MOLLUSCA. ZOOPHYTES. 
213 
Navicula, xii. 493 
Nemato'idea, ( Rudolphi ) 458 
Nemertes, ( Cuv .) 468 
Nemertesia, ( Lamour .) 502 
Nerita, {Lin.) 64 
corona, 65 
fluviatilis, 65 
peloronta, 280 
perversa, 64 
pulligera, 65 
turrita, 65 
Neritina, {Lam.) 64 
Nermertes Borlasii, 468 
Nesea, {Lamour.) 505 
Notarchus, {Cuv.) 45 
gelatinosus, 45 
Nucleolites, 447 
Nucula, (Zam.) 103 
Nudibranchia, the, 349 
Nudibranchiata, the, 24. 36 
Nullipora, 513 
Nummulites, {Lam.) 16 
Octhosise, the, {Ranzani) 137 
Octopi, duration and size of the, 294 
fishing for the, 293 
food of the, 291 
long arras of the, 290 
size of the, 295 
utility and injury of the, 296 
Octopus, {Lam.) 8 
the argonaut, 299 
the genus, 289 
habitation of the, 292 
the navigating, 298 
Oculina, {Lam.) 511 
Ocyroe, {Rang.) 488 
maculata, 488 
Ocythoe antiquorum, 297 
{Rafinesque) 297 
Oliva, {Brug.) j 1 
littorata, 280 
subuluta, 71 
Olygiras, {Say.) 62 
Ombellularia, {Cuv.) 515 
Ombrella, {Lam.) 352 
Onchidia, the, 346 
typhae, 346 
Onchidium, {Buck.) 33 
laevigatum, 33 
typhae, 33 
Onchidora, {Blain.) 37 
{Leachii) 3j 
Onychotheuthis, {Lichtenst.) 11 
Onykia, {Lesueur) 11 
Ophiocephalus, {Quoy Sf Gaim.) 468 
Ophiostomus, 460 
cystidicola, 461 
Ophiures, {Lam.) xii. 442 
Orbicula, {Cuv.) 133 
Orbicula, {Lam.) 424 
Orbitulites, {Lam.) 15 
the, 516 
Orythia, {Peron) 485 
Oscabriones, the, 368 
locomotion of the, 188 
motion of the, 194 
nervous system of the, 224 
Ostracea, the, 91 
Ostracita, {Le Peyr.) 92 
Ostrea, {Lin.) 93 
(Z.) 369 
cristata, 93 
edulis, 93. 380 
folium, 93 
lima, 95 
malleus, 98 
maxima, 94 
parasitica, 93. 370 
solea, 94 
spondyloidea, 95 
Otion, 429 
Cuvierii, 136 
{Leach) 136 
Ovulae, {Montf.) 71 
Ovulites, {Lin.) 516 
Oxyuris, {Rud.) 460 
curvula, 460 
Oyster, the, 369 
the common, 93 
the leaf, 93 
the little Mediterranean, 93 
the parasite, 93 
the pearl, 387 
Oysters, art of greening, 377 
eggs of the, 371 
the green, 376 
heart of the, 215 
mode of parking, 373 
nutritious quality of, 379 
utility of, 372 
Pachytes, {Defr.) 96 
Padollae, the, {Montf.) 86 
Pagurus Bernhardus, 9 
Paludina, {Lam.) 59 
Paludinae, the, 354 
Pandora, {Brug.) 120 
Panope de Faujas, 120 
Panopea, {Mesnard) 120 
Pantacrinus Europaeus, 444 
Paphia, {Roiss) 108 
Paramecium, 521 
Parenchymata, 469 
Parmacella, {Cuv.) 28 
Olivieri, 28 
