PAGE 
Mytilus 158 
— _ septifer 161 
—- squamosus 159 
Natica 212 
—  Leibnitziana 212 
— minima 212 
Naticidee 212 
Nautilide 218 
Nautilus 4 219 
—  Bowerbankianus . 220 
—  Freieslebeni 219 
Neuropteris 5 
—  Hauttoniana . 6 
Nucula 175 
—  Tateiana 175 
Nuculidee 174 
Nudibrachiata 21 
Orbicula 84 
Orthis 105 
Orthisina se l0S 
Ostracada 60 
Paleeoniscus 222 
— catopterus 226 
— comtus 223 
— elegans 223 
— glaphyrus 224 
— longissimus 225 
-— macropthalmus 225 
Palzeosaurus 239 
— cylindrodon . 240 
— platyodon 239 
Palliobranchiata 5 67 
— (apophysary system of) 69 
— (branchial system of) 77 
— (classification of) 81, 244 
— (dental system of . : 67 
ue (histology of) 91, 110, 117, 124, 244 
— (muscular system of) 73 
Pecten 152 
— pusillus 153 
Pectenide 152 
Pentamerus 68, 117 
Petraia 23 
—  profunda 24 
Pholadomyide 195 
Phyllopa 64 
Phyllopora 40 
— Ehrenbergi 43 
Pisces 221 
Placoidei 221 
Platysomus 227 
— macrurus 227 
— striatus . 231 
Platystrophia . 106 
Pleurophorus 180° 
— costatus 181 
Pleurotomaria 213 
— antrina C 215 
INDEX. 
Pleurotomaria Linkiana 
— nodulosa 
— Tunstallensis 
Pleurotomariidz 
Productidee 
Productus 
— (internal structure of) 
— (muscular system of) 
— horridus . 
— umbonillatus 
Polyccelia 
Polyparia 
Polyplaxiphoria 
Polypodiacez 
Polysiphonia : 
— (?) Sternbergiana 
Psammobia : 
— (?) subpapyracea 
Psammobiidee oO 
Pycnodontide 
Pygope 
Pygopterus 
— latus 
_ mandibularis 
Radiata 
Reptilia . 
Retzia 
Rhynchora 
Rhynchoride 
Rhynconella 
Rissoa 
— Gibsoni 
— Leighi 
— obtusa 
Sarcicobrachia 
Sauroidei 
Schizodus 
— _ obscurus . 
—  rotundatus 
— Schlotheimi 
— truncatus 
Schizophoria 
Sclerobrachia 
Scyphia . : 
—  tuberculata 
Serpula (?) pusilla 
Sigillarales 
Sigillaria . 
=e) 
Sigillariaceze 
Solemyidee 
Solemya 
— __ biarmica 
—  Phillipsiana 
Spirifer . 
Spiriferidee é 
— (apophysary system of) 
_ (histology of) 
hh 
141, 244 
22 
69, 122, 245° 
124 
