INDEX 



97 



plagiobrissus, 59 



plana, Echinometra, 27 



plana, Meijerea, Argopatagus, 49 



Planilampus, 26 



planissimus, Echinocyamus, 26 



plateia, Fibularia, 33 



platytatus, Echinocyamus, 26 



Plesiodiadema, 5 



Plesiozonus, 59 



Plethotaenia, 48 



Pleurechinus, 60 



Plexechinus, 61 



Podocidaris, 61 



polyacanthus, 



Strongylocentrotus, 82 

 Polyechinus, 54 

 polyporus, Echinocyamus, 26 

 Poriocidaris, 62 

 Porocidaris, 62 

 Pourtalesia, 63 

 Prionechinus, 64 

 Prionocidaris, 65 

 Protocentrotus, 66 

 Psammechinus, 66 

 Pseudoboletia, 9 

 Pseudocentrotus, 87 

 Pseudechinus, 52 

 Pseudolovenia, 66 

 Pseudomaretia, 48 

 Psilocidaris, 67 

 pulchella, Hemipedina, 



Caenopedina, 40 

 pulchellimus, Salmacopsis, 



Mespilia, 72 

 pulchellus, Gymnopatagus, 



Eupatagus, 38 

 pulchellus, Gymnechinus, 38 



Strongylocentrotus, 84 

 pulcherrimus, Psammechinus, 



Hemicentrotus, 66 

 purpurata, Porocidaris, 



Poriocidaris, 62 

 purpuratus. Echinus, 



Strongylocentrotus, 29 



purpurea, Aceste, 2 

 purpureum, Leptodiadema, 44 



Micropetalon, 51 

 putnami, Laganum, 44 

 Pycnolampas, 67 

 pycnotylus, Holopneustes, 41 

 Pygorhynchus, 67 

 pyramidalis, Rhynobrissus, 69 

 pyrochloa, Asthenosoma, 

 Calveriosoma, 8 



rarispinus, Clypeaster, 17 

 rathbuni, Cystechinus, 



Pilematechinus, 19 

 ravenelii, Stolonoclypus, 



Clypeaster, 81 

 reticulatus, Urechinus, 89 

 revinctus, Cionobrissus, 14 

 Rhinohrissus, 67 

 Rhopalocidaris, 68 

 Rhynchocidaris, 68 

 Rhynobrissus, 68 

 robillardi, Gymnechinus, 36 

 rodgersi, Thrichodiadema, 



Centrostephanus, 87 

 rosea, Rhopalocidaris, 68 

 roseus, Anthechinus, 



Microcyphus, 4 

 rotundus, Periaster, 



Hypselaster, 55 

 Stolonoclypus, Clypeaster, 81 

 rubellus, Eupatagus, 32 

 ruber, Prionechinus, 65 

 rubida, Stylocidaris reini, 86 

 rubra, Stereocidaris granularis, 79 

 rubricincta, Salmacis, 72 

 rubricingulus, Centrostephanus, 12 

 rufa, Salmacis, 72 

 rugosa, Dorocidaris, Cidaris, 22 



Salenia, 69 

 Salenocidaris, 71 

 Salmaciella, 71 

 Salmacis, 71 



