State Museum of Natural History. 23 



Species. Examples. 



61. Goniophora speciosa, Hall, type 1 



62. Conularia infrequens, type 1 



63. Strophostylus cyclostomus, Hall, a series from small to large 



individuals 12 



64. Strophostylus cyclostomus, Hall, showing columella 2 



65. " " " var. with elevated spire. . . 4 



66. Platystoma Niagarense, Hall, a series showing gradation in 



size 10 



67. Platystoma Niagarense, Hall, showing form of aperture 2 



68. " " " var. with last volution free for 



a portion of its extent 2 



69. Two slabs containing Platystoma Niagarense 2 



70. Platystoma plebeium, Hall 1 



71. Cyrtolites sinuosus, Hall , 1 



72. Orthoceras annulatum, Sow., typical 1 



73. ' " " 1 



74. ' i " typical longitudinal section 1 



75. " " bedded in shale 1 



76. " " compressed specimen , 1 



77. " " small specimen 1 



78. ' ' medullare, Hall, longitudinal section 1 



79. !i simulator, Hall, typical 1 



80. « " " 4 



81. Trochoceras Waldrenense, Hall 2 



82. Orthoceras Amycus, Hall (type) , 1 



83. Nautilus Oceanus 1 



84. Crania Siluriana, Hall ; three specimens on Eucalytocrinus 



crassus, one specimen on Platystoma Niagarense, two 



specimens on Meristina Maria 4 



85. Strophemena rhomboidalis, "Wile, seven specimens showing 



exterior form, three specimens snowing muscular markings 



on interior of valves 10 



86. Strophodonta striata, Hall 5 



87. Meristina Maria, Hall, series showing gradation in form and 



size 11 



88. Meristina nitida, a series showing gradation in form and size, 18 



89. Strophodonta profunda (typical) 1 



90. Streptorhynchus tenuis, Hall 1 



91. Rhynchonella Stricklandi, in series 15 



92. " Whitii, in series '. . , 21 



93. " acinus, in series 16 



94. " neglecta, in series, 1 type of var 19 



95. " Indianensis, in series, 3 types of var 18 



96. Meristella rectirostra, Hall (types) 12 



97. Leptaena transversalis, Wahl 2 



98. Rynchonella Stricklandi with Favosites Forbesi, var. occi- 



den talis, Hall 1 



99. Spirifera radiata with Platystoma Niagarense ... 1 



100. Spirifera radiata, Sowerby, in series ; 12 



101. " eudora, Hall 2 



102. " crispa, Hisinger, in series 19 



103. " " var. simplex, in series 9 



