770 



INDEX 



Monogenetica, 238% 250, 252, 253, 254, 

 256 



Monomyaria, 649 



Monosiya, 72 



Monotiis, 240 



Monozoa, 238* 



Morphology, 3 



Morula, 20* 



Mosquitoes, 586, 590 



Mother-cyst, 262 



Moths, 587 



Mouth papillae, 347* 



Movable cheek, 558* 



Mulberry body, 20* 



Miiller s larva, 258 



MuHicUia, 84, 85 



Multiple fission, of Euglena, 64 



Murexy 693, 696 



Muscle, striated, 26*, 27 : non-striated, 

 26,27 



Muscle processes, Hydra, 136, 137 



Muscles, 35 



Muscular fibres of sponges, 102 



Muscular system, of Aurelia, 160 : Sea- 

 anemone, 174, 175 : Magellania, 335 : 

 Brachiopoda, 339 : Hirudo, 467, 468 : 

 Apus, 489 : Astacus, 504, 505 : Crus- 

 tacea, 547: Periplaneta, 575: Ano- 

 donta, 635 : Pelecypoda, 648 



Muscular tissue, 26*, 27 



Mushroom coral, 192 



Mussels, 631 



Mj/a, 647 < 



.My a arenaria, 649 



Mycetozoa, 43* : Example, 61, 62 : Spo- 

 rangium, 62 : Capillitium, 62 : Spores, 

 62 : Flagellula, 62 : Plasmodiuin, 63 : 

 General remarks, 63 : Protomyxa, 63 



Myomeres, of Apus, 490 



Myriapoda, 484 



Myriapoda, 566 : Distinctive characters 

 and classification, 566 : General organ- 

 isation, 567 : External features, 567 



Myriothela, 137 



Mysis, 523, 537, 553 



Mytilus, 646, 652, 654, 655, 656 



Mytihis tdulis, 648, 653 



Mytilus latus, 648 



Myxidium litberkuhnii, 78 



Myxobolus mulleri, 78 



Myxospongi*, 103*, 111, 115 



Myxpsporidea, definition, 76 : Character- 

 istic features, 78 



stoma, 448 

 -Myzostomida, 448 



N. 



N 



ACRE, 635* 



Naidomorpha, 428* 

 AW?, 446 

 Narcomedusae, 132* 



Natural History, 1* 



Nauplius, 496, 497^ 



Nausithrk, 169 



Nautiloids, 750 



NAUTILUS POMPILIUS. ShlJ^^'25, 726 : 

 External characters of sofHI^^ 726 : 

 Mantle and mantle-cavity,^^3^: En- 

 teric canal, 730 : Heart and circulation, 

 732 : Renal organs, 732 : Nervous 

 system, 734 : Sense-organs, 734 : Re- 

 productive organs, 735 : Systematic 

 position, 737 



Nebalia, 535, 536 



Neck, of cockroach, 573 



Nectocalyx, 149* 



Nekton, 8* 



Nemathelminthes, 221, 275, 297 



Nematocyst, 73, 79, 86, 123* 



Nematoda, 275 : Example, 275, 281* : 

 External characters, 283 : Body-wall, 

 283 : Enteg| canal, 283 : Coelome, 



284 : Nervo^l system, 285 : Eye-spots, 



285 : Reproctive organs, 285 : De- 

 velopment, ^86, 287 : Life-historv, 

 286 



Nematogene, 217* 



Nematoidea, 282*, 284, 285 



Nemertinea, 273* : General features, 

 268-271 : Alimentary canal, 269 : 

 Blood-vessels, 270, 271 : Excretory 

 vessels, 270, 271 : Nervous system, 

 270 : Lateral organs, 269, 271 : Eyes, 

 272 : Otocysts, 273 ; Reproductive 

 system, 273 ; Development, 273 



Neo-crinoidea, 380* 



Neomenia, 663, 664, 667, 668 



Nephelis, 476, 477, 478, 481 



Nephridiopore, 411, 418 



Nephridium, 403, 411*, 412, 423, 440 



Nephridium, provisional, 440 



Nephrostome, 411, 423, 440 



Nereidce, 428, 447 



NEREIS, External features, 404 : Enteric 

 canal, 406 : Body-wall, 408 : Vascular 

 system, 409 : Nervous system, 409 : 

 Sense-organs, 410 : Excretory organs, 

 411 : Reproductive organs, 412 : Indi- 

 vidual variation, 413 : Development, 

 413 : Systematic position, 428 



Nerve-cell, 27*, 28 



Nerve-fibres, 27*, 28 



Nervous system, 14, 29, 35* : Obelia, 

 123 : Leptolinre, 138 : Aurelia, 160 : 

 Tealia, 179 : Hormiphora, 203 : Planaria, 

 224 : Distomiim, 228 : Tcenia, 233 : 

 Platyhelminthes, 252 : Nemertinea, 

 270: Ascaris, 279: Nematoda, 285: 

 Acanthocephala, 291 : Chfetognatha, 

 294 : Srachionus, 301 : Rotifera, 308 : 

 Dinophilea, 310 : Gastrotricha, 312 : 

 Polyzoa, 316, 324 : Endoprocta, 326 : 

 Phoroni*, 329 : Magellania, 336, '337 : 



