266 BULLETIN NO. SO, UNITED STATES NATIONAL MUSEUM. 



Page. 



LAUELLIBRANCHIATA. 



Section II. — Laniellibranchiate Sbulls from the Plastic Clay; 



Astartidce. 



A itarte, Soworby 23 



A. reta. (lonrad, ]>\. ii, fiR. 1 29-24 



OypnnidcB. 



Amhonicardia, n. g., Whitfield, 1885 24-25 



A. eookii, n.n., "Whitfield, 1885, pL ii, flgs. 11-14 25 



Corbicula, Megerle 26 



O.f emaeerata, n.H., Whitfield, 1885, pi. ii, figs. 5, 6 26 



C. annoga, Conrad, pi. ii, flgs. 2-4 26-27 



Chnathodon 27 



OJ tenuidens, n. .s., Wliitfleld, 1885, pl.ii, figs. 7-10 27-28 



Section III.— Lami-Ilibranchiata from the Lower Marl Beds. 

 IntegripaUiata. 



Asiphonida. 



Monomyaria. 

 Ostreidce. 



Oatrea, Linn 29 



O. denticulifera, Conrad, pi. iii, fis. 8, 9 29 



O. crenulimarginatn, Gabb, pi. iii, flgs. 10, 11 30 



O. panda, Morton 30 



O. plumosa, Morton, pi. iii, figs. 12, 13 31-32 



O.subspatulata, L. & Sow., 1845, pi. iii, fig. 14 32-33 



O. tecticosta, Gabb, pi. iii, fig.s. 1, 2 33-34 



O. larva, Lamarck, pi. iii, flgs. 3,7 34-36 



Oryphcea, Lara 36 



G.vegUvlaris, Lam. i (1806), pi. iii, flgs. 15,16;pLiv, figs. 1-3; and pi. v 36-39 



Exogyra. Say 39 



E.coatata, Say, pi. vi, figs. 1,2 .' 39-41 



Anomiidce. 



Anomia, Linn 42 



A. argentaria, Morton, pi. iv, figs. 9-11 42 



A. tellinoides, Morton, pi. iv, figs. 12, 13 - 43 



IHplogchiza, Conrad, 1866 43 



D.cretacea, Conrad, pi. iv, flgs. 4-8 43-44 



Paranomia, Conrad, 1800 44 



P.scabra, Morton, pi. x, flg. 10 44 



P. lineata, Conrad, pi. ix, flg. 10 45 



' Pecten, Klein 45 



P.venugtxis, Mort., pi. vii, flgs. 1-4 45-46 



P. quinquenariug, Conrad, 18."»4, pi. vii, flgs. 13-16 47 



P.Unuitestm, Gabb, 1861, pi. vii, figs. 5,6 47-48 



P.planicostatug, n. s., Whitfield, 1885, pL viii, flgs. 10,11 48-49 



P. (Ohlamyg) craticidus, Morton, pi. vii, ^s. 17, 18 49-50 



P. iSyncyclonemu?) perlainellogug, pi. vii, flg. 7 _ 50-51 



Amvai^im, Klein _ 51 



A. gimplicum, Conrad, pi. vii, flgs. 11, 12 _ 51-52 



A. conradi, n.s., AVhitflold, 188."), pi. vii, flgs. 8-10 52-53 



Oamptonectes {Amvsiu7u) burlingt"nensig, Gabb, pi. viii, flgs. 3-9.. 53-55 



C'amptonectes par vug, Q. a., Whit&eld, 1885, pi. viii, flgs. 1,2 _ 55 



NeiUiea, Drou<-t „ 56 



N. quinquecogtata (Sowerby), pi. viii, flgs. 12-14 _ 56-57 



Spondylidce. 



Spondyliu, Lam „ 57 



S.gregalig, Morton, pi. ix, figs. 11, 12, and pi. x, flgs. 1,2 57-68 



Dianchora, Sowerby _. 58-59 



D. echinata, Morton, pi. x, flgs. 3-9 _ 59-60 



Plieatula, Lam „ 61 



P. urtieoga, Morton, pi. ix, flgs. 1,2 ^ 61 



Radula'. Klein , 61 



R. pelagiea, Morton, pi. ix, figs. 3-5 „. 61-62 



B. acuiilineata, Conrad, pi. ix, flgs, 6,7 ^ 62-63 



^.reticulata, Lyell & Forbes, 1845, pi. ix, flgs. 8,9 .^ «3-«4 



