INPEX. 



637 



boues, 487 ; Hallux, 491 ; M. pyra- 

 midalis, 196 ; Cerebral commissures, 

 508 ; Cerebellum, 510 ; Stapes, 538 ; 

 Turbinate bones, 517; Sinus maxil- 

 laris, 548 ; Milk teeth, 552 ; Thyroid 

 gland, 551; Stomach, 558; Liver, 

 564; Auricles, 583; Venee cavEe, 592 ; 

 Kenal organs, 605 ; Oviducts, 615 ; 

 Copulatory organs, 622 ; Erectile 

 bodies, 623; Scrotum, 618; Vas 

 deferens, 618 ; Testes, 618. 

 Medusae — Gelatinous tissue, 25 ; Cartilage 

 cells, 26 ; Cartilaginous skeleton, 38 ; 

 Nervous system, 109. 

 Melolontha— Mid-gut, 272; Heart, 283; 



Generative organs, 304. 

 Menobranchus — Vertebrjc, 432; Enteric 



canal, 561 ; Trachea, 571. 

 Menopoma — Vertebrae, 432 ; Hind-limb, 



488 ; Trachea, 571. 

 Mermis— Excretory organ, 174; Genera- 



tive organs, 185. 

 Mesostomum — -Nervous system, 145 ; Vis- 

 ual organs, 154. 

 MicrostomcEe — Generative organs, 183. 

 Mites— Renal concretions, 278. 

 Mnemidas — Axes, 101. 

 Moeandrina — Colonies, 100. 

 Molgula — Nervous system, 395; Sexual 



organs, 407. 

 Molpadia — "Lungs" 216; Cuvierian or- 

 gans, 216 ; Polian vesicles, 223. 

 Mollusca — Connective tissue, 24 ; Carti- 

 laginous skeleton, 38 ; Dermal bran- 

 chice, 46 ; General review, 315 ; Clas- 

 sification, 316 ; Bibliography, 317 ; 

 Form of body, 318; Velum, 318; 

 Appendages, 325 ; Integument, 328 ; 

 Cilia, 328; Shell, 330; Branchiee, 335 ; 

 Nervous system, 343 ; Sensory organs, 

 351 ; Tentacles, 352 ; Visual organs, 

 353 ; Auditory organs, 358 ; Alimentaiy 

 canal, 358; Pharynx, 359; Radula, 

 360 ; Liver, 364 ; Pancreatic gland, 

 356; Ccelom, 367; Vascular system, 

 368; Blood-fluid, 375; Excretory 

 organs, 46, 375 ; Generative organs, 

 380. 

 Monitor— Frontals, 459; Pelvis, 485; Eye, 



529. 

 Monodelphia — Stapes, 538; Genital canal, 



615 ; Scrotum, 618. 

 Monotremata — Mammary glands, 421 ; 

 Odontoid process, 437; Episternum, 

 444; Coronoid process, 467; Coracoid, 

 476 ; Scapula, 476 ; Marsupial bones, 

 487 ; M. pyramidalis, 496 ; Cerebral 

 commissures, 508 ; Cerebellum, 510 ; 

 Olfactory nerve, 515; Eye, 530; 

 Lagena, 536 ; Stapes, 538 ; Auditory 

 meatus, 539 ; Horny teeth, 549 ; 

 Thyroid gland, 554 ; Stomach, 558 ; 

 Cloaca, 563, 620 ; Foramen ovale, 58 1 ; 

 Venae cavao, 592 ; Oviducts, 615 ; 



Testes, 618 ; Vas deferens, 618 ; Copu- 

 latory organs, 622. 



Mormyrus — Electric organs, 500. 



Moschidae — Manns, 483. 



Muelleria — Cuvierian organs, 216. 



Murcx— Siphon, 322 ; Dermal glands, 329 ; 

 Proboscis, 361 ; Anal glands, 362. 



Mus — Uterus, 615. 



Mustelina^Caecum, 562. 



Mustelus — Ovaries, 611. 



Musca — Proboscis, 260; Malpighian ves- 

 sels, 277. 



MusoidfB— Heart, 283. 



Mya — Ganglia, 346. 



Mygalida — Lungs, 291. 



Myrianida — Appendages, 136 ; Visual 

 organs, 135. 



Myriapoda — Head, 235 ; Form of, 237 ; 

 Gnathites, 244 ; Integument, 248 ; 

 Nervous system, 255 ; Tactile rods, 

 260 ; Eyes, 265 ; Enteric canal, 260 ; 

 Salivary glands, 274; Malpighian 

 vessels, 276 ; Renal concretions, 278 ; 

 Circulatory system, 283 ; Trachea?, 

 280; Germ-glands, 292 ; Generative 

 organs, 299 ; Seminal elements, 

 305. 



Mysis — Branchiee, 241 ; Auditory vesicles, 

 2G1; Heart, 281; Female organs, 

 294 ; Seminal elements, 305. 



Mytilidse — Respiratory cavity, 320. 



Mytilus — -Byssus gland, 329 ; Branchia3, 



336 ; Genital canal, 381. 

 Myrmecophaga — Jugal, 466. 

 Myxinoidea — Auditory capsules, 448 ; 

 Trunk muscles, 494 ; Brain, 504 ; 

 Visceral nervous system, 523 ; Laby- 

 rinth, 533 ; Systemic arteries, 585 ; 

 Carotids, 585 ; Kidney, 603 ; Ovaries, 

 610. 

 Myzostoma — Intestinal tube, 163. 



Naiades — Byssus gland, 329 ; Auditory 

 vesicles, 359. 



Narcine — Electric organs, 500. 



Nassula — Pharynx, 85. 



Natatores — Anal glands, 420 ; Optic bulb, 

 529; Pecten, 531; Stomach, 558; 

 Trachea, 571 ; Lymphatic hearts, 

 599 ; Copulatory organs, 621. 



Nauplius — Appendages, 238 ; Eyes, 264. 



Nautilus — Funnel, 325 ; Copulatory 

 organs, 327 ; Shell, 333 ; Respiratory 

 organs, 340 ; Cephalic cartilage, 342 ; 

 Nervous system, 350, 351 ; Eye, 

 354; Otocyst, 357; Pharjmx, 362; 

 Caeca, 363 ; Circulatory centres, 368 ; 

 Branchial veins, 373 ; Excretory or- 

 gans, 379 ; Oviduct, 386. 



Nemathelminthes — Muscular system, 142 ; 

 Muscular fibres, 144 ; Nervous sys- 

 tem, 147 ; Alimentai-y canal, 157 ; 

 Genital products, 1 90. 



Nematodes — ^ Muscular system, 142 j 



