INDEX GÉNÉRIQUE DES ÉCHINODERMES 
489 
(Pisocrinidæ) 377 
Pisocrinus 377 
(Pithoclia, Pomel) = Discoidea 
(Placenta, Brisson) = Hotula 
Placocystis 407 
Placodiadema 232 = (Plesiodiadema) 
Plagiechinus 246 
(Plagiobrissus, Pomel) = Metalia 
(Plagiochasma, Pomel) = Echinobrissus 
(Plagionotus, Àgassiz et Desor) = Metalia 
(Plagiopatagas, Lütken) = Maretia 
Plagiopygus 204 
Platasterias 88 
Platybrissus 273 
(Platicrinidæ) 383 
Platycrinus 383= (Atocrinus? Brahmacrinus, 
Centrocrinus,Pachycrinus, Pleurocrinus) 
Platycrinusïnæ 383 
Platycystis 408 
Platysolenites 416 
(Platyspatus, Pomel) = Spatangus 
PlaLysphærites 395 
Pleetaster 101 
Plegiocidaris 228 
Pleiocyphus 238 
(Pleraster, Quenstedt) =Cyclaster 
Plesianthus 254 = (Echinanthus) 
(Plesiaster, Pomel) = Metalia ou Meoma 
Plesiechinus 249 
Plesiocidaris 234 
(Plesiodiadema, Duncan) = Placodiadema 
(Plesiodiadema, Pomel) = Aspidodiadema 
Plesiolampas 265 = (Hypopygurus) 
(Plesiocorys, Pomel) =IIolaster 
Plesiopatagus 268 
Plesiopeltis 233 
Plesiozonus 273 
Pleuraster 96 
Pleurechinus 241 
Pleurocidaris 228 
(Pleurocrinus, Austin) = Platycrinus 
Pleurocystis 411 
Pleurodiadema 238 
(Pleurosalenia, Pomel) = Salenia 
Plexechinus 267 
(Plicatocrinidæ) 393 
Plic'atocrinus 393 
Plinthaster 90 
Pliocyphosoma 238 
Pliolampas 265 
Plistophyma 238 
Plumaster 96 
Plutonaster 86 
(Plutonasteriuæ) 86 
Podasterias 103 
Podocidaris 237 
(Podophora, Agassiz) = Colobocentrotus 
(Polyaster, Michelin) = Rumphia 
Polyasterias 103 
(Polycerus, Fischer) = p. p. Pentacrinus 
Polycidaris 228 
Polycyphus 238 
(Polyodoatida) 155 
Polypeltes 384 
(Polypholis, Duncan) = ?Ophiopholis 
(Pomalocrinus, Desor et Kônig) = Milleri- 
[crinus 
(Pomelia, Loriol) = Leforlia (Préocc.) 
(Pomelopsis, Loriol) = Lefortia (Anticip.) 
(Pomoeystis, Hâckel) = Sphæronites 
(Pomonites, Hâckel) = Sphæronites 
(Pomosphæra, Hâckel) = Sphæronites 
Pontaster 86 
(Pontasterinæ, Vcrrill) = Sous-fam. 
Porania 94 = (Chondraster) [pour Pontaster 
Poraniomorpha 94 
Poraniopsis 94 
Porcellanaster 89 
(Porcellanasteridæ) 89 
Porcellanasterinæ 89 
Porocidaris 228 
Porocrinus 380 [matocrinus 
(Porocrinus, Dittmar non Billings) = Trau- 
(Poropeltaris, Quenstedt) = Peltastes 
(Poropeltis) = var. p. Poropeltaris 
(PorpiteUa, Pomel) = Scutellina 
Poteriocrinus 381 [Phyalopsis) 
Pourtalesia 266 = (Ceratophysa, Phyale, 
(Pourtalesiæ) 267 
(Pourtalesidæ) 267 
(Pradocrinus, Verneuil) = ?Periechocrinus 
(Præsculella, Pomel) = Scutella 
Prenaster 270 
Prionaster 86 
(Prionocidaris, Agassiz) = Cidaris 
Prionechinus 240 = (Arbacina) 
Priscopedatus 323 
Procidaris 228 [crinus 
(Proclivocrinus, Ringueberg) = Eucheiro- 
(Procnaster) = err. orth. Zool. Rec. 91 p. 
[Prognaster 
(Prodiadema, Pomel) = Gymnocidaris 
Prognaster 102 
Progonechinus 239 
Progonolampas 265 
Proholaster 266 
Promachocrinus 394 
(Prometalia, Pomel) = Metalia 
(Prophymosoma, Lambert) = nom. nov. 
prop. par Lambert p. Phymosoma, Ilaimea 
(Proraster, Lambert) = Spatangus 
Prosechinus 218 
(Prosostoma, Pomel) = Asterostoma 
Protamphora 416 
Protankyra 337 
Protaster 146 
(Protasteridæ) 146 
I Prolasteracanthion 105 
