INDEX 



Names of genera and species are printed in italics; names of higher ranks, 

 such as families, orders etc., in capitals and small capitals; all other terms 

 and proper names in roman type. Numbers refer to pages. 



Abducens nerve, 179 

 Abomasum, 98 

 Absorption, 115 



carbohydrate, 117 



fat, 118 



gastric, 115 



large intestine, 119 



protein, 115 



small intestine, 115 



ACANTHOCEPHALA, 409 



Acanthometra, 375, 376 

 Accommodation, 196 

 Acetabulum, 67, 69 

 Achorutes, 428 

 Achroodextrin, 111 

 Acicula, 417 

 Acipenser, 448 



ACNIDOSPORIDIA, 380 



Acoela, 400 



Acquired characters, 265, 266 



Acromegaly, 206 



Acromium, 67 



Actinopoda, 375 



Actinospherium, 375, 376 



Adaptation, 324-358 



Adductor brevis muscle, 81 



Adductor longus muscle, 80 



Adductor magnus muscle, 80 



Adhesive cells, 398 



Adrenal gland, 39, 147, 213, 214 



Adrenalin, 213 



Adrenotropic hormone, 208 



Afterbirth, 163 



Agamic reproduction, 154 



Agglutination, 300 



Agkistrodon, 338, 452 

 Albumin, 109 



Alcohol, effect on germ cells, 267 

 Alimentary canal, 85 



Euplanaria, 86 



frog, 32, 95, 100, 102 



grasshopper, 87 



human, 96, 99 



Hydra, 86, 392 



vertebrate, 88 

 Alimentation, 85-119 

 Allelomorph, 270 

 Alligator, 451 

 Alopex, 334 

 Alveolar cells, 103 

 Amaroudum, 442 

 Ambystoma, 450 



locomotion of, 70 



coloration of, 333 

 Ambystoma maculatum, 450 

 Ambystoma microstomum, 70 

 Ambystoma opacum, 450 

 Ameiurus, 449 

 Amia, 449 

 Amictic female, 410 

 Amino acid, 114 

 Amitosis, 224, 225 

 Ammophila, 356 

 Amoeba, 370-376 

 Amoebida, 370 

 Amphibia, 449 

 Amphigony, 154 

 Amphineura, 433 

 Amphioxus, 443 

 Amplexus, 154, 161 

 Ampulla, 200, 436 

 Amylase, 33, 107 



477 



