938 



INDEX 



Alimentary system of frog, 66i. 



of haddock, 622. 



-of Helix, 440. 



of Hirudo, 273. 



of Holothurian, 307, 308. 



-of Insects, 390. 



of Lizards, 698. 



of Myxine, 577. 



of Nematoda, 236, 238. 



of Nemerteans, 233. 



of Peripatus, 363. 



of Petromyzon, 582. 



of pigeon, 747. 



of rabbit, 800, 801. 



of Rotifera, 282. 



of scorpion, 414. 



of sea-urchin, 303. 



of Sepia, 461. 



of skate, 601. 



of spider, 419 



of starfish, 294. 



of Vertebrates, 553, 558. 



Alisphenoid canal, 848. 



All-or-none law of nerve action, 28. 



AUantois, 4, 44, 557, 683, 717, 767, 824, 

 825. 



Alligators, 716. 



AUoiocoela, 214. 



AUostoma, 214. 



Allotheria, 833. 



Alma, 264. 



Alouata, 885, 



Alpaca, 850. 



Alternation of generations, 65. 



— in Aurelia, 187. 



— in Ccelentera, 171. 



— in Distomum, 215, 220. 



— in Nematodes, 239. 



— in Spongilla, 160. 



— in Tunicates, 511 

 Altrices, 761. 

 Alytes, 677, 682. 

 Ambiens muscle, 737. 

 Amblypoda, 832, 860. 

 Amblyrhynchus, 702. 

 Amblystoma, 678, 678, 681. 

 Ambulacral areas, 301. 



— ossicles, 292. 



Aiuetabolic Insects, 384, 397, 406. 



Amia, 632, 640. 



Amino-acids, 33. 



Amitosis, 56. 



Amitotic division, 56. 



Ammoccetes, 584. 



Ammonites, 485, 487. 



Ammothea, 432. 



Amnion, 4, 683, 717, 767, 825. 



— and allantois, origin of, 718. 

 Amniota, 566, 683. 



— foetal membranes in, 684. 

 Amoeba, no. 



— functions of, 136. 



— life-history of, 112, 112. 



— physiology of, 22. 



— proteus. 111. 

 Amoeboid movement, 30, 136. 



Amorphina, 164. 

 Amphibia, 648. 



— classification of, 677. 



— Fishes compared with, 5, 650. 



— history of, 682. 



— life of, 680. 



— Mammals and, 682. 

 Amphiblastula, 162. 

 Amphiccelous vertebra, 591. 

 Amphidiscs, 160. 

 Amphilestes, 832. 

 Amphilina, 229. 

 Amphimixis, 60, 912. 



Amphioxus, 6, 45, 516, 516, 559. 565.- 573- 



— atrial chamber of, 519. 



— development of, 526. 



— embryos of, 522. 



— excretory organs of, 525. 



— larva of, 527. 



— nephridia of. 524. 



— pharyngeal region of, 518. 



— relations of, with Tunicata, 528. 

 Amphipod, an, 350. 

 Amphipoda, 551. 

 Amphiporus, 231, 235. 

 Amphiprion, 209. 

 Amphisbaenidae, 703. 

 Amphistylic, 655. 

 Amphitherium, 832. 

 Amphiuma, 677. 



Amphiura, 299. 



Ampullae of starfish, 295, 296. 



Ampullaria, 646. 



Anableps, " placenta " of, 719. 



Anabolism, 39, 63. 



Anaconda, 709. 



Anal cerci of cockroach, 374. 



Analogous organs, 43, 44. 



Anamnia, 683. 



Anapophyses, 788. 



Anaspide's, 350, 353. 



Ancestral inheritance, 90. 



Anchinia, 514. 



Anchitherium, 85 6. 



Anchylostomum, 242. 



Ancyius, 474. 



Anemonia, 205. 



Angiostomum, 240. 



Anguis, 541, 694, 701, 702. 



Angular bone, 619. 



Animal Kingdom— General survey of, i-i 9. 



Animalculists, 72. 



Animals and Plants contrasted, 22-26. 



Anisopleura 473. 



Annelids, 10, 244. 



— affinities of Balanoglossus with, 497- 



— development of, 262. 

 Annelids and Vertebrates, 531. 

 Anobium, 391. 

 Anodonta, 446, 451, 480. 

 Anolis, 702. 



Anomodontia, 682, 831. 

 Anopheles, 409. 

 Anoplodium, 214. 

 Ant-eaters, 843, 844. 

 lion. 390, 406. 



