716 



INDEX 



Neural spine, 147 



Neural tube, Craniata, 73* 



Jfeursnteric canal, 34, 58, 59, 29U 



Neurenterio passage, 183 



Neuroccele, 2*, 34, 35, 49, 53, 57, 58 



Neuroglia, 98* 



Neuroniast-organs, 1U7*, 108 



Neuromasts, 107*, 108 



Neuron, 44, 49, 50, 53, 57, 58, 98 



Neuropore, 34, 54, 55, 58, 61, 62 



Newts, 264, 293, 296 



New Zealand, comparison of- its- physical 

 conditions and fauna with those of 

 Great Britain, 619 



New Zealand region, 632 



Nictitatingineinbrane,of Elasmobranchii, 

 179 : Frog, 265 :- Lizard, 315 : Pigeon, 

 380 : Rabbit, 446 : Jlamnialia. 580 



Nidicoke, 442* 



Nidifuga;, 442* 



Non-Ruminants, 482* 



Nostril, 109 



Noiidanida;, 169, 178 



Notochord, 1*: Balanoglossus, 6 : (Jcpha- 

 lodiscus, 10, 12 : Rhabdopleura, 12, 13 : 

 Appendicularia, 24 : Ascidian larva, 

 34 : Amphioxm, 47, 49, 58, 59 : Crani- 

 ata, 71, 72 — See Vertebral column 



Notochordal sheath, 47, 72, 73 



Notochordal tissue, 47, 72, 73 



Nolornis, 426, 430, 620, 642 



Ndloribia alba, 632 



Nolorycles, 495, 579, 581 



Noloryctts lyphlopis, 495 



Nototherimn, 642 



Nololherium mifchdti, 603 



Notolrema -marsupium, 309, 310 



Nuchal plates, 344* 



Nucleus, of SalpiE, 29 * 



Nurse, Doliolum, 39*, 41 jV 



0. 







'bliquk septum, 400 

 Obliquus exteruus, 274, 275 

 Obliquus internum, 274, 275 

 -Obstetric Toad, 308 

 Obturator foramen, 457 

 Obturator notch, 392 

 Occipital condj'le 

 Occipital plane, 513* 

 Occipital region, 76* 

 Occipital segment, 80* 

 Oceanic Islands, 632* 

 ■ Octanites, 415 

 Oi'tacueniidic, 27 

 Oclacnemuny'ZT, 28, 29 

 Octodii'-ttis, 621 

 Octopods, 634 



Oculomotor nerve, 104 : ganglion, 104 

 Orydromus, 416, 426, 430, 444, 620, 632 



Odontoblasts, 86*, 558, 



Odontoceti, 4S0*, 501, 531; 533, 534, 580, 

 606 



Odontoid process, of Amphibia^ 299 : 

 Lizard, 316 



Odontolcse, 413, 443, 444, 445 



Odontopleryx, 434 



(Jilsophageo-cutaneous duct, Myxinoid, 

 140 



Oikopleura, 22, 24 



Oil-bird, 633 



Oil-gland, 380* 



Oken, Lorenzy 680 . 



Old-world Monkeys, 557 ■ 



Olecranons 321 



Olf-aotory bulb, 100, 157, 212 



Olfactory, capsules, 75* 



Olfactory nerve, 103 



Olfactory peduncle, 194, 239 



Olfactory tracts, 239 



Olfactory lobe, 100* — See Brain 



Olfactory lobe, median : Amphioxxis, 54: 

 Craniata, 100 



Olfactory organ, of Aniphioxus, 54, 55 : 

 Craniata, 109* s Lamprey, 132, 133, 

 134 : Myxinoids, 139 : Dog-tish, 163 r 

 Elasmobranchii, 179 : Trout, 214 ; 

 Ceratodus, 254 : Frog, 284 : Amphibia, 

 308: Lizard, 331: Reptilia, 360: 

 Pigeon, 405 : Mammalia, 580 



Olfactory region, of Skull, 76* 



Olfactory ventricle, 100* — See Brain 



Olivary body, 472* 



Omentum duodeno-hepatio, 324 



Omentum gastro-hepatio, 324 



Omentum, great, 403 



Omosternum, 272, 273 



Onychodactylus, 298 



Opercular, 199 



Operculum, of Balanoglossus, 4 : Crani- 

 ata, 67 : Holocephali, 189 : Trout, 199 : 

 Teleostomi, 225 : Dipnoi, 247, 249 : 

 Tadpole, 291 



Ophidia, 334*, 339, 342, 343, 344, 347, 

 348, 353, 357, 358, 359, 360, 361, 362, 



: 367, 368, 370 



Opisthocoelous, 229*, 298 



Opislhocomm, 416, 420, 421, 633 



Opisthotic, 79*, 80-See Skull 



Opossums, 478, 492, 495, 521,- 524, 563, 

 584, 598, 602 



Opthalmic nerve, 104, 105 



Opthabnicus profundus, 161 



Optic capsules, 75* 



Optic cup, 112, 113* 



Optic chiasma, 159 



Optic foramen, 452* 



Optic lobes, 102*^-See Brain 



Optic nerve, 103 



Optic thalamus, 102* — See Brain 



Optic vesicle 112* 



Optic ventricle, 102*--See Brain 



