INDEX. 
Motor end-organs, 289 
Motor tracts, 476 
Moults, larval, 2 
Mouth armature of larva, 37 
Mouth of imago, 136, 390 
of newly-hatched larva, 41 
organs of Bombylius, 150 
of Caterpillars, 39 
of Culex, 150 
of Lepidoptera, 128 
of Tipula, 150 
Movement, effect of, on vision, 571 
Movements of proboscis, 139 
of wings, 203 
Mucin, 265 
Mucinogenic cells, 279 
Mucoid degeneration of cells, 265 
Muller on auditory mechanisms, 
595 
on compound eye, 522 
on germinal vesicle, 711 
on parovaria, 674 
on sensation, 499 
theory of vision of, 554 
Miiller’s ganglion, 624, 625 
organ, 586, 600 
Musca corvina, 30 
domestica, 30 
Muscidae, 30 
amnion of, 243 
development of, 230 
development of nervous system 
in, 483 
Muscles, classification of, 218 
cutaneous, of larva, 50 
development of, 287, 336 
dorsales, 187, 22 
great thoracic, 187 
development of, 336 
histology of, 282 
histolysis of, 297, 298 
lateral, 220 
nerve terminations in, 289 
of head, 219 
of larva, 50 
of legs, 221 
of proboscis, 39! 
of wings, 220 
somatic, varieties of, 282 
visceral, structure of, 283 
wing, structure of, 283 
Muscular system, 218 
Musculus accessorius, 220 
compressor vestibuli, 361 
765 
Musculus dilator pharyngis, 390 
gracilis, 221 
Myopa, abdominal sterna of, 739 
Myrmecia, hearing in, 498 
NACHEMBRYOLOGIE, 12 
Nassonow on segmental organs in 
Insects, 707 
Nautilus, eye of, 507 
Nebenkern, 269. See Paranucleus 
Neck, 178 
development of, 320 
Nematocera, 29, 30 
antennze of, 585 
See Culex and Tipula 
Nemertids, embryology of, 24 
Nephila, webs of, 497 
Nerve-cells, 67, 289 
of pericardium, 649 
Nerve-centres, 66, 433 
relation to those of Vertebrates, 
111 
See Brain, Thoracic ganglion, 
Stomogastric nerve, etc. 
Nerve end-organ. See End-organ, 
Retina, Chordotonal organs, 
etc. 
Nerve-fibres, 289 
Nerve, median, of larva, 57 
pericardial, 649 
roots of thoracic ganglion, 435 
terminations in muscle, 289 
Nerves, abdominal, 436 
accessory dorsal, 436 
antennal, 469 
cardiac, 649 
cells in, 289 
cerebral, 453 
development of, 324, 328 
dorsal, 436 
infra-cesophageal, 63 
labral of larva, 63 
lateral of larva, 64 
maxillary, 466 
of Dogiel, 478 
of Lemoine, 478 
of mouth organs, 113 
of ocelli, 467 
of proboscis, 402 
of rectal papilla, 420 
of simple eye in larva, 82 
pharyngeal, 466 
stomogastric, 228 
