832 



Mazza, 560 

 MiizziUirui, 560 

 Mecochirus, 763 

 Mecynoflon, 471 

 M«-(llicottia, 633 

 Mcdusaster, 251 

 Meekechiims, 307 

 Meekella, 387 

 Meekoceras, 645 

 Meekocytis, 154 

 Meekopora, 330 

 Medusites, 134 ^ 

 Megacystites, 150 

 Megalanteris, 402 

 Megalaspis, 718 

 Megalithista, 57 

 Megjilodon, 453 

 Megalograptus, 783 

 Megalomastoma, 540 

 Megalomus, 454 

 Meganeura, 809 

 Meyanteris, 402 

 Megaphyllites, 641 

 Megapodagrion, 811 

 Megaptera, 445 

 Megaraphidia, 812 

 Megarhiza, 59 

 Megarhynchus, 392 

 Megatebennus, 526 

 Megateuthis, 682 

 Megathyris, 405 

 Megerlea, 405 

 Megerlina, 408 

 Megistocrinus, 195 

 Meiocardia, 491 

 Melanipus, 574 

 Melanagrion, 811 

 Melania, 547 

 Melanopsis, 548 

 Meleagrina, 448 

 Melia, 600 

 Meliceritites, 324 

 Meilita, 288 

 Melo, 561 

 Meloceras, 611 

 Melocrinus, 190 

 Melonechinus, 304 

 Melonella, 56 

 Melongena, 557 

 Melanites, 304 

 Melonoceras, 611 

 Membranipora, 349, 350 

 Membraniporella, 350 

 Meneghiniceras, 652 

 Menipea, 348 

 Meniscopora, 353 

 Menophyllum, 84 

 Mentzelia, 412 

 Meoma, 297 

 Meretrix, 493 

 Merista, 516 

 Meristella, 415' 

 Meristina, 415 

 Meristocrinus, 204 

 Meristospira, 415 

 Meiocrinus, 215 

 Mero'e, 492 

 Mesalia, 546 

 Mesenterijmra, 319 

 Mesidotea, 758 

 Mesite.% 156 

 Mesoblastus, 172 

 Mesoceras, 597 

 Mesocrinus, 229 

 Mesocystis, 156 

 Mesodesma, 498 

 Mesograptus, 130 

 Mesoleuctra, 808 

 Mesonacis, 714 

 Mesoneniura, 808 

 Mesothyra, 753 

 Mesotreüi, 377 

 «Mesotryf);i, 333 

 Mospilocrinus, 203, 232 

 Mesuropetala, 810 

 Metablastus, 170 



TEXT-BOOK OF PALEON TOLOGY 



Metacoceras, 605 

 Metacrinus, 234 

 Metalia, 297 

 Metaplasia, 412 

 Metaporliinus, 202 

 Metasibirites, 639 

 Metatirolites, 648 

 Metengonoceras, 671 

 Metichthyocrinus, 205 

 Metoiceras, 671 

 Metopaster, 250 

 Metoptoma, 520 

 Metriophylliun, 84 

 Metiila, 557 

 Michelinia, 115 

 Mickwitzella, 371 

 Mickwitzia, 370 

 Micrabacia, 103 

 Micraster, 296 

 Microblastidium, 67 

 Microceras, 521 

 Microconchus, 138 

 Microcrinus, 237 

 Microcylus, 82 

 Microcyphus, 282 

 Microderoceras, 656 

 Microdiscus, 711 

 Microdoma, 531 

 Microdon, 471 

 MicrOinaia, 766 

 Micromelania, 545 

 Micromitra, 370 

 Micropedina, 278' 

