LIST OF PLATES. 



337 



Fm. Pao. 



Pi. KTK T)?. 



1 Emloceras proteil'orme . . 21iJ 



Pi. VTE fiS. 



1 Endoceras distans 220 



2 Ormoceras tcuuitilum ... 222 



Plate 59. 

 Endoceras proteiforme, 



PL.A.TE CI. 



1 Asaphus.' nodostriatus... 248 



2 Ceraurus? pustulosus . 24G 



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 pleurexanthemus, 242 



2 — vigilans 245 



3 Phacops callicephalus . . . 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 



[ PAL.SONTOLOGV.] 



Fio. Pas. 



Plate 67. 



1 Trinucleus concentricus . 255 



2 Olenus asaphoides 256 



3 — undulostriatus . . 258 



4 Calymene becUii 2.")0 



5 Agnostus lobatus 2.58 



6 Thaleops (lUaenus) ovatus,25'J 



Plate 68. 



1 Sphenothallns angustil'i)lius,26l 



2 — latifolius 262 



3 Buthotrephis subnodosa.. 262 



Plate 69. 

 1 Buthotrephis.' flexuosa .. 263 



Plate 09 a. 

 1 Buthotrephis flexuosa ... 263 



Plate 70. 



1 Pateophycus virgatus. ... 263 



2 — {sp. indtt.) 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 — furcalus 273 



5 — serratulus 274 



6 — gracilis 274 



7 — livis 274 



S — arundinaceus. 



Plate 75. 



1 Favistella stellata 275 



2 Chvetetes lycoperdon .... 276 



3 Discophyllum peltatum .. 277 



4 {Indeterminate) 277 



Pl.vte 76. 



1 Heterocrinus heterodactylus, 279 



2 — simplex 280 



3 — .' gracilis 280 



43 



Fio. Pio. 

 Plate 77. 



1 Glyptocrinus decadactylu8,2bl 



Plate 7S. 



1 Glyptocrinus decadactylus,28l 



2 Tentaculites flexuosa .... 284 



Plate 79. 



1 Lingula ((Uadrata 285 



2 I.,eptiKna alternata 2b6 



3 — sericea 287 



4 Orthis testudinaria 2">8 



5 — ? erratica 2>!S 



5* — centrilineata 2NU 



ti .\trypa incrubesceus .... 2^9 



7 Orbicula .' subtruncata . . 2'JO 



8 — .' crassa 290 



y — caelata 290 



Plate SO. 



1 Avicula insueta 291 



2 — demissa 292 



3 — ? desc|uamata .... 292 



4 Ambonycliia radiata . . 292 



5 — carinata 294 



Plate 81. 



1 Modiolopsis modiolaris .. 294 



2 — iiasutus 296 



3 — truncaliis 296 



4 — curta 297 



5 — (up. indtt.) 297 



Plate 82. 



1 Modiolopsis modiolaris . . 294 



2 — curta 297 



3 — anodontoides . . . 298 



4 — faha 298 



5 — .' nuculiformis ... 298 



6 Orthonota pholadis 299 



7 — parallcla 299 



S — contracta 300 



9 Cleidophorus planulatus . 3o0 



10 Nucula ? poststriata 301 



1 1 Lyrodcsma plana 3ij2 



12 — pulchella 3o2 



Plate 83. 



1 Murchisonia gracilis .... 303 



2 — uniangulata, 



car. abbreriata, 304 



3 Pleurotomaria subconica . 304 



4 _[!] bilix 303 



5 _ (»p. indet.) 305 



6 Metoptoma .' rugosa 306 



