﻿1130 
  Forty-seventh 
  Report 
  on 
  the 
  State 
  Museum, 
  

  

  Family 
  Tbeebratbllid^e, 
  King. 
  

  

  Terebratella, 
  d'Orbigny, 
  1847. 
  

  

  Waltonia, 
  Davidson, 
  1850. 
  

   Terebratalia, 
  Beecher, 
  1893. 
  

   Laqueus, 
  Dall, 
  1870. 
  

  

  Frenula, 
  Dall, 
  1871. 
  

   Trigonosemus, 
  Koenig, 
  1825. 
  

   Kingena, 
  Davidson, 
  1852. 
  

   Lyra, 
  Cumberland, 
  1816. 
  

  

  Terebrirostra, 
  d'Orbigny, 
  1847. 
  

   Magellania, 
  Bayle, 
  1880. 
  

  

  Waldheimia, 
  King, 
  1850. 
  

  

  Neothyris, 
  Douville, 
  1880. 
  

   Macandrevia, 
  King, 
  1859. 
  

   Zeilleria, 
  Bayle, 
  1878. 
  

   Fimbriothyris, 
  Deslongchamps, 
  1884. 
  

   Antipty 
  china, 
  Zittel, 
  1883. 
  

   Microthyris, 
  Deslongchamps, 
  1884. 
  

  

  Ornithella, 
  Deslongchamps, 
  1884. 
  

   Eudesia, 
  King, 
  1850. 
  

  

  Flabellothyris, 
  Deslongchamps, 
  

   1884. 
  

   (?) 
  Orthotoma, 
  Quenstedt, 
  1871. 
  

   Aulacothyris, 
  Douville, 
  1880. 
  

   (?) 
  Epicyrta, 
  Deslongchamps, 
  1884. 
  

   (?) 
  Plesiothyris, 
  Douville, 
  1880. 
  

   (?) 
  Camerothyris, 
  Bittner, 
  1890. 
  

   (?) 
  Orthoidea, 
  Frirer, 
  1875. 
  

   Dallina, 
  Beecher, 
  1893. 
  

   Ismenia, 
  King, 
  1850. 
  

   Magasella, 
  Dall, 
  1870. 
  

   Tropidoleptus, 
  HaU, 
  1857. 
  

   Platidia, 
  Costa, 
  1852. 
  

  

  Morrisia, 
  Davidson. 
  1852. 
  

  

  Family 
  Magasidje, 
  d'Orbigny. 
  

  

  Magas, 
  Sowerby,' 
  1816. 
  

   Bouchardia, 
  Davidson, 
  1849. 
  

   Miihlfeldtia, 
  Bayle, 
  1880. 
  

   Megerlia, 
  King, 
  1850. 
  

  

  Rhychora, 
  Dalman, 
  1828. 
  

   Rhynchorina, 
  CEhlert, 
  1887. 
  

   Mannia, 
  Dewalque, 
  1874. 
  

  

  Family 
  Stringocephalid^e, 
  Dall. 
  

  

  Stringocephalus, 
  Defrance, 
  1827. 
  

   Family 
  Megathyredjs, 
  (Ehlert. 
  

  

  Megathyris, 
  d'Orbigny, 
  1847. 
  

  

  Argiope, 
  Deslongchamps, 
  1842. 
  

   Cistella, 
  Gray, 
  1850. 
  

  

  Zellania, 
  Moore, 
  1854. 
  

   Gwynia, 
  King, 
  1859. 
  

  

  Sub-order 
  HELICOPEGMATA 
  or 
  SPIRIFERACEA, 
  

  

  Waagen. 
  

  

  Family 
  Atrypidje, 
  Dall. 
  

  

  Hallina, 
  N. 
  H. 
  Winchell 
  and 
  Schu- 
  

  

  chert, 
  1892. 
  

   Protozyga, 
  Hall, 
  1893. 
  

   (?)Cyclospira, 
  HaU, 
  1893. 
  

   Zygospira, 
  Hall, 
  1862. 
  

  

  Anazyga, 
  Davidson, 
  1882. 
  

   Orthonomsea, 
  Hall, 
  1858. 
  

  

  Catazyga, 
  Hall, 
  1893. 
  

  

  Glassia, 
  Davidson, 
  1882. 
  

  

  Atrypina, 
  Hall, 
  1893. 
  

  

  (?) 
  Clintonella, 
  Hall, 
  1893. 
  

  

  Atrypa, 
  Dalman, 
  1828. 
  

  

  Karpinskia, 
  Tschernyschew, 
  1885. 
  

  

  Gruenewaldtia, 
  Tschernyschew, 
  1885. 
  

  

  Family 
  Spikiferinid^, 
  Davidson. 
  

  

  Cyrtina, 
  Davidson, 
  1858. 
  

   Bittnerula, 
  gen. 
  nov. 
  

   Thecocyrtella, 
  Bittner, 
  1892. 
  

  

  Cyrtotheca, 
  Bittner, 
  1890. 
  

   Spiriferina, 
  d'Orbigny, 
  1847. 
  

   Suessia, 
  Deslongchamps, 
  1854. 
  

   188 
  

  

  