MOLLUSCA. ZOOPHYTES. 
VOL. XII. 
Abyle, xii. 492 
Acaleph®, the, 437. 481 
hydrostatic®, 489 
simplices, 482. 561 
Acaleph®, supplement on the, 561 
umbrella of the, 562 
Acamarchis, 503 
Acanthocephala, ( Rud .) 469 
Acarda, ( Brug .) 92 
Acasta Montagui, 137 
Acast®, the {Leach), 137 
Acephala, the, 5. 89. 369. 413 
nuda, 125 
salivary apparatus of, 197 
Acetabulum, {Lam.) 507 
Achatina, {Lam.) 32 
Acmea, {Hartm.) 62 
Acrostoma, {Le Sauvage) 479 
Act®on, {Montf.) 63 
Actinia, {L.) 494 
effbeta, 495 
equina, 495 
plumosa, 495 
proper, 495 
senilis, 495 
Actini®, the, 572 
food of the, 574 
Actinocamax, of Miller, 15 
Actinocrinites, the 444 
Adeona, ( Lamour .) 513 
grisea, 513 
iEquorea, 482 
Agaricina, 512 
Agastraria, of Blainville, 594 
Agathistega, 17 
Aggregata, 128 
Aglaophenia, {Lamour) 502 
Akera, {Muller) 45 
Akera, proper, xii. 47 
Alcinoe, {Rang.) 487 
vermiculata, 488 
Alcyonium, {Linn.) 516 
asbestinum, 530 
digitatum, 516 
epipetrum, 515 
exos., 516 
mamillosum, 496 
Alecto of Leach, 443 
Amatia, {Lamour) 502 
Ambulacraria, 541 
Ammonie, {Montf.) 13 
Ammonites, {Brug.) 15 
{Lam.) 15 
Amorpha of Blainville, 594 
Amphiroe, {Lamour.) 505 
Amphistoma {Rud.) 471 
Ampulla carinata, 61 
Ampullaria, {Lam.) 61 
Ampullin®, {Blainv.) 62 
Anadiomene, {Lamour.) 506 
flabellata, 506 
Anambulacraria, the, 541 
Ananchites, {Lam.) the, 449 
Anatifa, the, 426 
{Brug.) 135 
Anatif®, locomotion of the, 188 
Anatina, {Lam.) 119 
Anchasella, {Cuv.) 466 
Ancillaria, {Lam.) 74 
cinnamomea, 75 
Anguinaria, {Lam.) 501 
Animal-plants, 436. 523 
Animalia radiata, 435 
Animals, apathetic, 153 
intelligent, 153 
sensible, 153 
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