LIST OF PLATES. 
387 
Fta. Pag. 
Plate 57. 
1 Endoceras proteiforme .. 210 
Plate 58. 
1 Endoceras distans . 220 
2 Ormoceras tenuifilum ... 222 
Plate 59. 
Endoceras proteiforme, 
1 var. tenuitextum.... 217 
2 var. tenuistriatum... 217 
3 var. lineolatum.217 
4 Conularia trentonensis... 222 
5 — granulata .223 
6 — papillata.223 
7 — gracile. 224 
Plate 60. 
1 Ogygia ? vetusta. 227 
2 Asaphus ? extans .228 
3 Calymene multicosta .... 228 
4 Illaenus crassicauda.229 
5 — trentonensis.... 230 
0 — latidorsata.230 
7 Isotelus gigas .231 
Plate 61. 
1 Asaphus? nodostriatus... 248 
2 Ceraurus? pustulosus.... 246 
3 Isotelus gigas .233 
Plate 62. 
1 Isotelus gigas .233 
Plate 63. 
1 Isotelus gigas . 234 
Plate 64. 
1 Platynotus trentonensis .. 235 
2 Calymene beckii. 237 
3 — senaria. 238 
4 Acidaspis trentonensis .. 240 
5 — spiniger.241 
6 Phacops ? laticaudus .... 248 
Plate 65. 
1 Ceraurus pleurexantliemus, 242 
2 — vigilans. 245 
3 Phacops calliceplialus ... 247 
4 Trinucleus concentricus . 249 
Plate 66. 
1 Ceraurus pleurexanthemus, 243 
2 Calymene beckii .. 250 
3 — {sp. indet.) .... 253 
4 Asaphus? latimarginatus. 253 
5 Isotelus gigas . 254 
| Paleontology.] 
Fig. Pag. 
Plate 67. 
1 Trinucleus concentricus . 255 
2 Olenus asaphoides.. 256 
3 — undulostriatus .. 258 
4 Calymene beckii. 250 
5 Agnostus lobatus. 258 
6 Thaleops (Illsenus) ovatus, 259 
Plate 68. 
1 Sphenothallus angustifolius, 261 
2 — latifolius.262 
3 Buthotrephis subnodosa.. 262 
Plate 69. 
1 Buthotrephis ? tlexuosa .. 263 
Plate 69 a. 
1 Buthotrephis flexuosa ... 263 
Plate 70. 
1 Palseophycus virgatus.... 263 
2 — {sp. indet.) .... 264 
Plate 71. 
1, 2 Gordia marina. 264 
Plate 72. 
1 Graptolithus pristis. 265 
2 — secalinus .267 
Plate 73. 
1 Graptolithus mucronatus. 268 
2 — bicornis. 268 
3 — ramosus. 270 
4 —=■ scalaris ....... 271 
Plate 74. 
1 Graptolithus Sagittarius .. 272 
2 — tenuis.272 
3 — sextans. 273 
4 — furcatus . 273 
5 — serratulus.274 
6 — gracilis. 274 
7 — lsevis.274 
8 — arundinaceus. 
Plate 75. 
1 Favistella stellata ..275 
2 Chaitetes lycoperdon .... 276 
3 Discophyllum peltatum .. 277 
4 ( Indeterminate ).277 
Plate 76. 
1 Heterocrinus heterodactylus, 279 
2 — simplex. 280 
3 — ? gracilis. 280 
43 
Fio. Pag. 
Plate 77. 
1 Glyptocrinus decadactylus,281 
Plate 78. 
1 Glyptocrinus decadactylus,281 
2 Tentaculites flexuosa.... 284 
Plate 79. 
1 Lingula quadrata. 285 
2 Leptsena alternata.286 
3 — sericea. 287 
4 Orthis testudinaria. 288 
5 — ? erratica. 288 
5* — centrilineata.... 289 
6 Atrypa increbescens .... 289 
7 Orbicula ? subtruncata .. 290 
8 — ? crassa. 290 
9 — caelata. 290 
Plate 80. 
1 Avicula insueta. 291 
2 — demissa. 292 
3 — ? desquamata .... 292 
4 Ambonychia radiata ... 292 
5 — carinata. 294 
Plate 81. 
1 Modiolopsis modiolaris .. 294 
2 — nasutus. 296 
3 — truncatus.296 
4 — curta. 297 
5 — {sp. indet.) .... 297 
Plate 82. 
1 Modiolopsis modiolaris .. 294 
2 — curta.297 
3 — anodontoides .. . 298 
' 4 — faba. 298 
5 — ? nuculiformis .. . 298 
6 Orthonota pholadis.299 
7 — parallela. 299 
8 — contracta.300 
9 Cleidophorus planulatus . 3U0 
10 Nucula? poststriata.301 
11 Lyrodesma plana.. 302 
12 — pulchella.302 
Plate 83. 
1 Murchisonia gracilis .... 303 
2 — uniangulata, 
var. abbreviata, 304 
3 Pleurotomaria subconica . 304 
4 — [?] bilix. 305 
5 — {sp. indet .) .... 305 
6 Metoptoma ? rugosa .... 306 
