Index and Glossary 



Oliva erythrostoma, 9 1 

 fusiformis, 94 

 gibbosa, 95 

 littcrata, 94 

 7naura, 92 

 porphyria, 93 

 reticularis, 93 

 iigrina, 92 

 Olive, angled, 93 



Brazilian, 95 

 camp, 93 

 fusiform, 94 



gibbons, 95 



lettered, 94 



little, 95 



Moor, 92 



netted, 93 



porphyry, 93 



red-mouthed, 91 



tiger, 92 



two-plaited, 92 

 Olive Shells, The, 91 

 Olivella intorta, 96 



mutica, 95 



Pedroana, 96 

 Olividcc, 90 

 Ommastrephes, 455 



illecebrosus, 456 



sagittatus, 456 

 Omtnastrephidcc, 455 

 Operculum, defined, 20 

 OPISTHOBRANCHIATA (Order), 243 

 Orb snail, three-coiled, 295 

 Orb Snails, The, 294 

 Ormer, 226 

 Orthalicidcr, 273 

 Orthalicus fasciata, 274 



undata, 273 



Virgiiiica, 274 



zebra, 273 

 Osphradium, defined, 23, 25 

 Ostrma borealis, 423 



edulis, 423 



jrons, 424 



lurida, 424 



Virgiiiica, 423 

 Ostrich-foot Shells, The, 123 

 Otter Shells, The, 335 

 Oviduct: egg duct, 85 



Ovo viviparous: reproducing young by 

 hatching the eggs within the brood 

 chamber of the parent, 19s 

 Ovula acicularis, 135 



angulosum, 136 



gibbosa, 13s 



ovum, 136 



patiila, 136 



tortilis, 136 



■uniplicata, 135 



volva, 136 

 Ovulidae. 135 

 Owl shell, 234 

 Oyster, anatomy of, 424 



Australian, 436 



beard of, 425 



Blue Point, 429 



Chinese, 424, 428 



coon, 62, 424 



cove, 43S 



crow, 149 



culture of, 427 



edible, 423 



enemies of, 65, 74, 430 



European, 423 



French, 429 



green, 429 



hammer, 399 



heart of, 425 . 



Japanese, 424 



Ufe history of, 425 



Oyster, lurid, 424 



native, 429 



New Zealand, 43s 



northern, 423 



pearl, 394 



saddle, 422 



thorny, 404 



tree, 424 



Virginia, 423 

 Oysters, The, 423 



The Hammer, 399 



The Pearl, 393 



The Thorny, 404 

 Pallet, defined, 313 

 Palpi, labial, defined, 307 

 Paludina, 13 

 Paludinidcs, igs 

 Paludotnus Gardneri, 185 



loricatus, 185 

 Panama shells, 94 

 Pandora trilineata, 330 

 Panopcea Aldrovandi, 323 



attentiata, 323 



generosa, 323 



Norwegica, 323 

 Paphia, 351 



Parapodia, defined, 244 

 Pares, oyster, 428 

 Patella aspera, 235 



compressa, 236 



•ferruginea, 23s 



granularis, 23s 



longicosta, 235 



Alexicana, 236 



pectinata, 236 



radians, 235 



vulgata, 235 

 PatellidcB, 234 

 Patula, 263 

 Pea pod shell, 392 

 Pea Shells, The, 355 

 Pearl -diving, 396, 397 

 Pearl fisheries, 39s, 396 

 Pearl Oysters, The, 393 

 Pearls, oriental, 395 



origin of, 39s 



river, 373 



seed, 396 

 Pecten, 411 

 Pccten aquisulcatus, 417 



caurimis, 416 



Diegcensis, 417 



dislocatus, 416 



disiorsum, 4 1 7 



giganfetts, 418 



hastattis, 417 



hericeus, 416 



irradians, 413, 416 



Islandicus, 415, 417 



Jacobcciis, 413 



Japonicus, 418 



lati-auratus, 417 



Magellanicus, 415 



maximus, 414 



nobilis, 415 



nodosus, 41 s 



opercularis, 414 



pusio, 414 



subnodosus, 416 



varius, 412, 418 

 Pectinidcs, 411 

 Pectuticulus giganteus, 386 



pciinaceits, 386 

 Pediiin SponJvloideum, 407 

 PELECYPODA, 303 

 Pelagic: living in the open sea, 49 

 Pelican's Foot, The, 122 

 Pen shell, black, 402 



half-naked, 401 



Moor, 402 



475 



