INDEX 



803 



Malacocotylea, 249 See Digenetica 

 Malacostraca, 552*, 556, 566, 578, 579, 



581, 582, 586 

 Malaria parasites, 88, 89 

 Malleus (of Rotifera), 319 

 Mallqphaga, 618* 



Malpighian tubes, 601, 609 : of Scor- 

 pion, 641 : of Arachnida, 652 : of 

 Tardigrada, 659 



Mandibles See Appendages 



Manducation, 425* 



Mantidce., 621 



Mantle, of Anodonta, 663, 666 : Pele 

 cypoda, 680 : Amphineura, 694 

 Triton, 706 : Gastropoda, 722 

 Scaphopoda, 737 : Sepia, 741 

 Nautilus, 759 



Mantle -groove, 363 



Mantle lobes, 355 



Manubrium, of Medusae, 130, 135 : of 

 Obelia, 131 : of Brachionus, 319 



Marginal lappets, of Aurelia, 168, 169*, 

 178 



Margiial sense organs, 136* 



Marginal tentacles, of Aurelia, 168, 

 169* 



Marine Annelids, 429 



Mastax of Rotifera, 319 



Mastiyamceba, 72, 73 



Mastigophora, 45* : Example, 69 : 

 Classification, 71 : General organisa- 

 tion, 71 : Systematic position of the 

 example, 71 



Matrix of connective tissue, 27* 



Maturation, 20*, 22 



Maxilla See Appendages 



Maxillary palp See Appendages 



Maxillipeds See Appendages 



Maxillulae, 623* 



May-flies, 618 



Measly pork, 306 



Mecoptera, 621* 



Medulla, of Actinosphcerium, 58, 59 : 

 Monocyrtis, 82 : Paramcecium, 90, 91 



Medullary sheath, of Nerve'-fibre, 30*. 

 31 



Medusa-buds, of Obelia, 130 



Medusae, of Obelia, 135, 136 



Megadrili, 455*, 456 



Megagametes, of Flagdlata, 79* : Spo- 

 rozoa, 87, 88, 89 : Ciliata, 100, 101 



Megagametocyte, 87, 88 



Megalaesthetes, 699 



Megalopa stage, 585 



Megameres, 700, 730 : of Ctenophora, 

 215, 216 : of Polyclad, 268, 269 : of 

 Chiton, 700 : of Gastropoda, 730 



Meganucleus, of Dinoflagellata, 81 : 

 Paramoscium, 90, 91, 95 : of Ciliata, 

 95 



Megaspheric forms, 56, 57 



Megaspores, of Radiolaria, 65 



Megazooid, of Vorticella, 98, 99 



Meleagrina, 678, 692 

 Meleagrina margaritifera, 692 

 Meiicerta, 321, 323, 324, 325 

 Melolontha, 628 

 Membranes, 26 



Membranipora, 340, 346 



Mentum, 605 



Meridional canal, 212 



Meroblas;ic segmentation, 23* 



Merogony, 23* 



Merozoa, 249* See Polyzoa 



Merozoite, 86*, 87, 88 



Mesenchyme, 382 



Mesenteric filaments, of Sea-anemone, 

 186* : of Flabellum, 203 



Mesenteries, of Sea-anemone, 180*, 

 182, 185, 186, 190, 191 : Arrange- 

 ment in Actinozoa, 196 



Mesenteron, 186, 640* 



Mesoblast, 24* 



Mesoderm, 24*, 216 



Mesoderm bands, of Ascaris, 304 : of 

 Periplaneta, 614 



Mesoglrea, 111*, 112 : of Obelia, 132* 



Mesonemertini, 291* 



Mesopodium, 706, 719 



Mesosoma, 638* 



Mesostomum, 267 



Mesothorax, 606 



Mesotrochal, 474* 



Mesozoa, 227 



Messmateism See Commensalism 



Metabolism, 13* 



Metacrinus interruptus, 415 



Metagenesis, 41* : of Foraminifera, 57, 

 58 : Obelia, 141 : Leptolinse, 152 : 

 Trachylinae, 156 : Aurelia, 172 : 

 Liver-Fluke, 240 : Tcenia, 246 : 

 Platyhelminthes, 270 : Nematoda, 

 304 



Metameres, 43*, 510 



Metamerism, 510, 511 



Metamorphosis, of Trachylinae, 156 : 

 Sea-anemone, 191 : Platyhelminthes, 

 268 : Nemertinea, 290 : Phoronis, 

 351, 352 : Asterina, 381 : Echino- 

 dermata, 421 : Antedon, 423 : Chse- 

 topoda, 475 : Apus, 525 : Crustacea, 

 582 : Insecta, 634 



Metamorphosis, retrogressive See De- 

 generation 



Metanauplius, 526 



Metanemertini, 291* 



Metapodium, 706, 719 



Metathorax, 606 



Metazoa, 20*, 106 



Metentera, 186* 



Micraesthetes, 699 



Microdrili, 455*, 463 



Microgametes, of Flagellata, 79* : Spo- 

 rozoa, 86, 87, 88 : Ciliata, 100, 101 



Microgametocyte, 88 



Microgromia, 51, 52 



