692 



INDEX 



Alpine, 33 



Alternation of generations, 35 



Alveolar ducts, 338, 339 



glands, 140, 230, 232, 303 

 limbus, 232 

 sacs, 338, 339 



Alveolus, 193, 197 



Amber eye, 178 



Ambystoma tigrinum, 51, 154 



Ameloblast, ig6 



Amia, 617 



Amino-acid, 326 



Amiurus, 579 



Ammocoetes, 23, 646, 647, 651 



Ammonites, 14 



Amnion(ic), 25, 31, 52-56, 113, 114, 115, 

 119 



Amniota(es), 31, 86, 87, 89, 95, 96, loi 



Amoeba, 3, 4, 467 



Amphibia(n), 2, 25, 25, 31, 34, 36, 39, 40, 

 45, 49, SO, 51, SS, 56, 57, 60, 

 62, 66, 69, 70, 74, 75, 75, 76, 

 86, 87, 88, loi, 186, 246, 411 



Amphicoelous (biconcave), vertebrae, 204 



Amphioxus, 18, 20, 21, 22, 31, 59, 60, 

 61, 62, 63, 64, 66, 69, 70, 71, 

 74. 75, 76, 81, 81, 83, 84, 84, 

 85, 86, 87, 88, 333, 351, 410, 

 661, 663, 664 



Amphitherium, 188 



Ampullae of ductus deferens, 428 

 of ear, 596, 600, 603, 604 

 of Lorenzini, 598 



Amygdaloid nucleus, 504 



Amylopsin, 326 



Anal canal, 318 

 muscle, 8 

 opening, 8, 10, 88 



Anamnia, 31, 95, 96, loi 



Anastomosis, 382 



Anatomy, vii, 35, 126 

 comparative, vii, viii 



Ancestor, i, 3, 5, 9, 20, 25 



Ancestral tree, 7, 628 



Ancestry, xiv, 9 



of vertebrates, 628-666 



Anconeus m., 281 



Angioblast, 366, 367 



Anguillidae, 48 



Anguis fragilis, 592 



Angular(e), 221, 222, 231 



Animal, ix, i, 4, 30 



evolution, 13 



hemisphere, 63, 70 



kingdom, 1,2, 3, 5 



pole, 41, 60, 61, 62, 66 

 Anisotropic, 144 

 Ankle, 252 

 Ankylose, 257 

 Anlage(n), 236, 325 



Annelid ancestr>' of vertebrate theorj', 

 350, 607, 628, 630-634 

 objections to, 634 

 Annelida(s), 2, 4, 8, 10, 11, 12, 14, 15, 



30, 409, 628, 629, 630, 634 

 Ansulate commissure, 511 

 Anteater, 28 

 Anterior cavity, 263, 265, 266, 616, 640 



crescent, 76 



somite, 267, 651 

 Anthropoid(s)(ea), 29, 30, ^2, 33 

 Antibodies, 348 

 Antihelix, 599, 606 

 Antithrombin, 348 

 Antitoxins, 348 

 Antitragus, 599, 606 

 Antler, 171 

 Antrum, 227, 228 



of Highmore, 232 

 Anura, 25, 45, 50, 56, 331 

 Anus, 4, 6, 7, 8, 9, II, 12, 20, 21, 30, 65, 82, 

 84, 88, 90, 91, 300, 301, 315, 318 

 Aorta, 352, 374, 390 



abdominal, 392 



development of, 373, 374 



dorsal, 10, 26, 330, 351, 352, 353, 

 354, 356, 376, 377, 390 



thoracic, 392 



ventral, 352, 376 

 Aortic arch(es), 26, 31, 350, 351, 352, 360, 

 374. 376, 377, 390, 625 

 development of, 375 

 evolution of, 359 

 Ape, 29, 30, 38 

 Apex, apices, 303 

 Apical spot, 590, 592 

 Appendage(s), 14, 30 



integumentary, 169 

 Appendices epiploicae, 315 

 Appendicular muscles, 288 



skeleton, 236-258 

 development of, 253 

 in man, 247 



