864 



NORTH AMERICAN INDEX FOSSILS. 



Lamellicornia, II 447 

 Lampterocrinus, m, II 548 

 Larviformia, II 498 

 Lasioptera, f, II 455 

 Lathrobium, n, II 447 

 Lathyrus, m, I 777 

 Laxispira, f, I 738 

 Leaia, f, II 332 

 Lecanocrinus, m, II 564 

 Leda, f, I 400 

 Legumen, n, I 571 

 Leiocidaris, f, II 586 

 Leiopteria, f, I 424 

 Leiorhynchus, n, I 289 

 Lemmatophora, f, II 431 

 Lepadocrinus, m, II 466 

 Lepas, f, II 371 

 Leperditella, f, II 339 

 Leperditia, f, II 339 

 Lepetopsis, f, I 609 

 Lepiam, n, II 431 

 Lepidechinus, m, II 582 

 Lepidesthes, f, II 583 

 Lepidocidaris, f, 11 580 

 Lepidocoleus, m, II 371 

 Lepidodiscus, m, II 472 

 Lepidoptera, II 452 

 Lepisma, n, II 443 

 Lepismoidea, II 443 

 Lepium, n, II 431 

 Lepocrinites, m, II 466 

 Leptaena, f, I 225 

 Leptobolus, m, I 194 

 Leptocoelia, f, I 351 

 Leptodesma, n, I 425 

 Leptoplastus, m, II 283 

 Leptosolen, m, I 570 

 Leptostrophia, f, I 215, 217 

 Leuroceras, n, II 89 

 Levifusus, m, I 771 

 Lichadidse, II 306 

 Lichas, f, II 306 

 Lichenalia, f, I 125, 165 

 Lima, f, I 509 

 Limnaea, £, I 816 

 Limnaeidae, I 816 

 Limnophilus, m, II 452 

 Limoptera, f, I 422 

 Lindigia, f, II 202 

 Linearia, f, I 567 

 Lingula, f, I 194 

 Lingulasma, n, I 198 

 Lingulella, f, I 192 

 Lingulepis, f, I 193 

 Lingulodiscina, f, I 202 

 Linnaea, f, II 456 

 Linnarssonia, f, I 200 

 Linthia, f, II 601 

 Linuparus, m, II 389 

 Linyphia, f, II 416 

 Liopistha, f, I 531 

 Liospira, f, I 640 



Lirofusus, m, I 778 

 Lispodesthes, f, I 754 

 Lithocromus, m, II 456 

 Lithomyza, f, II 455 

 Lithopsis, f, II 457 

 Lithopsyche, f, II 454 

 Lithortalis, m, II 455 

 Lithostrotion, n, I 76 

 Lithymnetes, m, II 444 

 Litiiites, m, II 72 

 Lobocrinus, m, II 544 

 Lobster, II 389 

 Loculipora, f, I 146 

 Locusta, f, II 444 

 Locustidae, II 443 

 Locusts, II 443 

 Loganograptus, m, I 28 

 Lonchocephalus, m, II 277 

 Lonchodomus, f, II 259 

 Longobardites, m, II 155 

 Lophophyllum, n, I 76 

 Lophospira, f, I 631 

 Loricera, f, II 448 

 Loxandrus, m, II 448 

 Loxoceras, n, II 113 

 Loxonema, n, I 692 

 Loxonematidae, I 691 

 Loxopteria, £, I 426 

 Loxorhynchus, n, II 394 

 Lucina, f, I 555 

 Lumbriconereites, m, II 



242 

 Lunatia, f, I 717 

 Lunulicardium, n, I 427 

 Lyellia, f, I 96 

 Lygaeidae, II 456 

 Lygaeus, m, II 456 

 Lymnophysa, f, I 817 

 Lyriocrinus, m, II 550 

 Lyriopecten, m, I 494 

 Lyrodesma, n, I 481 

 Lyropecten, m, I 502 

 Lyropora, f, I 150 

 Lystra, f, II 457 

 Lyticoceras, n, II 193 

 Lytoceras, n, II 182 



Maclurea, f, I 664 

 Maclurina, f, I 666 

 Maclurites, m, I 664 

 Macraster, m, II 598 

 Macrocephalites, m, II 184 

 Macrocrinus, m, II 545 

 Macronotella, f, II 348 

 Macrostylocrinus, m, II 



554 

 Macrura, II 389 

 Mactra, f, I 571 

 Maelonoceras, n, II 118 

 Malacostraca, II 372 

 Malocystites, m, II 471 



Mammitida, II 223 

 Mangilia, f, I 804 

 Mantelliceratida, II 194 

 Manticoceras, n, II 136 

 Manticoceratida, II 136 

 Maretia, f, II 602 

 Margarita, f, I 704 

 Marginalia, f, I 788 

 Marginellidae, I 788 

 Marsipocrinus, m, II 516 

 Marsiipiocrinus m, II 516 

 Martinia, f, I 340 

 May flies, II 439, 450 

 Mazonia, f, II 416 

 Mazzalina, f, I 783 

 Medlicottia, f, II 150 

 Meekella, f, I 22,2 

 Meekoceras, n, II 153 

 Meekopora, f, I 126 

 Meekospira, f, I 698 

 Megalomus, m, I 410 

 Megambonia, f, I 410 

 Megasecoptera, II 439 

 Megateuthis, f, II 230 

 Megistocrinus, m, II 538 

 Melampus, m, I 814 

 Melania, if, I 740 

 Melaniidae, I 739 

 Melanopsis, f, I 741 

 Mellita, f, II 593 

 Melocrinus, m, II 555 

 Meloidae, II 446 

 Melonites, m, II 583 

 Membranipora, f, I 169 

 Meretrix, f, I 563 

 Meristella, f, I 355 

 Meristina, f, I 351 

 Merostomata, II 399 

 Mesalia, f, I 729, 731 

 MesoDrochus, m, II 452 

 Mesonacis, f, II 263 

 Mesothyra, £, II 383 

 Mesotrypa, f, I 130 

 Metablastus, m, II 478 

 Metacoceras, n, II 98 

 Metacypris, f, II 2,^6 

 Metaplasia, f, I 343 

 Metapolichas, f, II 311 

 Metatirolites, m, II 156 

 Metengonoceras, n, II 214 

 Metoicoceras, n, II 195 

 Metoptoma, f, I 607 

 Michelinia, f, I 89 

 Microcampyli, II 134 

 Microcyclus, m, I 65 

 Microdiscus, m, II 257 

 Microdon, m, I 534 

 Milesia, f, II 455 

 Mitoclema, n, I 120 

 Mitra, f, I 789 

 Mitridae, I 789 

 Mitroceras, n, II 74 



