INDEX 



Bold numbers refer to figures. 



Abdomen, 215-244 



Abducens nerve, 352, 353, 374 



Abomasum, 231 



Absorption, 234 



Acrania, 293 



Acromegaly, 335 



Adenoid, 226 



Adipose tissue, 106 



Adrenals, 327, 329 



Adrenin, 328 



Air bladder, 66, 246, 259, 260 



Alar plate, 385, 386 



Alimentary canal, 213, 218, 230, 343 



Allantois, 87, 235 



Amnion, ^;^, 87 



Amoeba, 338, 399, 406 



Amphibia(n), 16, 23, 29, 31, 32, 40, 45, 

 49, 53, 129, 131, 148, 153, 162, 

 167, 171, 172, 180, 184, 200, 217, 

 222, 225, 228, 236, 252, 258, 259, 

 270, 279, 297, 300, 329, 358, 359, 

 364, 367, 369, 375, 397, 398, 403. 

 40s, 417 



Amphioxus, 10, 11, 39-45, 48-54, 58-62, 

 170, 196, 231, 242, 251, 259, 265- 

 268, 278, 331, 343, 349, 350, 356, 

 366, 367, 376, 378, 391, 400, 404- 

 407 



Ampulla, 420 



Amylopsin, 242 



Anal glands, 126 



Anatomy, 85 



Ancestry of vertebrates, 427 



Animal kingdom, i, 2 



Animals, classification of, 22 



Angle, facial, 164 



Annelids(a), 22, 265, 291, 299, 347, 406 



Anthropoids, 21, 24, 94 



Antitragus, 419 



Anus, 234, 235 



Aortic arches, 275, 282, 283 

 Appendages, 203 



paired, 147, 177 



to skin, 116 

 Appendices epiploicae, 234 

 Appendicular muscles, 212 



skeleton, 146, 186, 187 

 Appendix, 234 

 Aqueous humor, 409 

 Arches, 167, 275 



branchial, 171 



glossopalatine, 225 



neural, 149 



visceral, 175, 177 

 Archinephros, 295 

 Arcurate arteries, 306 

 Arm muscles, 2 1 2 



upper, 186 

 Arteries, 262, 277, 285, 286, 288, 306, 412 

 Arthropod(a), 22, 145 

 Artiodactyla, 19, 23 

 Ascending colon, 2^5 

 Atlas, 150 

 Atrium, 283 

 Auditory centers of brain, 423 



nerve, 352, 355, 375 



organs, 415-425 

 Autonomic nervous system, 377 

 Aves, 18, 23 

 Axial skeleton, 146 



B 



Balanoglossus, 4-6 

 Basal plate, 385, 386 

 Bile, 239, 240 

 Bimana, 21, 24 



Birds, 18, 31, s,^, 42, 48, 49, 54, 78, 120, 

 129, 162, 167, 260, 261, 329, 402 

 eggs, 28 

 Bladder, 296, 297, 304, 307, 320 

 Blastocoele, 39, 42 



457 



