. 



N. Y., vol. 5, pt. 2, Up. Held. Gr. 



[Sig. a helper.] 

 arata var. clausa. Hall, 1879, Pal. N. Y., 



vol. 5, pt. 2, Up. Held. Gr. [Sig. 



an inclosed place.] 

 broadheadi. White, 1880, 12th Rep. 



U. S. Geo. Sur. Terr., Coal Meas. 



[Ety. proper name.l 

 coniformis. Worthen, 1882, Bull. No. 1, 



HI. St. Mus. Nat. Hist., Coal Meas. 



[Sig. cone shaped.] Proposed instead 



of P. conoides, M. & W. 

 doris, refer to Cyclonema doris. 

 concava, of Hall, refer to Eotrochus con- 



cavns. 

 elegantula, instead of Murchisonia ele- 



gantula. 

 gurleyi, Meek, 1871, Proc. Acad. Nat. 



Sci., Coal. Meas. [Ety. proper name.] 

 imitator, refer to Callonema imitator, 

 itys var. tenuispira. Hall. 1879, Pal. N. 



Y., vol. 5, pt. 2, Ham. Gr. [Sig. 



having a slender spire.] 

 kearneyi, in the 14th Reg. Rep., refer to 



Paiaeotrochus kearneyi. 

 laphami, Whitfield, 1878, Ann. Rep. 



Geo. Sur. Wis., Niagara Gr. [Ety. 



proper name.] 

 leavenworthana, refer to Cyclonema lea- 

 ven worthanum . 

 meta. Meek and Worthen, 1865, Proe. 



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



pyramidal.] 

 mississippiensis. White and Whitfield, 



1862 Proc. Bost. Soc. Nat. Hist., vol. 



8, Kinderhook Gr. [Ety. proper 



name.] 

 mitigata, P. quinquesulcata, P. rota, P. 



