— 4 22 — 



Pages 

 Placostegus crystallinus Philippi. . 35i, 352, 353 



— Langerhansi Marenzeller 353 



— tricuspidatus Sowerby. ai, 33i, 352 



353 



— tridentatus Fabricius i3, 16, 19, 21 



3o, 35i, 352, 353 

 Platynereis Kinberg 164, 193 



— coccinea Délie Chiaje .... 8, 18, 194 



— Dumerilii Audouin et M. -Edwards 



8, 18, 21, 22, z3, 25, 29 

 193, 194, K|5 



— insolita Gravier iq3 



Pleione carunculata Grube 88 



— tetraèdra Milne-Edwards 85 



Pleurocorallium Johnstoni Gray 69 



Pœciloch/Etus Allen 272 



Pollicita peripatus Johnston 96 



Polybostrichus longosetosus Œrsted 108 



— Miïlleri Keferstein 107 



Polycirrus Grube 309 



— albicans Malmgren 12, 309 



— aurantiacus Grube 12, 16, 309 



POLYDORA BOSC 219 



— Agassizii Claparede 219 



— cœca Œrsted 9, 219 



— ciliata Johnston 9, 219, 220 



Polyeunoa lsevis Mc'Intosh 70 



Polymnia Malmgren 298 



— nebulosa Montagu 11, 19,298 



— Nesidensis Délie Chiaje 298 



Polynoë Savigny 53, 68, 70, 80 



— antillicola Augener. 3, 4, 17, 19, 29 



68 



— aspera Hansen 57 



— asperrima Sars 52 



— badia Théel 4y 



— Cœciliœ n. sp. 4, i3, 14, 16, 22, 23 



29, 69 



— cirrata O. F. Millier 53 



— clypeata Grube 36 



— dorsalis Quatrefages 36 



— extenuata Claparede 62, 63 



— flexuosa Savigny 63 



— foliosa Audouin et M.-Edwards 36 



— gelatinosa Sars 36 



— globitera Hansen 52 



— grubiana Claparede 36 



Polynoë impar Johnston 60 



— lactea Ehlers 48 



— longisetis Grube 58 



— lunulata Délie Chiaje 54 



— microphthalma Roule 48 



— mirabilis Mc'Intosh 39 



— nodosa Sars 5 1 



— pellucida Ehlers 47 



— rarispina Sars 65 



Pages 

 Polynoë Sarsi Théel 49 



— scabra Theel 5i 



— scabra Audouin et M.-Edwards 5o 



— scolopendrina Audouin et M.-Edwards 20 



— semisculpta Johnston 62 



— spinifera Ehlers 54 



— squamata Grube 35 



— synophthalma Mc'Intosh 48 



— Talismani Roule 66 



— trochiscophora Schmarda 36 



Polynoinés Grube 35 



Polyodontes Renieri 72, 73, 74 



— aphroditœus Renieri 74 



— gulo Grube 73, 76, 78 



— maxillosus Ranzani 4, 73, 74, 76 



77, 78, 81 



Polyophthalmiens Quatrefages 247 



Polyophthalmus Quatrefages 247, 249 



— dubius Quatrefages 247 



— Ehrenbergi Quatrefages 247 



— pallidus Claparede 247 



— pictus Dujardin 10, i5, 23, 247 



Polyphragma Quatrefages 324 



Pomatoceros Philippi. 335, 337, 3 4°> 347, 35o 



35i 



— tricuspis Philippi 347 



— triqueter Linné... i3, 16, 32,347 



— triquetroïdes Délie Chiaje 347 



Pomatostegus Schmarda 348, 34g, 35 1 



— galeatus n. sp.... i3, 14, 23, 350 



— polytrema Philippi i3, 19, 3o, 323 



348 

 Pontogenia Claparede 35 



— sericoma Ehlers 3, 17, 19, 35 



Posidonia 286 



Potamilla Malmgren 3i3, 314, 3i6, 3ig 



— breviberbis Langerhans 314 



— incerta Langerhans '. 314, 3i5 



— neglecta Sars 12, 315 



— reniformis O. F. Muller . . 12, 16, 21 



265, 314 



— stichophthalmos Grube. .. . 12, 23, 315 



— Torelli Malmgren 12, 16, 21, 27, 314 



3i5 

 Potamis Ehlers 316 



— spathiferus Ehlers. . 12, 19, 20, 3o, 3i 



32, 316 

 Praxilla arctica Malmgren 262 



— praetermissa Malmgren 262 



Praxillella Verrill 262 



— prartermissa Malmgren 10, 262 



Praxithea irrorata Malmgren 1 70 



Prionognathus Keferstein 1 53 



Prionospio tenuis Fewkes 222, 



Proceraea Ehlers 107 



— brachycephala Marenzeller 10S 



