INDEX. 



693 



Plexaiirella multicauda, 568. 



dichotoma, 568. 

 Plintbaster, 161. 



compta, 161, 163,332. 



nitida, 161, 165, 232. 



Perrieri, 161. 

 Plutonaster, 184, 188, 189, 192, 211, 

 212, 218. 



Agassizii, 211, 232. 



bifrons, 211. 



efflorescens, 311. 



intermedms, 192, 211. 



piilcher, 213. 



rigidns, 211. 



var. semiarniatus, 211. 

 Plutonasteridae, 300. 210. 

 Phitonasterinae, 300, 310. 

 Podarke obscura, 599. 

 Poecilozonites, 491, 492. 494, 499, 507. 



bermndeDsis, 491, 499, 500, 506. 



cirenmfirmatus, 491, 493, 499, 500, 

 506, 509. 



var. goodei, 500. 



nelsoni, 491. 499, 500. 



reinianus, 491, 499, 500, 507. 

 Polia curta, 597. 



delineata, 597. 

 Polycarpa multipliiala, 591. 



Mayeri, 591. 

 Polycirrus, 600, 666. 



corallicola, 665. 



denticiilatus, 666 



lumiiiosiis, 666, 672. 



pennulifera, 665. 

 Polydora, 600. 

 Polygyra, 495. 



appressa, 493, 496. 



var. sciilptior, 496. 



microdonta, 493, 496, 506, 508, 509. 

 Polymnia, 599, 660. 

 Polymniella, 600. 660. 



anrantiaca, 661. 



magnifica, 660. 

 Polyiioe granulata. 599. 



piistulata, 599. 

 PolyjDoriim, 466.' 

 Polyspirella, 534. 



traehealis, 534. 

 Polyzoa of Bermuda, 593. 

 Pontasterinae. 301. 

 Pontonida?, 579. 

 Porcellanasteridce, 300, 201. 

 Porella, 391. 

 Porites astrseoides, 552. 

 Porpita Linnaeana, 571. 

 Portunidae, 577. 

 Portimus Ordwayi, 577. 

 Praxilla, 654. 



elongata, 657. 



zonalis, 655. 

 Praxillella, 654, 655. 



collaris, 655. 



gracilis, 654, 655. 



Praxillella luinbricoides, 655. 



qiiadrilobata, 655. 



simplex. 655. 

 Praxillura, 660. 



omata, 660. 

 Primnoa, 66. 

 Prionaster, 201, 213, 214, 315. 



elegans, 301, 316, 333. 

 Prioiiognathus, 648. 

 Priouolejeunea microdonta, 456. 

 Proceraea. 631. 



ornatus, 631. 



nibropuuctata, 631. 



simi^lex, 630. 

 Propeamusiiim. 63, 64, 67, 88, 90, 92. 



Alaskensis, 65, 92. 



cancellatum, 65, 93. 



fenestratum, 64. 



Holmesii, 65, 93. 



Hoskynsi, 65, 83, 93. 



inequisctilpta, 64, 93, 94. 



lucidum, 65, 93. 



obliqiiiim, 65, 93. 



Ponrtalesianum, 65, 92. 



propinquum, 65, 93. 



Sayan um, 65. 92. 



scitulnm, 65, 92. 



thalassiuum, 65, 87, 92, 94. 



Torresi, 65, 92. 

 Prosobrauchiata, 525. 

 Prosorochmus, 235. 

 Prostheceraeus, 270, 274, 384. 



vittatus, 363, 383. 

 Prostbiostomum sipliimculus, 383. 

 Protamusium, 63, 63, 71, 90, 93. 



demissum, 71, 73, 93. 



disciforme, 73, 93. 



illiistre, 73, 93. 



membranaceum, 73, 93. 



obovatum, 73, 93. 



sulcatellum, 73, 92. 

 Protopalytboa, 562, 563. 



Canariensis, 562. 



clavata, 563. 



fiisca, 563. 



grandis, 563, 572. 



Heilprini, 562. 



isolata, 563. 



McMurricbi, 562. 



Mntuki, 563. 



Eiisei, 563. 



variabilis, 563. 

 Prototbelepns, 600, 663. 



tenuis, 663. 

 Protnla, 600, 

 Protiilides elegans, 599. 

 Psammacoma tenta, var. Souleyetiana, 



531. 

 Psendamusiiim, 55, 58, 60, 63, 65, 67, 

 70, 90, 93. 



dispar, 70. 



exoticnm, 60, 61, 70, 93. 



imbrifer, 70, 82, 84, 85. 



