Report of the State Geologist. 333 



PAGE. 



(5) L. taeniola (nom. nov.) 173 



(6) L. lingulata 173 



(7) Lingulops Granti 173 



(8) Monomerella Greenii 174 



(9) M. Kingi 174, 175 



(10) M. Ortoni 175 



(11) M. Egani 175, 176 



(12) Rhinobolus Davidsoni 176 



(13) Siphonotreta (?) Minnesotensis 177 



(14) Orbiculoidea (Schizotreta) ovalis 177 



(15) Orbiculoidea numulus 178 



(16) O. Herzeri 178 



(17) Lindstroemella aspidium 178, 179 



(18) Schizocrania Schucherti 179 



(19) Schizocrania (?) Helderbergia 179, 180 



(20) Crania agaricina 180 



(21) C. pulchella 180 



(22) C. granosa 180 



(23) C. favincola 181 



(24) Craniella Ulrichi 181 



(25) Pholidops calceola . 182 



(26) P. patina 182 



Supplementary Note on the Genus Kutorgina 183 



II. 



Brachiopoda Articulata 185, 186 



Orthis, Dalman, 1828 186-192 



54. Orthis, Dalman, as restricted 192-194 



Orthambonites, Pander, 1830. 



55. Plectorthis (nom. propos.) 194, 195 



56. Dinorthis (nom. propos.) 195, 196 



57. Plaesiomys (nom. propos.) 196, 197 



58. Hebertella (nom. propos.) 198, 199 



59. Orthostrophia, Hall, 1883 199, 200 



60. Platystrophia, King, 1850 200-202 



61. Heterorthis (nom. propos.) 202, 203 



62. Bilobites, Linne, 1775 204, 205 



Dicoelosia, King, 1850. 



63. Dalmanella (nom. propos.) 205-207 



64. RhipidomeUa, (Ehlert, 1890 208-211 



65. Schizophoria, King, 1850 211-213 



66. Orthotichia (nom. propos.) 213, 214 



67. Enteletes, Fischer de Waldheim, 1830 214-217 



Syntrielasma, Meek, 1865. 



Observations on Orthis 217-220 



list of Genera and Species 220-226 



Supplementary Note on Orthis 227-229 



