WRITINGS OF F. B. MEEK. 99 



Page. 



Complanaria, Swainsou 113 



Unionopsis, Swainson ( = Calceola, Swainson, 1840 ; not Lam., 1799) 113 



M. nehrascensis, Meek, 1871, pi. i, ligs. 5a-c 114-115 



Orasmtellidce . 



Crassatella, Lamarck, 1801 115-117 



Subgenus Pachtjthcerus, Courad, 1870 116 



G. (Pachythcprus) eransi,B.. & M., 1«54, pi. xvii, figs. 6 a-d 117-118 



Crassatellma. Mt-ek, 1871 118-120 



C. oblonga, Meek, 1871, pi. it, figs. 3 a-e 120-121 



Eriphyla, Gabb, 1864 121-124 



E. gregai ia, M. <& H., 1856, pi. xvii, figs. 9 a, b, figs. 6 and 7, p. 124 124-126 



Solemyidce. 



/SoJ^nya, Lamarck, 1818 12^129 



S. subplicata, U. & H., 1856, pi. x.wiii, fig. 19 129 



Lucinidce. 



Lucina. BruguWre, 1792 130-133 



Myrtea. Tmton, 1822 130 



Cyclas, H. & A. Adams, 1857 (notBrug.) 131 



Milthea, H. & A. Adams, 1857 131 



L.subundata, Hall & Meek, 1854, pi. xvii, figs. 2 a-e 133-134 



L. occidentalix, Morton, 1842, pi. xvii, figs. 4 a-d 134-135 



L. oceidentaUsYAr. ventricosa, M. & H., 1860, pi. xvii, figs. 3 a-e 135-136 



Sphoeriola, Stoliczka, 1871 136-137 



S. f cordata, M. & H., 1857, pi. xxix, figs. 3 a-c 137-138 



S. ? warrenatia, Meek 138 



S. 'I endotrachys, Meek, pi. xxix, fig. 2 139 



Tancredidce. 



Tancredia, Lycett 1850 140-142 



T. americana, M. &. H.. 1856, pi. xxxviii, figs. 1 a-h 142-144 



Qlossidce. 



Cypnna, Lamarck, 1812 144-146 



C. ovata, M. & H., 1857, pL xxix, figs. 7 a-c, and fig. 8, p. 146 146-147 



C. ovata var. coinpressa, M. &- H., pi. xxx. fig. 11 147 



Ve7iiella, .Stoliczka, 1870 (= Tenilia, Morton ; not of Dnponchel, or Alder & 



Hancock) 147-152 



Venilieardia, Stoliczka, 1870 149 



Y. conradi, Morton, figs. 9-11 148 



Y. goniophora. u. .'*., Meek, 1876, pi. iv, fig. 4 and fig. 12, p. 152 152-153 



Y. mortoni, M. & H., 1862, pi. iv, figs. 3 a, 6 154 



Y. subtumida. M. & H., 1857, pi. xvii, figs. 5 a, & 154-150 



Y. ( Venilieardia ?) humilis, M. & H., 1860, pi. xxx, figs. 5 a-c 155-156 



Cyrenidce. 



Cyrena, Lamarck, 1ST8 157-158 



Egeta, H. & A. Adams, 1858 157 



Cyrena dakotensis. M . <t H. , pi. i, figs. 1 a-/ 159-160 



Corbicula, Miihlfeldt, 1811 160-163 



Yeloritina, Meek 161 



Xepfesf Acs, Meek 161 



C. ? nucalis. Meek, 1872, pi. ii, figs. 5 a,c 163-164 



C. ? subtrigonalis. Meek, 1872, pi. ii, fi* . 6 164-165 



Cardiidce. 



Cardium, Linn.Ti'us, \75ii (= A canthocardium, Gray) 165-168 



Pectunculus ( Adanson), Stoliczka ; but not H. & A. Adams and others 166 



~ Trachycardimn, ]V16rch 166 



Criocardiitm, Conrad 166 



Tropidocardium, Eoemer (Cardium proper of most authors) 166 



Cerastoderma (Poll), Morch 166 



Nemocardium, Meek 167 



C. (Criocardium) speeiosum, M. & H , 1856, pi. xxxvii, figs. 4 a-c 169-170 



O. kansasense,U.ec'k, 1871, pi. ii, figs. 14 a-d 170-171 



Protoeardia, Beyrich, 1845 171 



Pacliycardium, Conrad 172 



Leptoeardia, Meek 172 



Suiigenus, Protoeardia 172 



P. {Protoeardia) «aK»ia;n«.'s, Meek, 1871, pi. ii, figs, 13 a-c 174 



