INDEX 



827 



MicrOdrili, 466* 



Microgametes, of Flagellata, 76* : Spo- 



rozoa, 84, 85, 86 : Ciliata, 99 

 Microgametocyte, 84, 85 

 Microgromia, 50, 56 

 Microhydra, 148, 167 

 Micromeres, of Ctenophora, 217, 218 

 Micromeres, of Polyclad, 274 

 Micronucleus, of Ciliata, 93 : of Dino- 



flagellata, 78 



Micronucleus, of Parainn'ciinii, SS, 89 

 Micropyle, 20 



Micropyle, of Cephalopoda, 798 

 Microspheric forms, 55, 56 

 Microspores, of Radiolaria, 63 

 Microatomum, 282, 283 

 Microzooid of Vorficel/d, 96, 98 

 Miescher's corpuscles, 88" 

 Migration, 285* 

 Miliola, 52 

 Millepora, 156 



MiUepora alcicornis, 157, 158 

 Millipedes, 526, 614, 615 

 Mini/nx, 202, 226 

 Miocene, 7 

 Miracidium, 244* 

 Mites, 526, 653, 661, 665, 668, 673 

 Mitosis, 16*, 17 

 Mitotic division See Mitosis 

 Modiola, 698, 702 

 Mollusca, 680* : General remarks. 



804 



Molluscoida, 340* 

 Molluscoida, mutual relationships of the 



classes, 372 

 Mongrels, 2* 

 Moniezia, 288 

 Monocyclica, 413* 

 MONOCYSTIS AOiLrs, 80, 81 : Systematic 



position, 82 

 Monoecious, 39* 

 Monogenetica, 252*, 258, 259, 265, 268, 



269, 272, 273, 277, 284, 286, 287 

 Monomyaria, 698* 

 Monoxiga, 77 

 Monofus, 255 

 Monozoa, 253* 

 Morphology, 3* 

 Morula, 22* 

 Moruloidea, 230* 

 Mosquitoes, 635, 651 

 Mother-cyst, 282 

 Mother-of-pearl, 684 

 Moths, 635 

 Mouth papilla, 376* 

 Movable cheek, 605* 

 Mulberry body, 22" 

 Multicellular, 19* 

 Multicellular gland, 25 * 

 Miiller's larva, 275 

 Multic-ilia, 93, 94 

 Multiple fission, of Enylena, 69 

 Murex, 744, 747 



Muscle, striated, 28*, 29 : non-striated, 

 28*, 29 



Muscle processes, Hydra, 148 



Muscles, 37* 



Muscular fibres of Sponges, 111 



Muscular system, of Airrr/itt, 172: Sea 

 anemone, 186, 188: M<j<//'t/ii<t, 364: 

 Brachiopoda, 368: Hirndo, 508, 5<1) : 

 Apit*. 532: Avtacux, 546, 547: Crus- 

 tacea, 593 : Periplanefa, 624 : A n- 

 (/<>n/(t, 684: Pelecypoda, 697 



Muscular tissue, 28*, 29 



Mushroom coral, 205 



Mussels, 680 



Mya, 696 



Mya arenaria, 698 



Mycetozoa, 45* : P]xample, 66, 67 : Spo- 

 rangium, 66, 67 : Capillitium, 66, 67 : 

 Spores, 66, 67 : Flagellula, 66, 67 : 

 Plasmodium, 66, 67: General remarks, 

 67 : Protomyxa, 67 



Myomeres, of Apn#, 532 



Myosoma, 354 



Myriapoda, 526, 614*, 677, 678 : Distim- 

 tive characters and classification, Iil4 : 

 General organisation, 614 : External 

 features, 615 : Integument and Body 

 wall, 617 : Alimentary canal, 617 

 Heart, 617 : Respiratory system, 617 : 

 Nervous system 617: Reproduction. 

 618 : Ovum, 618 : Fossil remains, 618 



Myriothda, 145, 146, 148 



Mysidacea, 567*, 581, 582, 594, 597, 599, 

 603 



Mysis, 567, 582 



Mytilu*, <>9.">, 697, 702, 703, 708 



Mytiltts ednlift, 697, 702 



My til as latus, 697 



Myxidium lieberkuhnii, 87 



MyxobolvA miilleri, 87 



Myxospongiae, 120, 126 



Myxosporidea, 87* : Characteristic 

 features, 87 



Myzo*tonut, 489, 490, 491 



Myzostomida, 489*, 490, 491 



N 



ACRE, 684* 



Naiidomorpha, 473 



.Y"/x, 486 



Narcomedusae, 142*, 154, 155 



Natural History, 1* 



Nauplius, 538, 53! I 



Naiixi/hiii , 180 



Nautiloids, 680, 790 



X'titfifH* macromphattts, 779, 789 



NAUTILUS POMPILIUS, 776 : Shell, 776 : 

 External characters of soft parts, 777 : 

 Mantle and mantle-cavity, 781 : En- 

 teric canal, 783 : Coelome, 783 : Heart 

 and circulation, 783 : Renal organs, 

 786 : Nervous system, 787 : Sense- 



