896 



GENERAL INDEX. 



NOM 



Nomogeny (syn. Heterogeny, Spontaneous 



Generation), iii. 814 

 Notidanidse, characters of, i. 13 

 Notidanus cinoreus, 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 



skull, 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 



OCTODON, 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 



tt 



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, i. 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, 

 563 



the poison - gland, i. 



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 



Ophidiidoe, 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, osseoiis system of, ii. 27, 32, 



36, 6-5 



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 system, 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 



