Report op tee State Geologist. 



47 



101. Syntrielasma, Meek and 



Worthen, 1865. 



102. Protortliis, gen. nov. 



103. Billing'sella, gen. nov. 



104. Scenidium, Hall, 1860. 



105. Mystropliora, Kayser, 1871. 



106. Clitambonites, Pander, 1830. 



107. Pronites, Pander, 1830. 

 108/ Gonambonites, Pander, 1830. 



109. Hemipronites, Pander, 



1830. 



110. Orthisina, d'Orbigny, 



1847. 



111. Polytoechia, gen. nov. 



112. Orthidium, gen. nov. 



113. Strophomena, Eaflnesque, 1825. 



114. Orthothetes, Fischer de Wald- 



heim, 1829. 



115. Hipparionyx, Vanuxem, 1842. 



116. Derbya, Waagen, 1884. 



117. Kayserella, gen. nov. 

 118. 



119. Meekella. White and St. John, 



1868. 



120. Streptorhynchus, King, 1850, 



121. Triplecia, Hall, 1859. 



122. Dicraniscus, Meek, 1872. 



123. Mimulus, Barrande, 1879. 



124. Streptis, Davidson, 1881. 



125. Leptella, gen. nov. 



126. Leptaenulopsis, Haupt, 1878. 



127. Leptsena, Dalman, 1828. 



128. Leptagonia, McCoy, 1844. 



129. Rafinesquina, gen. nov. 



130. Strophodonta, Hall, 1850. 



131. Douvillina, (Ehlert, 1887. 



132. Bracliyprion,Shaler,1865. 



133. Leptostrophia, sub-gen. nov. 



134. Amphistrophia, sub-gen. nov. 



135. Strophonella, Hall, 1879. 



136. Plectambonites, Pander, 1830. 



137. Leptcena, Davidson, 1856. 



138. Christiania, gen. nov. 



139. Davidsonia, Bouchard, 1849. 



140. Leptaenisca, Beecher, 1890. 



141. Chonetes, Fischer deWaldheim. 



142. Chonetina, Krotow, 1888. 



143. Anoplia, gen. nov. 



144. Chonostrophia, gen. nov. 



145. Chonopectus, gen. nov. 



146. Chonetella, "Waagen, 1884. 



147. Daviesiella, Waagen, 1884. 



148. Strophalosia, King, 1844. 



149. Leptcenalosia, King, 1845. 



150. Orthrothrix, Geinitz, 1847. 



151. Aulosteges, von Helmersen, 



1847. 



152. Productus,Sowerby, 1812. 



153. Productella, Hall, 1867. 



154. Marginifera, Waagen, 



1884. 



155. Proboscidea,GEhlert,1887. 



156. Etheridgina, CEhlert, 



1887. 



[The genera in the remainder of this list have not yet been 

 critically studied. It is therefore not the intention to express the 

 respective values of the terms given below. The list will serve to 

 indicate the amount of work still necessary to complete the 

 revision of the palaeozoic genera of Brachiopoda.] 



157. Eichwaldia, Billings, 1858. 



158. Dictyonella, Hall (MS.), 1867. 



159. Aulacorhynchus, Dittmar, 1872. 



160. Isogramma,Meek and Worthen, 



1873. 



161. Spirifer, Sowerby, 1815. 



162. Trigonotreta, Konig, 1825. 



163. Choristites, Fischer de Wald- 



heim, 1825. 



164. Fusella, McCoy, 1844. 



165. Brachythyris, McCoy, 1844. 



166. Martinia, McCoy, 1844. 



167. Reticularia, McCoy, 1844. 



168. Delthyris, Dalman, 1828. 



169. Martiniopsis, Waagen, 1883. 



170. Ambocoelia, Hall, 1860. 



171. Spiriferina, d'Orbigny, 1847. 



172. Mentzelea, Quenstedt, 1871. 



173. Cyrtia, Dalman, 1828. 



174. Cyrtina, Davidson, 1858. 



175. Syringothyris, Winchell, 1863. 



176. Athyris, McCoy, 1844. 



177. Spirigera, d'Orbigny, 1847. 



178. Seminula, McCoy, 1844. 



