334 Fortt- fifth Report on the State Museum. 



PAGE. 



68. Billingsella, gen. nov 230, 231 



69. Protorthis, gen. nov . 231-232 



70. Clitambonites, Pander, 1830 233-239 



Orthisina, d'Orbigny, 1847. 



71. Hemipronites, Pander, 1830. 



72. Gonambonites, Pander, 1840. 



73. Polytoechia, sub-gen. nov 239, 240 



74. Scenidium, Hall, 1860 241-243 



Mystrophora, Kayser, 1871. 



75. Orthidium, gen. nov 244 



76. Strophomena, Rafinesque (de Blainville), 1825 245-252 



77. Orthothetes, Fischer de Waldheim, 1830 253-257 



78. Hipparionyx, Vanuxem, 1842 257-259 



79. Kayserella, gen. nov 259, 260 



80. Derbya, Waagen, 1884 , 260-263 



SI. Meekella, White and St. John, 1868 264-266 



82. Streptorhynchus, King, 1850 267, 268 



83. Triplecia, HaU, 1858 269-271 



Dicraniscus, Meek, 1872. 

 64. Mimulus, Barrande, 1879 , 272, 273 



84. Streptis, Davidson, 1881 274 



86. Leptaena, Dalman, 1828 276-280 



Leptagonia, McCoy, 1844. 



87. Rafinesquina, gen. nov 281-283 



88. Stropheodonta, Hall, 1852 284-289 



89. Pholidostrophia, sub-gen. nov 287 



90. Leptostrophia, sub-gen. nov 287, 288 



91. Brachyprion, Shaler, 1865 288 



92. DouviUina, (Ehlert, 1887 288, 289 



93. Strophonella, Hall, 1879 galley proof. 



94. Amphistrophia, sub-gen, nov do 



95. Leptella, gen. nov do 



96. Leptsenulopsis, Haupt, 1878 (??) do 



97. Plectambonites, Pander, 1830 do 



98. Christiania, gen. nov do 



99. Leptsenisca, Beecher, 1890 •, do 



100. Davidsonia, Bouchard, 1849 do 



101. Chonetes, Fischer de Waldheim, 1837 do 



102. Anoplia, sub-gen. nov do 



103. Chonetina, Krotow, 1888 do 



104. Chonostrophia, gen. nov do 



105. Chonopectus, gen. nov do 



106. Chonetella, Waagen, 1884 do 



107. Strophalosia, King, 1844 do 



Leptcenalosia, King, 1845. 

 Orthrothrix, Geinitz, 1847. 



108. Daviesiella, Waagen, 1884 do 



109. Aulosteges, von Helmerson, 1847 do 



