556 



COMPARATIVE ANATOMY 



Moeandrina, 71 

 Magosphcera, 11 ; planula, 11 

 JUaja, 299 ; Zocea of, 396 



,, squinado, nervous system, 346 

 Mala interna and exterua, 446 

 Malacobddlina, 178 

 Malacodermata, 44% 

 Malacostraca, 292 ; pleopopa, 324 

 Mallophaga, 440 

 Malpighian vessels, 460, 462 ; (Arachn. ), 



525; (Tardigr.), 545 

 Mantidce, 439 

 Mantispa, 441 

 Margelis ramosa, 68, 67 

 Marginal lobes, 71, 92 ; vesicles, 75 

 Mastigophora, 7 

 Mastobranchus, 253 

 Mecostethus, 439 

 Medusce, 67, 71 

 Megalopa, larva, 396 

 Megaloptera, 441 

 Melicerta, 185 

 Meloidce, 441 



Melolontha vulgaris, sexual organs, 486 

 Melophagus, 443 



,, ovimus, sexual organs, 486 



Mermecophila, 439 

 Mermis nigrescens, 179 

 Mermithidce, 179 

 Merocytes, 126 

 Merostomce, 1+15 

 Mesenterial filaments, 75, 83 

 Mesostoma, 134 > intestinal and nervous 

 system, 142 ; pharyngeal 

 apparatus, 139 

 ,, Ehrenbergii, sexual {organs, 



158 



Mesothorax, 444 

 Meta, 510 

 Metagenesis, 115 

 Metanauplius larva, 389 

 Metapneustic traclieal system, 482 

 Metathorax, 444 

 Metazoa, 4 ; divisions of, 57 

 Microlepidoptera, 442 

 Micromeres, 122-131 

 Micrommata, 510 

 Micronucleus, 9, 18 

 Micropteryx, 442 

 Micropyle, 28 

 Microspores, 20 

 Microstoma, 134 



linear e, 166 



Microthdyphonidce, 509 

 Miliola, 4, 5 

 Millepora, 67 

 Miris, 440 

 Misidce, 297 

 Mitrocoma, 94 

 Moina, 290 



rectirostris, ontogeny, 397 

 Monas, 8 

 Monera, 2, 4 



Moniligaster, 181 



Monocystidce, 9 



Monogenetic Trematoda, 134 



Monostomum, 134 



Monothalamia, 16 



Monotus, 134 



Monozoa, 134 



Mutter's larva, 168 



Munnopsis typica, antennules, 308 



Muscidce, 443 ; development, 500, 501 



Mygale, 510 ; anatomy, 531 



,, ccementaria, digestive apparatus, 



524 



Myoblasts, 49 

 Myophriscs, 15 

 Myrianidce, 182 

 Myriapoda, 438 

 Myrmeleon, 441 



Mysidce, 297 ; antennal gland, 369 

 My sis flexuosa, thoracic feet, 321 



,, relicta, 349 



,, larva, 298, 392 

 Mysodopsis, 365 

 Mystacides, 441 

 Myxicola, 182 

 Myxilla, 61 

 Myxodiction, 4 

 Myxopodia, 14 

 Myzostoma, nervous system, 224 ; section, 



263 



,, cirriferum, organisation, 262 

 Myzostomidce, 182 



NADINA, 134 



Naidomorpha, 181 



Nate, 181 

 ,, barbata, 267 



Narcomedusae, 69 



Nassella, 7 



Nassellaria, 7 



JVaucoris, 440 



Nauplius, 307, 386, 390 



Nausithoii, 72, 11 ; sensory bodies, 96, 

 116 



Nebalia, 293 ; antennules, 308 ; mandibles, 

 311 ; olfactory tubes, 356 ; 

 pleopoda, 324 ; thoracic foot, 

 317 

 ,, Geo/royi, 293 



Nebalidce, 293 



Nebaliopsis, 292 



Nectophore, 110, 112 



Nemathelmia, 178 



Nematocysts, 39, 81 



Nematoda, 178 ; diagram of nervous sys- 

 tem, 218 



Nemertes, 178 



Nemertina, 178; anterior end of body, 

 217 ; diagram of proboscis, 198 ; in- 

 testinal canal and genital organs, 205 ; 

 larva, 274; nephridial and circulatory 

 system, 235 ; section through body, 192 



Nemocera, 443 



