896 



GENERAL INDEX. 



NOM 

 Nomogeny {syn. Heterogeny, Spontaneous 



Generation), iii. 814 

 Notidanidae, characters of, i. 13 

 Notidanus cinereus, ovulation of, i. 598 



teeth, i. 373 



vertebral column, i. 32, 35 

 Notornis, characters of, i. xxxiii 



dorsal vertebrae and sternum, ii. 21, 

 23, 24 



ekull, ii. 57 

 Nototherium, skull of, ii. 335 



teeth, iii. 393 

 Nothosaurus, characters of, i. 16 



pelvic arch and limb, i. 182 



vertebral column, i. 53 

 Nototrema marsupiatum, development of, 

 i. 606 



female organs of generation, i. 581 



tegument, i. 551 

 Numenius, dorsal vertebrae and sternum, 

 ii. 26 



skull, ii. 61 

 Numida, beak of, ii. 150 



lower larynx, ii. 220 

 Nycteris, derm of, iii. 613 



mouth, iii. 387 



0CTODON, mammary glands of, iii. 775, 

 776 

 teeth, iii. 299 

 (Edicnemus, dorsal vertebrae and sternum, 

 ii. 26 

 pelvic limbs, ii. 82 

 Oligodon bitorquatus, teeth of, i. 395 

 Ommatophoca, teeth of, iii. 337 

 Omnivora, characters of, i. xxix. ; ii. 296 

 Ophidia, absorbent system of, i. 459 

 adrenals, i. 543 

 alimentary canal, i. 434 

 blood, i. 501 

 characters of, i. 17 

 fecundation, i. 615 

 oviposition, i. 616 

 development, i. 634, 635 

 generative organs, i. 579 

 male, i. 579 

 female, i. 585 

 hearing, organs of, i. 348 

 heart, i. 507 

 larynx, i. 528 

 liver, i. 448 

 locomotion, i. 259 

 lungs, k 524 



respiratory actions, i. 531 

 kidneys, i. 538 

 muscles of the, i. 224 

 osseous system — 

 skull, i. 146 

 vertebral column, i. 53 

 poison-glands, i. 563 



secretion, the poison - gland, i. 

 563 



ORT 

 Ophidia — continued. 

 scent-glands, i. 563 

 sight, organs of, i. 338 

 sympathetic nervous system, i. 321 

 teeth, i. 393 

 teguments, i. 553 

 epiderm, i. 553 



periodical shedding, i. 553 

 scales, i. 554 

 claws or hooks, i. 554 

 pigment cells, i. 555 

 secreting follicles, i. 555 

 thymus body or gland, i. 565 

 thyroid body or gland, i. 565 

 veins, i. 503 

 Ophidiidse, characters of, i. 10 

 Ophidium, characters of, i. 10 

 Ophidium barbatum, vertebral column of, 



i. 43 

 Ophiocephalus, air-bladder of, i. 491 

 Ophiomorpha, characters of, i. 15 



vertebral column, i. 49 

 Ophisaurus, skull of, i. 158 



teguments, i. 555 

 Opisthoccelia, characters of, i. 17 



vertebral column, i. 69 

 Opisthodelphis ovifera, arteries of, i. 515 

 female organs of generation, i. 588 

 oviposition, i. 616 

 teguments, i. 551 

 Opossum, generation of, iii. 721 



osseous system, ii. 337 

 Orang-cetan. See Pithecus satyrus. 

 Oreophasis, osseous system of, ii. 27, 32, 



36, 65 

 Ornithorhynchus, alimentary canal of, iii. 

 410 

 beak, iii. 383 

 brain, iii. 102 

 crural gland, iii. 639 

 generative organs, iii. 644 

 male, iii. 644 

 female, iii. 678 

 development, iii. 717 

 eye, iii. 246 

 heart, iii. 516 

 jaws, iii. 384 

 mammary organs, iii. 761 

 muscles, iii. 2 

 nervous sjstem, iii. 73 

 olfactory nerve, iii. 208 

 osseous system, ii. 317 

 salivary glands, iii. 397 

 spleen, iii. 560 

 thyroid, iii. 564 

 Ortalida, lower larynx of, ii. 220 

 Orthagoriscus, alimentary canal of, i. 422 

 gills, i. 480 

 kidneys, i. 536 

 muscles, i. 212 

 myelencephalon, i. 271 

 organ of sight, i. 331, 334-336 

 Orthorhynchus, beak of, ii. 147 



