432 INDEX. 



PAGE. 



Modiolopsis modiolaris 83 



pholadiformis 85 



truncata 86 



Molgophis brevieostatus 369 



macrurus " 368 



Wheatleyi 368 



Newberry, J. S., on fossil fishes 3 



Niagara group, corals of 229 



fossils of 121 



Oestocephalus 380 



remex.... 381 



rectidens 386 



Orodus elegantulus 51 



variabilis 50 



Orthacanthus gracilis s 56 



Orthis clytie 75 



ella 76 



Jamesi..... 77 



(^rthoceras annulatum 147 



Carleyi 98 



crebesoens 148 



Duseri 97 



Jamesi ! 118 



strix 149 



turbidum 100 



Orthodesma contracta 95 



curvata 96 



parallela 96 



recta 94 



Orthogoniopteris 418 



Clara 419 



Gilberti 420 



Pal;eoneilo Bedfordensis 298 



Paleophyllum divaricans 220 



Pelion Lyellii 390 



Pentamerus oblongus 138 



pergibbosus 139 



ventricosus 138 



Pentremites sub-cylindrica 129 



Peplorhina anthracina 410 



Petalodus Alleghaniensis 52 



Phyenopora expansa 114 



Phillipsastrtea gigas , 241 



Phillipsia Lodiensis 323 



Phlegethontia 366 



