INDEX 



385 



Ptilodictya, 195 

 Ptilograptus, 55 

 Ptychites, 287 



Pugnax, 182 

 Pulmonary sacs, 270 

 Pulmonata, 250, 254 

 Purpura, 246 

 Purpurina, 254 

 Purpuroidea, 242 

 Pygaster, 129 

 Pygidium, 292, 297 

 Pygocephalus, 325 

 Py gurus, 134 

 Pyrula, 255 



Quenstedtoceras, 287 

 Quiuquehculina, 22 



Radial plates, 114, 139, 149 



„ symmetry, 105 

 Eadiolaria, 28-30 

 Eadiolarian ooze, 29 

 Eadiole, 122 

 Badiolites, 222 

 Eadula, 232 

 Raphistoma, 254 

 Rastrites, 69 

 Ray, 107 



Eecapitulation theory, 13 

 Receptaculites, 47 

 Eed coral, 94 

 Eeef corals, 102 

 Eeflected lip (Gasteropoda), 235 

 Eegularia (echinoids), 125 

 Remopleurides, 295 

 Reniera, 41, 47 

 Requienia, 221 

 Retiolites, 69 

 Eetractor muscles, 203 

 Rhabdomeson, 193 

 Rhabdophyllia, 104 

 Rhacophyllites, 287 

 Rhaphidonema , 46 

 Rhipidomella, 177 

 Rhizocrinus, 145 

 Rhizophyllum, 92 

 Rhizostoma, 73 

 Rhizostomites, 73 

 PJiodocrinus, 146 

 Rhynchonella, 181 

 Rhynchotreta, 182 

 Eight valve, 208 



Rimella, 245 



Rissoa, 255 



Eoot (Crinoid), 137 



Eoot-tuft of Sponges, 34, 38 



Rostellaria, 244 



Eostral plate, 327 



Eostrum, 320 



Rotalia, 24 



Eugose corals, 83, 86, 88-92 



Saccammina, 22, 27 



Saccocoma, 146 



Saddles (Ammonoidea), 267 



Sageuocrinus, 144 



Salenia, 126 



Salterella, 256 



Sanguinolites, 229 



Sao, 311 



Sarcodina, 16 



S ax i cava, 226 



ScaZa, 241 



Scalaria, 241 



Scalpellum, 317 



Scaphella, 255 



Scaphites, 279 



Scaphopoda, 256 



Scenella, 254 



Schizaster, 132 



Schizoblastus, 155 



Schizodont, 203, 217, 230 



Schizodus, 217 



Schizophoria, 177 



Schizopoda, 323 



Schlcenbachia, 279 



Schlotheimia, 275 



Scorpionida, 350 



Scorpion-flies, 335 



Scrobicule, 122 



ScuZda, 327 



Scutum, 316 



Scyphomedusa?, 73 



Scyphozoa, 73 



Scytalia, 36, 43 



Sea-anemones, 50, 74, 75, 77 



Sea-cucumbers, 135 



Sea-lilies, 136 



Sea-urchins, 115-135 



Seliscothon, 36, 43 



Sepm, 280, 283 



Septa (Cephalopoda), 261 

 „ (Corals), 77, 79, 83 

 ,, (Foraminifera), 17, 18 



