166 



Forty- SIXTH Report on the State Museum, 



PAGE. 



22. Schmidtia, Volborth, 1869 ... . 83 



23. Monobolina, Salter, 1865 83 



24. Neobolus, Waa^en, 1885 84 



25. Spondylobolus, McCoy, 1852 . . 85 



26. Mickwitzia, Schmidt, 1888.. 86, 87 



27. Schizobolus, Ulrich, 1886. . . .87-90 



28. Discinolepis, tVaagen, 1885... 90 



29. Paterina,* Beecher 



80. Kutorgina, BiDings, 1861 ...90-94 



31. Schizopholis,Waagen, 1885..94, 95 



32. Volborthia, vonMoUer,1873.95, 96 



33. Iphidea, BiUings, 1872 97, 98 



34. Acrothele, Linnarsson, 1876.98-101 



35. Acrotreta, Kutorga, 1848 . .101-104 



36. Conotreta, Walcott, 1889.. 104, 105 



37. Discinopsis, Matthew, 1892. 



105, 106 



38. Linnarssonia,Walcott,1885. 107-109 



39. Mesotreta, Kutorga, 1848 109 



40. Siphonotreta, de Verneuil, 1845. 



110-113 



41. Schizambon, Walcott, 1884. 113-117 



42. Keyserlingia, Pander, 1861. 117-119 



43. Helmersenia, Pander, 1861 119 



44. Orbiculoidea, D'Orbigny, 1847. 



120-137 



45. (Ehlertella, nov 133 



46. Lindstroeinella, nov 134 



47. Schizotreta, Kutorga, 1848. 135 



48. Roemerella, nov . .' 137 



49. Trematis, Sharpe, 1847 . . . .138-142 

 Orhicella. D'Orbigny, 1847. 



50. Schizocrania, Hall and Whit- 



field, 1875 142-144 



51. Crania, Retzius, 1781 145-152 



Criopus, Poll, 1791. 

 Criopoderma, Poll, 1795. 

 Orbicula, Cuvier, 1798. 

 Orbicularius, Dumeril, 1806. 

 Craniolites, Schlotheim, 1820. 

 Choniopora, Schauroth, 1854. 

 Fseudocrania, McCoy, 1851. 



151, 152 

 Palceocrania, Eichwald, 1860. 



52. Craniella, CEhlert, 1888 153 



53. Cardinocrania, Waagen. 1885. 154 



54. Pholidops, Hall, 1858 155-159 



55. 



56. 

 57. 



58. 

 59. 

 60. 



61. 



62. 

 63. 



64. 

 65. 



66. 



67. 

 68. 



69. 



70. 

 71. 



72. 



73. 



74. 



75. 

 76. 



77. 



PAGE. 



II. Brachiopoda Articulata. 



185-867 



Orthis, Dalman, 1828 186-229 



Orthis, Dalman, 1828, 



sensu stricto 192-194 



Orthambonities, Pander, 

 1830. 



Plectorthis, nov 194, 195 



Dinorthis, nov 195, 196 



Plsesiomys, nov. . . . 196, 197 



Hebertella, nov 198, 199 



Orthostrophia, Hall, 



1883 199, 200 



Platystrophia, King, 



1850 200-202 



Heterorthis, nov... 202, 203 

 Bilobites, Linne, 1775. . . 204 



205 

 Dicoelosia, King, 1850. 



Dalmanella, nov 205-207 



Rhipidomella, QEhlert, 



1890 208-211 



Rhipidomys, CEhlert, 1887. 

 Schizophoria, King, 1850. 



211-213 

 Orthotichia, nov. . . 21g, 214 

 Enteletes, Fischer de 



Waldheim, 1830.. 214-217 

 Syntrielasma, Meek and 

 Worthen, 1865. 



BiUingseUa, nov 230, 231 



Protorthis, nov 231-233 



CUtambonifes, Pander, 1830. . 



233-239 

 Pronites, Pander, 1830. 

 Gonamhonites, Pander, 1830. 

 Orthisina, D'Orbigny, 1847. 



Hemipronites, Pander, 



1830 238 



Polytoechia, nov. . . 239, 240 



Scenidium, Hall, 1860 241-243 



Mystrophora, Kayser, 1871. 



Orthidium, nov 244 



Strophomena, Rafinesque (De 



BlainviUe) 245-252 



Orthothetes, Fischer de Wald- 

 heim, 1830 253-257 



* This genus has been erected since the first^'part of this volume was printed. 