 Micropocrinus, 241 

 Micropora, 351 

 Microporella, 351 

 Micropsis, 280 

 Microschiza, 537 

 Microseris, 102 

 Microsolena, 104 

 Microthorax, 766 

 Microthyris, 406 

 Microtropites, 638 

 Mila, 444 

 Miliola, 38 

 Miliolina, 38 

 Millepora, 119 

 Millericrinus, 231 

 Milneria, 476 

 Miltha, 486 

 Miltites, 639 

 Miiuoceras, 629 

 Mimocystites, 157 

 Mimulus, 387 

 Miocidaris, 272 

 Mischoptera, 813 

 Miskoia, 136 

 Missouricrinus, 215 

 Mithracites, 765 

 Mitoclema, 321 

 Mitra, 560 

 Mitraefusus, 557 

 Mitraster, 250 

 Mitrocystella, 150 

 Mitrocystites, 150 

 Mixosiphonoceras, 610 

 Mixotermes, 797 

 Mizalia, 790 

 Mohergia, 375 

 Modelia, 529 

 Modiella, 449 

 Modiola, 463 

 Modiolaria, 463 

 Modiolodon, 462 

 Modioloides, 439 

 Modiolopsis, 462 

 Modiomorpha, 462 

 Mogulia, 523 

 Mohrensternia, 545 

 Moira, 296 

 Mojsvarites, 651 

 Molaria, 776 

 Moltkia, 110 

 Monachocrinus, 230 

 Monia, 461 

 Monmorella, 373 



Monobolina, 377 



Monoceros, 558 



Monocondylaea, 455 



Monodacna, 490 



Monodonta, 531 



Mouograptus, 132 



Monoi^hyllites, 650, 651 



Monopleura, 478 



Monoprion, 132 



Monopteria, 448 



Monorakos, 727 



Monotls, 448 



Monotrypa, 339 



Monotrypella, 336 



Monticulipora, 381 



Montlivaltia, 96 



Moorea, 738 



Moorefieldella, 398 



Mopalia, 513 



Morio, 554 



Mormolucoides, 811 



Morphoceras, 664 



Mo7-risia, 405 



Morfeoii iceras, 672 

 Mourlonia, 524 

 Mucronella, 352 

 Muehlfeldtia, 405 

 Muelleria, 455 

 Muensterites, 648 

 Muensteroceras, 636 

 Mulinia, 498 

 Mulletia, 447 

 Multicavea, 326 

 Multitubigera, 322 

 Multizonopora, 326 

 Muniericeras, 669 

 Murchisonia, 525 

 Murex, 558 

 Musculus, 403 

 Mutela, 455 

 Mutiella, 487 

 Mya, 499 

 Myacites, 464 

 Myalina, 449 

 Myalinodonta, 448 

 Myalinoptera, 449 

 Mycetopoda, 455 

 Mycocrinus, 214 

 Myelodactylus, 212 

 Myocaris, 754 

 Myochama, 467 

 Myoconcha, 402 

 Myodora, 467 

 Myonera, 470 

 Myonia, 566 

 Myophoria, 456 

 Myophoriopsis, 457 

 Myoplusia, 440 

 Myopsis, 466 

 Myrianites, 141 

 Myriopora, 353 

 Myriozoum, 353 

 Myristica, 557 

 Myrtea, 486 

 MyrtillocrinuH, 210 

 Mysidia, 449 

 Mystrophora, 393 

 Mytilarca, 445 

 Mytilops, 449 

 Mytilopsis, 463 

 Mytilus, 463 



Nacella, 520 

 Naiadites, 451 

 Naites, 141 

 Nannites, 637 

 Nanno, 596 

 Nannogouiphus, 810 

 Nanocrinus, 219 

 Nanthacia, 799 

 Naranaio, 494 

 Naraoia, 733 

 Narthecoceras, 596 

 Nassa, 556 

 Natica, 542 

 Naticella, 533 



Naticopsis, 533 

 Natiria, 533 

 Naumacliocrinus, 230 

 Nautilus, 607 

 Neaera, 469 

 Neatretia, 400 

 Nebalia, 749 

 Necrocarcinus, 765 

 Necrogammarus, 759 

 Necroscilla, 768 

 Necrotaulius, 814 

 Nectotelson, 756 

 Neithea, Abi 

 Nemagraptus, 130 

 Nemapodia, 141 

 Nemastomoides, 791 

 Nemataxis, 344 

 Nematocrinus, 214 

 Neinatopöra, 343 

 Nematotrypa, 344 

 Nematura, 545 

 Nemertites, 141 

 Nemodon, 442 

 Neobolus, 372 

 Neocatillus, 447 

 Neocatopygus, 290 

 Neocomites, 668 

 Neocrinus, 233 

 Neocystites, 160 

 Neohindia, 56 

 Neolampas, 291 

 Neolenus, 716 

 Neoliuiulus, 776 

 Neomegalodon, 454 

 Neorthophlebia, 813 

 Neoschizodus, 456 

 Neothyris, 408 

 Nephriticeras, 604 

 Nephrops, 764 

 Neptocarcinus, 767 

 Neptnnea, 557 

 Neptunus, 767 

 Nereites, 141 

 Nerinea, 549 

 Neriuella, 549 

 Nerita, 534 

 Neritaria, 534 

 Neritina, 534 

 Neritodomus, 534 

 Neritoma, 534 

 Neritomopsis, 533 

 Neritopsis, 534 

 Neumayria, 603 

 Neusina, 26 

 Neverita, 543 

 Nevvberria, 401 

 Nicliolsonella, 334 

 Nicholsonia, 112, 345 

 Nicomedites, 645 

 Nieszkowskia, 725 

 Nileus, 719 

 Ninella, 529 

 Nipterclla, 57 

 Nipterocrinus, 204 

 Nisusia, 380 

 Nodelea, 324 

 Nadicrescis, 326 

 Nodosaria, 30 

 Noetia, 443 

 Noetlingia, 394 

 Nomismoceras, 631 

 Norella, 399 

 Norites, 633 

 Normann ites, 663 

 Nothoceras, 613 

 Nothozoe, 751 

 Notothyris, 403 

 Novaculina, 495 

 Nubecularia, 37 

 Nucleatula, 401 

 Nucleocrinus, 171 

 Nucleolites, 289 

 Nucleospira, 415 

 Nucula, 440 

 Nuculana, 440 

 Nuculina, 441 



