826 



INDEX 



Magellania, Shell, 360, 361: Body, 362: 

 Mantle-lobes, 362 : Mantle-cavity, 

 362 : Lophophore, 362, 363 ; Food- 

 groove, 362 : Digestive organs, 362 : 

 Body- wall, 363 : Muscular system, 364 : 

 Ccelome, 365 : Blood system, 365 : Ex- 

 cretory organs, 365 : Nervous system, 

 365 : Reproductive organs, 366 : Posi- 

 tion of example, 367 

 Magellania fiai'e.icens, 360 

 Maggot, 649* 

 Maki, 569, 896, 600 

 Malacocotylea, 252 — See Digenetica 

 Malacostraca, 565*, 570, 579, 593, 394, 



596, 597, 601 

 Malaria parasites, 86 

 Malleus (of Rotifera), 325 

 Malpighian tubes, 617, 625 

 Malpighian tubes, of Scorpion, 656 : of 



Arachnida, 668 : of Tardigrada, 675 

 Mandibles— See Appendages 

 Manducation, 434* 

 Mantidrx, 636 

 Mantle lobes, 362 



Mantle, of Anodonta, 684 : Pelecypoda, 



698: Amphineura, 713: Triton, 725: 



Gastropoda, 740 : Seaphopoda, 757 • 



Stpia, 762 ; Nautilus, 781 



Manubrium, of Medusa, 129: of Obelia, 



130 

 Marginal lappets, of Aurelia, 168*, 169, 



179 

 Marginal sense-organs, 135* 

 Marginal tentacles, of Aurelia, 168*, 



169 

 Marine Annelids, 439 

 Mastax of Rotifera, 325 

 Masligamceha, 70, 71 

 Mastigophora, 45* : Example, 67 : Clas- 

 sification, 69 : General organisation, 

 69: Systematic position of the example, 

 70 

 Matrix of connective tissue, 25* 

 Maturation, 19*, 20 

 Maxilla — See Appendages 

 Maxillary palp — See Appendages 

 Maxillipeds— See Appendages 

 Maxillutaj, 638* 

 May-flies, 633 

 Measly pork, 310 

 .Medulla, of Acliaosphceriuni, 57, 58 : 



Monocystis, 80 : Paratnacium, 88, 89 

 Medullary sheath, of Nerve-fibre, 29*, 30 

 .Medusa-buds, of Obelia, 129 

 Medusie, of Obelia, 134, 135 

 IMegadrili, 466*, 467 

 .Megagametes, of Flagellata, 76* : Spo- 



rozoa, 84, 85, 86 : Ciliata, 99 

 Megagametocyte, 84, 85 

 MegalsBsthetes, 717 

 -Megalopa stage, 599 

 -Megameres, of Ctenophora, 217, 218 : 

 of Polyclad, 274 



Meganucleus, of Ciliata, 93: Para- 



mmciiim, 88, 89 : Uinoflagellata, 78 

 Megaspheric forms, 55, 56 

 Megaspores, of Radiolaria, 63 

 Megazooid, of Vorticella, 96, 98 

 Meleagrina, 696, 710 

 Meleayrina margaritifera, 711 

 Melicerta, 328, 330, 331 

 Melolontha, 643 

 Membranes, 24 

 Membranipora, 347 

 Mentum, 622 

 Meridional canal, 213 

 Meroblastic, 22* 

 Merogony, 21* 

 Merozoa, 253* — See Polyzoa 

 Merozoite, 84*, 85, 86 

 Mesenchyme, 389 

 Mesenteric filaments, of Flabellnm, 2C6 : 



of Sea-anemone, 187* 

 Mesenteries, of Sea-anemone, 187, 182* 

 Mesenteries, development of, in Sea- 

 anemones, 192, 193 : Arrangement in 

 Actinozoa, 200 

 Mesenteron, 187 

 Mesoblast, 23* 

 Mesocoele, 356* 

 Mesoderm, 23*, 219* 

 Mesoderm bands, of Periplanela, 631 

 Mesogloea, 110*, 111 . of Obdia, 131* 

 Uesouemertini, 296* 

 Mesopodium, 725, 739 

 Mesosoma, 654* 

 Mesostomum, 272 

 Mesothorax, 622 

 Mesotrochal, 486* 

 Mesozoa, 280 



Messmateism — See Commensalism 

 Metabolism, 13* 

 Metacoele, 356* 

 Metacrinus interruptas, 424 

 Metagenesis, 40* : of Foraminifera, 56 : 

 Obelia, 139 : Leptolinje, 152 : Tra- 

 chylinae, 156 : Aurelia, 173 : Liver- 

 Fluke, 243 : Tainia, 250 : Platyhel- 

 ininthes, 273 : Nematoda, 310 

 Metameres, 43*, 523 

 Metamerism, 523 



Metamorphosis, of Trachylinae, 155: Sea- 

 anemone, 193 : Platyhelminthes, 273 : 

 Nemertinea, 295 : Phoronis, 359 : ^s- 

 terina, 388 : Antedon, 432 : Echino- 

 dermata, 430 : Chsetopoda, 487 : Apun, 

 537 : Crustacea, 597 : Insecta, 649 

 Metamorphosis, retrogressive — See De- 

 generation 

 Metanauplius, 539 

 Metanemertini, 296* 

 Metapodium, 725, 739 

 Metathorax, 622 

 Metazua, 19*, 105 

 Metentera, 187* 

 Micrsesthetes, 717 



