WRITINGS OF F. B. MEEK AND A. H. WORTHEN. 83 



Page. 



P. ineomptus, "White, 1863, pi. iii, fig. 7 459-461 



Pentrcmites. Say 461 



P.burlingtonensis, M. <fc W., 1869, pi. viii, fig. 7 461^62 



CodoniteJf, M. &. W., 1869 463-464 



G. utelliformis, O. cfe S., .sp., 1850, pi. ix, flg. 5, 5a, 6 464-466 



G. gracilis, n. s., M. & W., 1873, pi. viii, fig. 6 466-468 



Chranatocrinus, Trocst 468 



G.melonoides, M. &. "W., 1869, pl.ix, fig. 1 . 468-470 



G.pisum, M. & W.,1869, pi. ix, fig.4 470-471 



G.neglectus, M. &, W., 1869, pi. ix, fig. 3 471-473 



G.norwoodi, 0. & S., .sp., 1850, pi. ix, fig. 2 473 



PalcechiniiK, McCoy 473 



P. gracilis, M. & W., 1869, pi. x, fig. 2 173-474 



Onychaster, M. & W 474-475 



O.harrisi, Hall, sp., 1861, pi. x, fig. 1 476 



Oligoporus, Meek & Worthen 476 



O.nobilis, M. & W., 1868, pi. xi, fig. 3 476-478 



Hocidaris 478 



E. ? squamosals, M. & "W., 1869, pi. ix, fig. 15 478-482 



FOSSILS OF THE KEOKUK GROUP. 



Barycrinus, Wachs 483 



B.magnifi.evs, M. & W., 1868, pi. xii, fig. 2 483-485 



B. geometrieus, M. & W., pi. xii, fig. 3 485 



B. hoveyi, var. hurctdeus, M. & W. , 1868, pi. xiii, fig. 2 485-486 



B.hoveyi, Hall, sp., 1861, pi. xiii, fig. 1 486 



B.mammatus, Worthen MSB., pi. xv, fig. 4 486 



B. pentagonus, Worlhen MSS., pi. xv, fig. 3 487 



B.suhtumidus. M. <fc W., pi. xiii, fig. 3 487-488 



Cyathocrinitesl poterium, M. & "W"., 1870, pi. xii, fig. 4 489-490 



Poteriocrinites - 490 



P. (Zeacrimisl) concinnus, M. &"W., 1870, pi. xiv, fig. 3 490-492 



Subgenus Scaphiocrinus 492 



P. (Scaphiocrinus) deprcssus, M. & W., 1870, pi. xiv, fig. 8 492-493 



P. (Scaphiocrinus) unicus, Hall, 1861, pi. xv, fig. 5 493 



P. {Scaphiocrinus) cequalis, Hall, 1861, pi. xv, fig. 6 494 



P. (Scaphiocrinus) coreyi, M. & W., 18G9, pi. xv, fig. 1 494-495 



P. (Scaphiocrinus) meadamsi, Worthen MSS., pi. xv, fig. 2 495-496 



Forhesiocrinus luorthcni. Hall, 1858, pi. xiv, fig. 2, and pi. xv, fig. 7 496-498 



Onychocrinus exculptus, L. ifc C, 1859, pi. xiv, fig, 4 498 



Agaricoerinus, Troost 499 



A. u'Jiitfieldi, Hall, 1868, pi. xii, figs. 1 a,b, and pi. xv, fig. 8 499-500 



Dichocrinvs, Munster 500 



D. expansile, M. & W., 1868, pi. xiv, fig. 1 500-502 



n.ficus, C. & L., 1860, pi. xiv, fig. 5 502 



Calceocrimm, H.all 502 



C. bradleyi, M. & W., 1869, pi. xiv, fig. 9 502-504 



Catillocrinus, Troost 504 



G. bradleyi; M. & W., 1868, pi. xiv, fig. 10 504-505 



Platycriniles 506 



P. hemisphericus, M. & W., 1865, pi. xvi, figs. 6 a~e 506 



Pentrcmites 506 



P. wortheni, Hall? 1858, pi. xiv, fig. 11 '. 506 



P. (Troostocrinus ?) woodmani, M. & W., 1868, pi. xvi, fig. 4 506-508 



Granatocrinus 508 



G. granulosus, M. & W., 1865, pi. xv, fig. 10 .' 508-509 



Protaster, Forbes 509 



P. ? gregarius, M. & W., 1869, pi. xvi, fig. 5 509-510 



Onychaster, M. & W 510 



O.Jlexilis, M. & W., pi. xvi, fig. 3 510 



Pholidocidaris, M. &, W., 1869 510-511 



P. irregularis, M. &, W., 1869, pi. xv, fig. 9 512-513 



Agelacrinites, Vanuxem 513 



A. (Lepidodiscus) squamosus, M. & W„ 1868, pi. xvi, fig. 1 ., 513-515 



