WRITINGS OF F. B. MEEK AND A H. WORTHEN. 59 



Pago. 



Grammy sia, de Vemeuil, 1847 439 



G. 9 rhomboidalis, M. <fc W., 1865, pi. xi, tigs. 5 a, b 439-441 



Gasteropoda 441 



Plati/teras, Comad, 1840 - 441 



P. i'e/ifricos?()(!, Coniad, 1840, pi. xi, ligs. 4 a, b 441-442 



Iso7iema* M. & W., 1865 442-443 



I. depressa, M. & W., 18C5, p. 413, figs. A, B, and pi. xi, fig.s. Ga,b 443 



Cephalopoda 444 



Gomphoceras, Sowevby, 1839 444 



G. turbiniforme, M. & W., 186G, pi. xii, flgs. 2 a, & 444 



Cyrtoccrd*, Goldf. 18.32 445 



0. sacculum, M. & W., ] 866, pi. xii, figs. 3 a-c 445-446 



Gyroceras, de Kouinck, 1844 446 



G. constrictum., n. s., M. & W., 1866, pi. xii, figs. la,b 446-447 



Articulata 447 



Crustacea 447 



Phacops, Emmerich, 1839 447 



P. rana. Green, sp., 1832. pi. xi, figs. 1 a-e 447-449 



Cauhonifeuous Species. 



fossils of the kindbrhook guoup. 



MoUvsca 450 



Brachiopoda 450 



Rhynchonella, Fisher, 1809 450 



R. missouriensis, Shuraard, 1855, pi. xiv, figs. 7 a~d 450-452 



JLamellibranchiata 453 



Pernopccten, WinchoU, 1865 453 



P. «/mj«ardi«nMS, Winchell, 186.5, pi. xiv, figs. 6 a,b. 453^55 



Pierinea, Goldf., 1832 456 



P. Mn(h«?a/a, n. s., M. & W., 1SG8, pi. xiv, fig. 5 456 



Gasteropoda 457 



Platyceras, Conrad, 1840 457 



P. ( Orthonychia ?) subplicatum, M. & "W., 1866, pi. 14, figs. 4 a-c 457 



P. AaKotoides, M. & W., 1866, pi. xiv, figs. 3 a, & 458 



PorceHia, Leveille, 1835. 458 



P. nodosa. Hall, 1860, pi. xiv, figs. 1 a, & 458-459 



Gyroceras, de Koninck, 1844 459 



G. rockfordensis,M. & W., 1866, pi. xiv, fig. 2 a 459-460 



Articulata 460 



Crustacea 460 



Proetus, Steininger, 1 830 ? 460 



P. «i2ipticM«, M. & W., 1865, pi. xiv, fig. 8 460-462 



FOSSILS OF THE BURLINGTON GROUP. 



Radiata 463 



Echinodermata 463 



Belemnocrinus, Whil e, 1862 463 



£. wldtii, M. & W., 1 866, p. 463, fig. — , and pi. xviii, fig. 4 o-c 463^64 



Catilloerinus. Troost, 1850 465 



C. wachsmuthi, M. & W., 186G, pi. xviii, fig. 5 465-466 



Platycrinus, Miller, 1821 -" 46fi 



P. scuhina, M. & W., 1861, p. 466, fig. — , and pi. xvi, fig. 9 466-467 



P. planus, Ovren &. Shumard? 1850, pi. xvi, flg, 6 467-468 



P. (Pleuroerinus) as^jcr, M. & W., 1861, p. 408, fig. —, and pi. xviii, fig. 9 408-469 



Actinucrinus, Miller, 1821 470 



A. (Saccocrimis ?) amplus, M. & W., 1861, p. 470, fig. — , and pi. xvi, fig. 2 470-472 



A. (Batocrinus) pUtillus, M. & W., 1865, pi. xvi, figs. 4 a, 6 472-474 



Steganocrinus,M. & "W., 1866 4'''4 



iS. pentagonus. Hall, sp., 1858, pi. xvi, fig. 8 474-476 



P/todocriHMg, Miller, 1821 476 



R. nanus, M. & W., 1860, p. 476, figs. — , and pi. xviii, figs. 2 a, 6 476-478 



PMrsacri7i««,t M. & W., 1861 478 



B. wachsmuthi, M. & W., 1861, pi. xvii, fig. 6, and p. 479, fig. — 479-480 



' i<7oi, equal; vitixa, a thread. t/3vp<ra, a purse; XP'*'"". a lily. 



