6io 



INDEX. 



PAGE 



Artemia .... 243 

 Arterial arches of Vertebrates 395 

 „ system of embryo of 



higher Vertebrates 395 



,, „ of Fish . 395 



„ „ of Frog . 445 



., .. of Pigeon- . 513 



„ „ of Rabbit 559-60 



Arthrobrandis of Crayfish . 240 



Arthropoda, Classes of 5, 224 



„ General characters of 224 



Arthrostraca . . . 248 



Articulata . . . .218 



Artiodactyla . . S76-579 



„ and Perisso- 



dactyla contrasted 



Arvicola 



Asaphus 



231-43. 

 ■ 203, 



Ascaridoe 

 Ascaris 

 Ascidia 

 Ascidiacea 

 Asellus 



Asexual reproduction 

 Aspergillum 

 Aspredo 

 Astacus 



Asteracanthion . 

 Asterias 

 Asteroidea, 

 Astrsea 

 Astropecten 

 Astrophyton 

 Atax . 

 Ateles 

 Athecata 

 Atlanta 

 Atlantosaurus 

 Atlas vertebra 

 Atrial cavity 

 Atriopore of Amphioxus 

 Attidae 



Attus .... 

 Atypus 

 Auchenia . 



Auditory capsules of skull 

 ,, nerve . 



organs of Insects 



576 



589 

 296 



163 



163 



3S8, 363 



3S8, 363 



. 248 



Aulastoma 

 Aulosphsera 



49 

 313 

 414 

 250 

 203 

 209 

 203 



141, 143 

 . 207 

 . 209 



• 293 

 . 600 



• 473 

 315. 328 



■ 489 



• 550 

 357. 369 



• 36s 

 . 292 

 . 292 



292 

 578 

 372 

 381 

 263 

 189, 196 

 III 



PAGE 



Aurelia . . 126, 131, 143 



„ Life history of . . 134 



Auricles of Vertebrate heart 393 



Auricularia (of Holothuria) . 215 



Australian region . . 77 

 Aves, see Birds . . 7> 492 



Axial Skeleton, see Backbone 374 



Axis vertebra . . . 550 



Axolotl . . . 445, 466 



Aye-Aye . . 598 



Azygobranchs . . 328 



Babirusa .... 577 



Baboons .... 600 



Backbone . . . 374 



Bactrites .... 343 



Baculites .... 343 



Badger .... 592 



Balaena .... 587 



Baljenoidea. . . . 587 



Balgenoptera . . . 587 

 Balanoglossus — 



„ Description of . . 353 



,, General characters of 350 



,, Invertebrate ,, . 351 



„ Species of. . . 355 

 , , Vertebrate characters 

 of 



Balantidium 



Balanus 



Baleen 



Barbary ape. 



Barnacle 



Barramunda 



Basiliscus 



Batoidei 



Bats . 



Bdellostoma 



Beaver 



Bees . 



Beetles 



Belemnites 



Belinurus 



Belodon 



Beluga 



Beroe . 



Bile . 



Bilharzia 



Bimana 



Bipalium 



• 351 

 . 112 

 . 246 



• 585 

 . 601 



• 245 

 427 



. 478 



■ 427 



595-597 



• 405 



• 589 

 . 280 

 . 280 



343 



• 29s 



• 487 

 587 

 144 



16 



156 

 602 



151 



126. 



