608 



INDEX. 



Phellia inornata, 489, 562. 

 Panamensis, 490, 562. 

 riibens, 489, 562. 

 Phos, 350. 

 Phycogorgia, 413, 484. 



fucata, 413, 561, 596. 

 Phyllacanthus, 349. 

 Phyllactinte, 462, 461. 

 Phyllactis, 463. 

 Phyllangia, 531, 340, 534, 536. 



dispersa, 532, 563, 566. 

 Phyllogorgia, 384. 



dilitaia. 362. 

 Phyllophorus lepadifera, 346. 

 Phymactis, 475. 



clematis, 475. 566. 

 florida, 475, 566. 

 Pinnaxodes hirtipes, 306. 

 Placotrochus, 535. 

 Plagionotus, 348, 591. 



AfricaDus, 569, 571, 592. 

 Desorii, 571. 

 nobilis, 591. 



pectoralis, 571, 345, 592. 

 Plexaura, 413, 386, 416. 

 arbuscula, 406. 

 auraatiaca. 413. 

 dichotoma, 361. 

 fucosa, 404, 405. 

 platyclados, 406. 

 reticulata, 405. 

 rosea, 406. 

 sanguinea, 406. 

 Plexaurella, 361, 413, 416. 

 anceps, 362. 

 dichotoma, 861. 

 Plexaurida3, 413, 386, 418. 

 Pocillipor;), 519, 340, 513, 518. 

 capitata, 520, 563, 565. 

 lacera, 523, 563. 

 porosa, var., 521, 563. 

 pumila, var., 522, 563. 

 robusta, var., 521, 563. 

 Pocilliporidse, 518, 514, 512, 596. 

 Pocillopora, see Pocillipora. 

 Pocilloporinffi, 518. 

 Polypi, Brazilian, 352. 

 Polypiers lamellifera, 500. 

 Polyps, and Corals, of the west coast of 

 America, Review of the, 377. 



Geographical distribution of, of the 

 west coast of America, 566. 

 Poriies, 503, 358, 365. 



Californica, 504, 564, 562, 565. 

 excavata, 504, 562. 

 Gaudaloupensis, 358. 

 nodulosa, 505, 563, 565. 

 Panamensis, 505, 523, 563. 

 porosa, 504, 562. 565. 

 ,«olida, 358, 364. 

 Poritidae 503, 501. 



Portsmouth, N. H., Auroras observed at. 

 156. 



Primnoa, 454. 



compressa, 454, 559. 



lepadifera, 454. 



reseda, 454. 

 Primnoaceffi, 418. 

 Primnoacees, 418. 

 Primnoidce, 418. 

 Psammechinus, 301, 348, 584. 



aciculatus, 344. 



cliloroticus, 584. 



pictus, 301, 344, 581. 



variegatus, 369. 

 Psammocora, 501. 

 Psammogorgia, 414, 413, 405. 



arbuscula, 414, 556, 561. 



Dowii, var., 415, 417, 561. 



fucosa, 417, 556, 561. 



gracilis, 417, 561. 



pallida, var., 415, 561. 



teres, 416, 556, 561, 564. 

 PsUechinus variegatus, 369. 

 Psolus Sitchrensis, 325. 

 Pteraster Danas, 568. 



militaris, 569, 344. 



pulvillus, 569. 

 Pterogorgia, 359, 385, 386, 387. 



acerosa, 386. 



bipinnata, 360. 



gracilis, 359, 596. 



flabellum, 392. 



petechizans, 385. 



sarmentosa, 385. 

 Ptilosarcus, 382. 



Gurneyi, 548, 382, 559, 560. 

 Puget Sound, list of Echinoderms found at, 



324, 

 Pycnopodia helianthoides, 324, 326, 327. 

 Pygorhynchus, 315, 348. 



Paciticus, 315, 328, 329, 345, 348. 



Radiata, Notes on, in the Museum of Yale 



College, 247. 

 Register, Extracts from an Auroral, kept 

 at New Haven, Ct., by Francis Bradley, 

 139. 



of the Aurora Borealis at New Haven, 

 Ct., from March, 1837, to Dec, 1853, 9. 

 Remarks on the Brazihan Coi al-fauna, 364. 

 Renilla, 378, 340. 

 Americana, 380. 

 Hmethystina, 379, 546, 560. 

 Dame. 362. 516. 

 patula, 381, 546. 

 reniformis, 381, 546. 

 violacea, 362, 546. 

 Renillidffi, 378. 

 Review of the Corals, and Polyps of the 



west coast of America, 377. 

 Rhipidogorgia, 340, 384, 385, 386, 387. 

 Agassizii, 388, 391, 392. 

 Englemanni, 393. 

 flabellum, 385, 340. 

 ' media, 389. 



