INDEX OF GENERA. 



865 



Mixotermitoidea, II 429 

 Modiella, f, I 456 

 Modiola, £, I 521 

 Modiolodon, m, I 516 

 Modiolopsis, f, I 511 

 Modiomorpha, f, I 513 

 Mollusca, I 361, II I 

 Molluscoidea, I 107 

 Monilopora, f, I 81 

 Monograptus, m, I 34 

 Monomerella, f, I 190 

 Monopleura, f, I 547 

 Monopteria, f, I 450 

 Monotrypa, f, I 137 

 Monotrypella, f, I 131 

 Monticuhpora 1, I 127 

 Moorea, f, II 350 

 Mordellidae, II 446 

 Mormolucoides, m, 11 441 

 Morphoceratida, II 189 

 Mortonia, f, II 592 

 Mortoniceras, n, II 225 

 Moths, II 452 

 Mourlonia, f, I 646 

 Muensteroceras, n, II 139 

 Murchisonia, f, I 650 

 Murchisonidae, I 648 

 Murex, m, I 785 

 Muricidse, I 784 

 Myalina, f, I 453 

 Myas, m, II 448 

 Mycetophsetus, m, II 455 

 Mycetophila, f, II 455 

 Mylacridae, II 436 

 Mylacris, f, II 437 

 Myriopoda, II 417 

 Myriopods, II 417 

 Mytilarca, f, I 432 

 Mytilus, m, I 520 



Nsediceras, n, II 113 

 Naiadites, m, I 477 

 Nannites, m, II 150 

 Nannitida, II 150 

 Nanno, n, II 44 

 Nanthacia, f, II 444 

 Nassa, f, I 763 

 Natica, f, I 716 

 Naticidse, I 715 

 Naticopsidae, I 673 

 Naticopsis, f, I 673 

 Nautiloidea, II 39 

 Nautilus, m, II 84, 107, 



108, no 

 Nebria, f, II, 448 

 Necrocydnus, m, II 456 

 Neithea, f, I 497 

 Nematopora, f, I 153 

 Nemodon, m, I 404 

 Neolenus, m, II 270 

 Neotremata, I 199 

 Nephriticeras, n, II 84 



55 



Neptunea, f, I 76^ 

 Nereites, m, II 245 

 Nerinea, f, I 744 

 Nerineidse, I 744 

 Nerinella, f, I 746 

 Nerita, f, I 706 

 Neritidae, I 706 

 Neritina, f, I 706 

 Neritopsidae, I 705 

 Neritopsis, f, I 705 

 Neuronia, f, II 452 

 Neuroptera, II 451 

 Neverita, f, I 719 

 Newtoniella, f, I 749 

 Nicholsonella, f, I 136 

 Nileus, m, II 299 

 Niso, f, I 709 

 Nisusia, f, I 210 

 Nodosaria, I 10 

 Nomaretus, m, II 448 

 Nothozoe, f, II 375 

 Nucleocrinus, m, II 483 

 Nucleospira, f, I 349 

 Nucula, f, I 395 

 Nuculana, f, I 400 

 Nuculites, m, I 397 

 Nyassa, f, I 478 

 Nymphalites, m, II 454 



Obolella, f, I 188 

 Octocoralla, I 96 

 Octonaria, f, II 350 

 Oculina, f, I 103 

 Odonata, II 449 

 Odontocephalus, m, II 325 

 Odontofusus, m, I 780 

 Odontopleura, f, II 312 

 Odostomia, f, I 710 

 CEcotraustes, f, II 184 

 CEnonites, m, II 242 

 Ogygopsis, f, II 289 

 Olcostephanus, m, II 189 

 Olenellus, m, II 262 

 Olenoides, m, II 272 

 OHarites, m, II 457 

 Oligoporus, m, II 582 

 Oliva, f, I 795 

 Olivella, f, I 796 

 Olividae, I 795 

 Olivula, f, I 797 

 Ollacrinus, m, II 551 

 Omphalotrochus, m, I 667 

 Oncoceras, n, II 122 

 Ontaria, f, I 391 

 Onychaster, m, II 570 

 Onychocella, f, I 169 

 Onychocrinus, m, II 566 

 Ooceras, n, II 125 

 Ophileta, f, I 656 

 Ophiletina, f, I 657 

 Ophioglypha, £, II 57i 

 Ophiurans, II 570 



Ophiurese, II 571 

 Ophiuroidea, II 570 

 Opiliones, II 416 

 Opis, f, I 540 

 Opisthobranchia, I 806 

 Opisthoparia, II 260 

 Oppelia, f, II 184 

 Opter, m, II 439 

 Orbiculoidea, f, I 204 

 Orbitoides, m, I 12 

 Orbulina, f, I 10 

 Ormoceras, n, II 116 

 Ormospira, f, I 631 

 Orophocrinus, m, II 488 

 Orthaulax, f, I 756 

 Orthidae, I 249 

 Orthis, f, I 249, 250 

 Orthoceras, n, II 47 

 Orthoceratida, II 47 

 Orthochoanites, II 47 

 Orthodesma, n, I 379 

 Orthomylacris, f, II 437 

 Orthonema, n, I 696 

 Orthonota, f, I 377 

 Orthonychia, f, I 687 

 Orthoptera, II 443 

 Orthorapha, f, II 455 

 Orthorhynchula, f, I 281 

 Orthostrophia, f, I 256 

 Orthotheca, f, II 6 

 Orthothetes, m, I 228, 2^1 

 Ortonella, f, I 412 

 Ortonia, f, II 239 

 Oryctoblattidae, II 432 

 Oryctoblattina, f, II 432 

 Oryctoscirtetes m, II 447 

 Orygoceras, n, II 62 

 Osmylidae, II 451 

 Osmylus, m, II 451 

 Ostracoda, II 333 

 Ostrea, f, I 458 

 Owenella, f, I 610 

 Oxybeloceras, n, II 201 

 Oxy discus, m, I 616 

 Oxygonus, m, II 447 

 Oxyrhyncha, II 393, 394 

 Oxystomata, II 393, 394 



Pachychilus, m, I 740 

 Pachydictya, f, I iS9 

 Pachydiscus, m, II 173 

 Pachydomella, f, II 362 

 Pachymelania, f, I 742 

 Pachyphyllum, n, I 70 

 Palaeacmaea, f, I 606 

 Palaeacmaeidae, I 603 

 Palaeanatina, £, I 385 

 Palaeaster, m, II 572 

 Palaeasterina, f, II 572 

 Palaeechinoidea, II 576, 



578 

 Palaeoblattariae, II, 433 



