INDEX 



627 



kiorodrill, 466* 



Microgametes, of Flagellata, 76* : Spo- 



rozoa, 84, 85, 86 : Ciliata, 99 

 Microgametocyte, 84, 85 

 Mierogromia, 50, 56 

 Microhydra, 148, 167 

 Micromeres, of Ctenophora, 217, 218 

 Micromeres, of Polyclad, 274 

 ilicronucleus, of Ciliata, 93 : of Dino- 



fiagellata, 78 

 Micronucleus, of Parama-ciinn, 88, 89 

 Micropyle, 20 



Mioropyle, of Cephalopoda, 798 

 Mierospheric forms, 55, 56 

 Microspores, of Radiolaria, 63 

 Microstormim, 282, 283 

 Microzooid of VorticeUa, 96, 98 

 Miescher'a corpuscles, 88* 

 Migration, 285* 

 Mi/iola, 52 

 Millepora, 156 



Millepora alcicomls, 157, 158 

 Millipedes, 526, 614, 61.') 

 Minya.'i, 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 

 MoUuscoida, 340* 

 MoUuscolda, mutual relationships of the 



classes, 372 

 Mongrels, 2* 

 Moniezia, 288 

 Monocyclica, 413* 

 MoNOOYSTis AtiiLis, 80, 81 : Systematic 



position, 82 

 Monoecious, 39* 

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



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

 Mouomyaria, 698* 

 Monosiga, 77 

 Monotus, 255 

 Monozoa, 253* 

 Morphology, 3* 

 Morula, 22* 

 Moruloidea, 230* 

 Mosquitoes, 635, 651 

 Mother-cyst, 282 

 Mother-of-pearl, 684 

 Moths, 635 

 Month papilla, 376* 

 Movable cheek, 605* 

 Mulberry body, 22* 

 Multicellular, 19* 

 Multicellular gland, 25* 

 Mailer's larva, 275 

 Midticilia, 93, 94 

 Multiple assion, of Eugleim, 69 

 Murex, 744, 747 



Muscle, striated, 28*, 2S : noh'Striated, 

 28*, 2» 



Muscle processes, Hydrai, 148 



Muscles, 37* 



Miiscular fibres of Sponges, 111 



Muscular system, of Aurelia, 172 : Sea- 

 anemone, 186, 188 : Magellania, 364 : 

 Brachiopoda, 368 : ffirudo, 508, 509 : 

 Apm, 532 : Axtacus, 546, 547 : Crus- 

 tacea, 593 : Periplaneta, 624 : A nv- 

 donta, 684 : Pelecypoda, 697 



Muscular tissue, 28*, 29 



Mushroom coral, 205 



Mussels, 680 



Mya, 696 



Mya arenaria, 698 



Mycetozoa, 45* : Example, 66, 67 : Spo' 

 rangium, 66, 67 • Capillitium, 66, 67 t 

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

 Plasmodium, 66, 67: General remarks, 

 67 : Protomyxa, 67 



Myomeres, of Apus, 532 



Myosoma, 354 



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

 tive characters and classification, 614 ; 

 General organisation, 614 : Externat 

 features, 615 : Integumient and Body 

 wall, 617 : Alimentary canal, 617 

 Heart, 617 : Respiratory system, 617; 

 NervoBs system 617 : Reproduction, 

 618: Ovum, 618: Fossil remains, 618 



MyriotMa, 146, 146, 148 



Mysidacea, 567*, 581, 382, 594, 597, 593, 

 603 



Mysis, 567, 582 



Mytilus, 695, 697, 702, 703, 708 



MytUus edulis, 697, 702 



Mytilus latus, 697 



Myxidium lieberkuhnii, 87 



Myxoholus miilleri, 87 



Hyxospongise, 120, 126 



Myxosporidea, 87* Characteristic 



features, 87 



Myzostoma, 489, 490, 491 



Myzostomida, 489*, 490, 491 



N. 



N 



ACRE, 684* 



Kaiidomorpha, 473 



Nais, 486 



Narcomedusse, 142*, 154, lOfi 



Natural History, 1* 



Nauplius, 538, 539 



Nausithoe, 180 



Nautiloids, 680, 790 



Nautilus macromphalus, 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- 



