312 



LAMELLIBRANCHIA TA. 



Paracyclas peroccidens, Hall & Whitfield,- 



1877, U. S. Geo. Expl., 40th parallel. 



Devonian. [Sig. far western.] 

 sahini is from the Chemung Gr. 

 Pernopecten limatus is from the Marshall 



Gr. 

 Pholadomya elonqata is Allorisma elongatum. 

 Pinna ludlovi, Whitfield, 1876, in Ludlow's 



Carroll to Yellowstone Park, Coal 



Meas.. [Ety. proper name.] 

 maxvillensis, Whitfield, 1882, Desc. New 



Spec. Foss. from Ohio, Kaskaskia Gr. 



[Ety. proper name.] 

 missouriensis is from the St. Genevieve 



limestone, or St. Louis Gr. 

 Pleurorhynchus antiqua is Conocardium an- 

 tiquum. 

 Posidonia clathrata, P. distans, and P. per- 



striata were described in 1853. 

 Posidonomya ambigua is from the Marshall 



Gr. 

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



40th parallel, refer to Lunulicardium 



fragosum. 

 Prisconaia, Conrad, 1867, Am. Jour. 



Conch., vol. 3. [Ety. proper name.] 

 ventricosa, Conrad, 1867, Am. Jour. 



Conch., vol. 3, Coal Meas. [Sig. ven- 



tricose.] 

 Pseudomonotis curia is Jurassic. 

 Pterinea brisa is probably a syn. for P. 



strisecosta. 

 cancellata, Barris, 1879 (Avicula cancel- 



lata) Proc. Dav. Acad. Sci. Cornifer- 



ous limestone. [Sig. cancellated.] 

 concentrica is Modiomorpha concentrica. 

 crenistriata, Winchell, 1862 (Cardiopsis 



crenistriata), Proc. Acad. Nat. Sci., 



Marshall Gr. [Sig. having wrinkled 



striae.] 

 mucronata, Ulrich, 1879, Jour. Cin. Soc. 



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



[Sig. pointed.] 

 neglecta, McChesney, 1861, New Palaeo- 

 zoic Fossils, Niagara Gr. [Sig. over- 

 looked, 

 newarkensis, Meek, 1871, Proc. Acad. 



Nat. Sci., Waverly Gr. [Ety. proper 



name. ] 

 similis, Whitfield, 1882, Desc. New Spec. 



Foss. from Ohio, Marcellus Shale. 



[Sig. similar.] 

 spinalata, Winchell, 1865, Proc. Acad. 



Nat. Sci., Burlington (?) Gr. [Sig. 



spine winged.] 

 Pteronites spergenensis, Whitfield, 1882, 



Bull. Am. Mus. Nat. Hist., No. 3, 



Warsaw Gr. [Ety. proper name.] 



Pyanomya, S. A. Miller, 1881. Jour. Cin. 

 Soc. Nat. Hist., vol 4. .[Ety. pyanos, 

 a bean; Mya, a genus.] 

 gibbosa, S. A. Miller, 1881, Jour. Cin> 

 Soc. Nat. Hist., vol. 4., Hud. Riv. Gr. 

 [Sig. gibbous.] 

 Ptychodesma knappanum is from the Ham. 



Gr. 

 Sanguinolaria leptogaster is from the 



Marshall or Kinderhook Gr. 

 Sanguinolites chemungensis, refer to 

 Goniophora chemungensis. 

 amygdalinus, S. iowensis, S. jejunus, S. 

 missouriensis, S. nasutus, S. strigatus 

 and S. sulciferus are from the Mar- 

 shall or Kinderhook Gr. 

 naiadiformis, Winchell, 1870, Notices & 

 Desc. Foss, from the Marshall Gr. 

 [Sig. like a water nymph.] 

 securis, Winchell, 1870, Notices & Desc. 

 Foss. from Marshall Gr. [Sig. broad- 

 edged axe.] 

 sulciferus is from Proc. Acad. Nat. Sci., 

 1863. 

 Schizodus subtrigonalis, Meek, 1871, Proc. 

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

 subtrigonal.] 

 Sedgwickia lunulata, Whitfield, 1878, Jour. 

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

 Gr. [Sig. resembling alittle crescent.] 

 neglecta, is Cuneamya neglecta. 

 Tellinomya angustata, and T. attenuata 

 are from the Upper Silurian, 

 cingulata, Ulrich, 1879, Jour. Cin. Soc. 

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

 [Sig. girded.] 

 iowensis instead of Nucula iowensis. 

 stella instead of Nucula Stella. 

 sulcatina instead of Nuculites sulcatinus. 

 Unio orthonotus is Modiolopsis orthonota. 

 primigenius is Modiolopsis primigenia. 

 Vanuxemia, Billings, 1858, Can. Nat. & 

 Geol., vol. 3. [Ety. proper name.] 

 This genus may be restored as it is 

 probably distinct from Cypricardites 

 though related to it. The species are 

 V. bayfieldi, V. inconstans, V. dixon- 

 ensis, V. montrealensis and V. tom- 

 kinsi. 

 tomkinsi, Billings, 1860, Can. Jour , vol. 

 6, Corniferous limestone. [Ety. prop- 

 er name.] 

 Yoldia rushensis, McChesney, instead of 

 Y. gibbosa, McChesney, as the latter 

 was preoccupied. And Y. knoxensis 

 instead of Y. polita for like reason. 



