215 



Octopodia, 792. 

 Octopodoteuthis, 795. 

 Octopus, 792. 

 Ocythoe, 791. 

 Odoncincta, 631. 

 Odoncyncta, 631. 

 Odontidium, 775. 

 Odontina, 775. 

 Odontis, 127. 

 Odontocincta, 631. 

 Odontostoma, 534, 775. 

 Odontostoraus, 466. 

 Odostomia, 286, 471, 473, 



476,501. 

 Okenia, 356. 

 Oleacina, 485. 

 Oligvra, 531. 

 Oliva, 74, 78. 

 Olivella, 75. 

 Olivancillaria, 76. 

 Omala, 577. 

 Omalaxis, 202. 

 Oraalaxon, 202. 

 Onialonyx, 446, 448. 

 Ombrella, 323. 

 L'Onibrelle, 323. 

 Ommastrephes, 807. 

 Omolaxon, 202. 

 Omphalius, 122. 

 Omphemis, 224. 

 Omphiscola, 503. 

 Onchidia, 489. 

 Onchidiodoris, 349. 

 Onchidiorus, 349. 

 Onchidium, 488, 489, 491. 

 Onchidora, 349. 

 Onchidoris, 349. 

 Onchis, 491. 

 Oncidium, 489. 

 Oncis, 491. 

 Oncus, 491. 

 Oniscia, 45, 46, 47. 

 Oniscidia, 46. 

 Onustus, 273, 274. 

 Onychia, 806. 

 Onychoteuthis, 806. 

 Onythochiton, 418. 

 Operculum, 315. 

 Ophicardelus, 497, 498. 

 Opiptera, 313. 

 Opis, 668. 

 Orbicula, 759, 760. 

 Orbiculus, 535, 684. 

 Orbis, 203. 

 Orbitina, 470. 

 Orcula, 471. 

 Oris, 438. 

 Orthaliscus, 470. 

 Orthoceras, 775. 

 Orthostelis, 288. 

 Orthostvlus, 465. 



Ortygia, 546, 677. 

 Oscanius, 325. 

 Osilinus, 128. 

 Osteodesma,627, 630,632. 

 Ostrea, 749. 

 Ostreum, 749. 

 Otala, 453, 454, 455, 471. 

 Otavia, 123, 131. 

 Otina, 255. 

 Otis, 492, 504. 

 Otostomus, 466. 

 Ovatella, 286, 498, 499. 

 Ovula, 108. 

 Ovulum, 108. 

 0\-ulus, 108. 

 Oxinoe, 109, 191, 255. 

 Oxycheilus,461,462. 

 Oxychilus, 461. 

 Oxygyrus, 174. 

 Oxystrombus, 475. 

 Ozaena, 794. 

 Ozoema, 794. 

 Pachylabra, 166. 

 Pacbyotus, 467. 

 ■Pachystoma, 216,331. 

 Pachystomus, 166. 

 Pacyodon, 639. 

 Pacvotus, 467. 

 Padola, 148. 

 Padolla, 148. 

 Padollus, 148. 

 Pagodella, 196. 

 Pagodus, 196. 

 Pallium, 740. 

 Palmarium, 152*. 

 Paludestina, 198, 199. 

 Paludina, 170, 198, 251, 



282. 

 Paludine, 251. 

 Paludinella, 199. 

 Paludomus, 219, 252. 

 Pandora, 644, 738. 

 Paudorina, 632. 

 Panopea, 615. 

 Panopia, 615. 

 Paphia, 572, 675. 

 Papvridea, 560. 

 ParmaceUa, 436, 441, 442. 

 Parmacellus, 441. 

 Parmophorus, 152. 

 Parmula, 435. 

 Parthenia, 286, 288. 

 Parthenope, 313, 646. 

 Parthenopia, 313. 

 Partula, 466, 467. 

 Partulus, 467. 

 Pasithea, 290, 291. 

 Patella, 56*, 152, 263, 267, 



275, 276, 402, 514. 

 Patelloida, 275. 

 Patelloidea, 275,404. 



Patellus, 402. 

 Patina, 403. 

 Patula, 462. 

 Patularia, 685. 

 Paxvodon, 696. 

 Pectella, 443. 

 Pecten, 738. 

 Pectunculina, 720. 

 Pectunculus, 557, 585, 



710. 

 Pedicularia, 56. 

 Pedipes, 292, 495. 

 Pedum, 745, 809. 

 Pegea, 468. 

 Pelagia, 787. 

 Peloris, 749. 

 Peloronta, 161. 

 Pelta, 390, 451. 

 Pelvis, 715. 

 Penicillus, 599. 

 Peplidea, 360. 

 Pera, 556. 

 Peracles, 177. 

 Perdix, 50. 

 Peribolus, 103. 

 Periploma, 027. 

 Peristoma, 470. 

 Perlamater, 732, 733. 

 Perna, 716, 723, 732, 736. 

 Peronaea, 572, 575, 583. 

 Peroneoderma, 572, 575. 

 Peronia, 349, 491. 

 Perrona, 12. 

 Persicola, 102. 

 Persicula, 102. 

 Persona, 7. 

 Petalifera, 316. 

 Petasia, 460. 

 Petricola, 548, 551. 

 Phaenospira, 100. 

 Phakellopleura, 425. 

 Pharus, 607. 

 PhasianeUa, 116, 125,194, 



289. 

 Phasianema, 206. 

 Phasianus, 116. 

 Philippia, 142. 

 Philomycus, 434. 

 Philonexis, 797. 

 Philonexus, 797. 

 Pholadidea, 589. 

 Pholadidodea, 589. 

 Pholadomya, 615, 671. 

 Pholas, 586, 589, 604. 

 Pholeobia, 654. 

 Pholidasa, 589. 

 Phorcus, 122. 

 Phorus, 273. 

 Phos, 72. 

 Phosphorax, 430. 

 Pbylina, 299. 



