INDEX. 433 



PAGE. 



Phlegethontia linearis 367 



serpens 367 



Phragmoceras ellipticum 150 



parvum 151 



Placunopsis recti cardinalis 331 



Platyceras Lodiense 313 



tortiim 345 



Platycrinns Bedfordensis 161 



contritus 166 



grapiiicus 166 



Lodiensis 168 



prpematurus ^24 



Richfieldensis 167 



Platyodiis lineatus 58 



Pleurophorus tropidopliorus 338 



Pleuroptyx clavatus 370 



Pleurotomaria inexpectans 117 



occidens 142 



textiligera 314 



Plumulites Jamesi 106 



Polyrhizodus modestus 50 



Polyzoa of Coal Measure strata 326 



Silurian formations 259 



Poteriocrinus corycia 173 



crineus 172 



pleias 173 



Posidonomya 333 



Proetus parviusculus 109 



Productus, Coal Measure species 282 



Promacrus Andrews! 308 



Protarea 221 



Prothyris Meeki 305 



Pterinea demissa 78 



Ptilodictya arctipora 262 



carbonaria 328 



emacerata 261 



falciformis 259 



fenestelliformis 263 



flagellum 262 



Ptyctodus calceolus 59 



Ptyonius 373 



Marshii 375 



nummifer 374 



• pectinatus 377 



serrula 379 



Vinchellianus 376 



