INDEX 



abalone. See Haliotis 



Abraliopsis, 550, 575 



A. morisii, 551, 553 



absorption, 275 



Abudefduf saxatilus, 162 



abyssal plain, 7 



abyssal region, 2 



Acantharia, skeleton, 630 



Acanthodoris, 235, 275, 649 



Acanthometra, 611, 630 



A. pellucida, 612 



Acartia, 599, 600 



accommodation, eye, 312, 313 



Acerina, 344 



acetylcholine, 109, 381, 393, 440, 526 



acetylcholinesterase, 441 



Acholoe, 549 



A. astericola, 549, 568, 570, 573, 588 



Acipenser. See sturgeon 



Acmaea, 149 



A. lima tula, 101, 107 



acorn barnacles. See Cirripedes 



Acropoma japonicum, 559 



Actinia, 486, 587 



A. equina, 162, 472, 485, 487, 488 



actinians — 



excretion, 288 



feeding, 237 



See also sea anemones 

 Actinoloba reticulata, 585 

 Actinomma, 630 

 Actinophrys sol, 40 

 Actinopyga, 664 

 action potential — 



muscle, 380 



nerve, 417 

 action spectra, 327, 328 

 actomyosin, 393 

 Adamsia palliata, 586, 587 

 adaptive coloration, 494 

 adductor muscle, 390 

 Adelie penguin, 170 

 adenase, 294 

 adenine, 282, 294 

 adenosine triphosphate, ATP, 394 

 adrenaline, 92, 109, 381, 441, 526 

 adrenergic systems, 441 

 adventitious shelters, 663 

 Aeolidiella, 664 

 A. glauca, 376 

 Aeolis, 375 



Aequorea, 448, 560, 563 

 A. aequorea, 30 

 A. forskalea, 421, 536, 568 

 aerial gills, 148 

 aerial respiration, 149 



M.A.— 22** 



Agaltna, 401 



agar, 268 



Aiptasia, 618 



air-bladder. See swim-bladder 



Akera, 478, 479 



albatrosses, feeding, 245, 246 



albedo, 488, 514 



Alca torda, 170, 245 



Alcyonidium, 615 



Alcyonium, 636 



A. carneum, 632 



A. digitatutn, 498 



algae, 583, 615 



algal symbionts, 610 



alkali reserve — 



blood, 190 



sea water, 13 

 allantoic acid, 282, 295 

 allantoicase, 295 

 allantoin, 282, 295 

 allantoinase, 295 

 A lie alle, 170,245 

 Allogromia, 636 

 allophores, 505 

 Alloteuthis, 264 

 Alopias, 242 

 Alpheus, 603 

 Ameiurus, 336, 344 

 A. nebulosus, 343 

 amine oxidase, 1 13 

 amino acids, 282, 288 

 Ammodytes, 494 

 ammonia, 282 

 ammonotelism, 282, 288 

 Amoeba — 



effect of pressure, 24 



feeding, 204, 236 

 A. lacerta, 41 

 A. mira, 41 



amoebocytes, 122, 261 

 Ampelisca, 226 

 ampharetids, feeding, 207 

 Amphioxus, 100, 101, 106, 219, 265, 306, 



394 

 A. lanceolatus 153 

 Amphipnous, 150 

 amphipods — 



excretion. 292 



feeding, 226, 233 

 Amphiporus, 238 

 A . pulcher, 470 

 Amphiprion, 587 

 Amphithoe rubricata, 656 

 A . johnstoni, 469 

 A. ornata, 124, 284 

 Amphiura, 233, 552 



683 



