WRITINGS OF F. B. MEEK AND A. H. WORTHEN. 45 



Nautilus, Linnaans, 1758 305 



y. globatus, Sowerby? 1825, pi. xxiv, flgs. 5 a, b 305-306 



N. chestcrcnsis, M. & W., 1860, pi. xxiv, flss. 4 a, b 306-307 



Subgenus Endolobus,* M. & "W., 1865 307-308 



N. (Endolobus) spectabilis, M. <t "W., 1860, pi. xxv, flgs. 1 a, b 308-309 



INVEETEBKATE FOSSILS OF THE COAL MEA6UEK8. 



Radiata. 



Crinuidea. 



Cyathocrinus, Miller, 1821 310 



C'J sangamonensis, M. & W., 1861, pi. xxvi, figs. 1 a, b, and fig. 31, p. 311 310-312 



Zeacrinus, Troost 312 



Z. discus, M. & W., 1860, pi. xxtI, figs. 3 a, b 312-313 



Z.? crassus, M. &. W., 1860, pi. xxvi, flgs. 2 a, b, and fig. 32, p. 315 314-315 



Erisocrinus, M. &. W., 1865 315-317 



E. typus, M. & W., 1865, flg. 33, p. 317, and fig. 34 a-c, p. 318 317-318 



E. conoidetis, M. &.W., 1865, flgs. 35 a, 6 318-319 



E. tuberculaUts, M. & W., 1865 319-320 



Molhisca. 



Brachiopoda. 



ProducHis, Sowerby, 1812 320 



P. nanus, M. &, W., 1860, pi. xxvi, figs, ia-d 320-321 



Syntrielasma, M. & "W., 1865 321-323 



S. hemiplicata. Hall, (sp.), 1862, figs. 36 Or-c, p. 322, and flg. 37 a, b, p. 324 322-325 



Lamellibranchiata. 



Aviculopectcn, McCoy, 1852 .' 326 



A. coxanus, M. & W., 1860, pi. xxvi, flg.Ca, b 326-327 



A. pellucidus, M. &, "W., 1860, pi. xxvi, fig. 5 a, 6 327-328 



A. koninckii, M. &. W., 1860, pi. xxvi, fig.8 328-329 



A. interlineatus, M. & "W., 1860, pi. xxvi, flg.7 a, b 329-330 



A. occidentalis, Shumard? 1855 pi. xxvii, figs. 4, 5, 5 a 331-332 



Streblopteria, McCoy, 1851 332-334 



S.? tenuilineata, M. & W., 1860, pi. xxvi, figs. 9 o, b 334-336 



Eumicrotis, Meek, 1864 336-337 



E. hawni var. sinuata, M. & "W. [1866], pi. xxvii, figs. 12 o, 12 6, 13, 14 338-339 



Pterinea, Goldfuss, 1833 339 



Subgenus Mo7iopteHa,f M. &,W., 1866 339-340 



P. (Monopteria) gibbosa, M. & "W"., 1866, pL xxvii, flgs. 11, 11 a, 6 340-341 



Myalina, de Koninck, 1844 341 



M. swallovi, McChesney, 1860, pi. xxvii, flgs. 1 a-d 341-342 



M.meliniformis,M. & "W., 1866, pi. xxvii, fig.3 343-344 



M. recurvirostris, M. & W., 1860, pL xxvi, flgs. 9 a-c 344-345 



Schizodus, King, 1844 345 



Schizodzis, ,8p.?, pi. xxvii, fig. 7 345-346 



Edmondia, de Koninck, 1844 346 



E. unioniformis, sp., Phillips, 1836, pL xxvii, flgs. 6, 6 a and b 346-347 



Pleurophoriis, King, 1844 347 



P. subcostatus,'iA. &. W., 1865, pi. xxvii, figs. 2, 2a 347-349 



Solenomya, Lamarck, 1819 349 



S. radiata, M. & "W., 1860, pi. xxvi, flg. 10 a, 2» 349-350 



Allorisma, 'King, 1844 350 



Allorisma, sp. undt.,pl. xxvii, flgs. 9, 9 a 350 



Oasteropoda. 



Pleurotomaria, Defrance, 1826 351 



P. subconstricta, M. & "W., 1860, pi. xxviii, flgs. 6 a-<j 351-352 



P.gpeciosa, M. & W., 1860, pi. xxviii, flgs. 5 a-c 352-353 



P.scitxila, M. & W., 1860, pi. xxviii, flgs. 9 o-d 353-354 



P. brazoensis, Shumard? 1860, pi. xxviii, flgs. 1 Or-d 354-355 



P. tenuicineta, M. & "W., 1860, pi. xxviii, flg. 3 a-d 355-356 



P.granulo-striata, M. & W., 1860, pi. xxviii, flg. 2 o-d 356-357 



P.pratteni, M. & W., 1860, pi. xxviii, flg. 7 a-d... 357-358 



P. subsinuata, M. & W., 1860, pi. xxvii, flgs. 4 a-d 358-359 



P. turbiniformis, M. & "W., 1860, pi. xxviii, flgs. 8 a-c 359-360 



* e^Soi', within ; AojSos, a lobe. t/*ovo9, solitary ; wrepov, a wing. 



