INDEX 



629 



Astrogonium, 472 



Astroides, 404 



Astronyx, 501 



Astropecten, 455, 459, 407 ; fossil, 475 ; 

 A. irregularis, 4-08 ; movements, 46S ; 

 burrowing habits, 469 



Astropectinidae, 454, 458, 459, #)7, 470 



Astrophyton, 491, 501 



Astropyle, 81 



Astrorhiza, 59 



Astrorhizidaceae, 59 



Astrosckema, 501 ; vertebra, 481 



Astroschemidae, 501 



Astrosclera loilleyana, 194, 194 



Astroscleridae, 194 



Astylus, 287 



Atelecrinus, 588, 594 



Athoria (usually placed in a sub-family 

 Athoriinae of the Physonectidae, 307), 

 300 



Atolla, 322; A. bairdi, 322 ; A. gigantea, 

 322 ; A. valdiviae, 322 



Atollidae, 322 



Atoll, 390 f. 



Atorella, 314, 322 



Atrophy, of oral apparatus of Ciliata 

 during conjxigation, 151 



Attached, Foraminifera, 64 ; Flagellata, 

 112 f. ; Ciliata, 152; Suctoria, 160 f., 

 162 



Attachment, temporary, of Stentor, 155 ; 

 permanent, of Rhizocrinus, 591 ; of 

 Bathycrinus, 591 ; of young Penta- 

 crinidae, 592 ; of Thecoidea, 596 ; of 

 Cystoidea, 597 ; temporary, of larva of 

 sienna gibbosa, 610 ; of Brachiolaria 

 rva, 612 ; of larva of Antedon rosacea, 

 619 



Atdactinium, 79 ; A. actinastrum, 82 



Aulena, 220 



Aulocystis grayi, 208 



Avrelia, 310, 314, 324 ', A. aurita, 312 



.! ureliania lieterocera, 3S3 



Auricula, of Echinus esctdentus, 526 ; of 

 Cidaridae, 531 ; of Arbaciidae, 531 ; of 

 Ecli inarachnius parma, 546; represented 

 by radial pieces of calcareous ring of 

 Holothuroidea, 566 



Auricularia, 607 ; metamorphosis of, 614, 

 615 



Auronectidae, 301, 308 



Aurophore, 308 



Autodermin, 523 



Automatic processes, so-called, 12 



Autotrophic, 37 



Autozooids, 333 



Axial filament, 2 ; of Heliozoan pseudo- 

 podia, 49, 71, 72, 74; of ActjfOphrys 

 sol, 71 ; of Actinosphaerium eichornii, 

 72 ; of Radiolaria Acantharia, 80 



Axial sinus, of Asterias ruhcns, 448 ; of 

 Ophiothrix fragilis, 487 ; of Ed* inns 



esculentus, 517, 528; of Ethinocardium 



vnrdatum, 552 ; of Holothuroid larva, 

 564 ; of larva of Antedon rosacea, 583 ; 

 development of, in Asterina gibbosa, 609 



Axifera, 353 



Axinella, 216, 222, 225 ; A. erecta, 216 



Axinellidae, 217 



Axon, 444 



Axoniderma, 216 



Axopora, 262 



Azoosporeae, 89 



Babesia (=Pirqpla8ma), 120 



Bacteria, food of Myxomycetes, 92 f. ; nutri- 

 tion of, 36 



Bactronella, 193 



Baker, H., on organisms of putrefaction, 

 43 ; on Protozoa, 45 ; on NoctUuca, 

 134 f. 



Balanoglossus, larva and affinities of, 616 



Balantidium, 137 ; habitat of, 152 



Balbiani, on Protozoa, 45 ; on regeneration, 

 35 n. ; on " Pebrine " (Nosema bombyds), 

 107 



Barbados, Miocene deposit of Radiolaria, 87 



Barotaxy, 20 



Barrier reef, 390 f. 



Bary, A. de, on methods of culture of lower 

 organisms, 44 ; on nature of Myxomy- 

 cetes, 91 



Basal granules, of cilia, etc., 138 n., 141 

 see also Blepharoplast 



Basal plates, of Antedon rosacea, 584 ; of 

 Crinoidea, 588 ; of Hyocrinus, 588, 590 ; 

 of A telecrinus, 588, 594 ; of Rhizo- 

 crinidae, 588, 590 ; of Thaumatocrinus, 

 588, 594 ; of Pentacrinidae, 591 ; of 

 Holopus, 592 ; of Cystoidea, 598 ; of 

 Blastoidea, 599 



Bastian, H. Charlton, on spontaneous 

 generation, 44 n. 



Bateson, 174 



Bath sponge, 221 



Bather, on Sympterura, 502 ; on classifica- 

 tion of Crinoidea, 589 ; on phylogeny of 

 Echinodermata, 622 



Bathyactis, 404 



Bathyanthus, 4H 



Bathycrinus, 589, 591 



Bathypathes, 408 



Bebryce, 356 



Bell, F. J., 406 n. ; on classification of 

 Ophiuroidea, 494 : of Endocyclica, 533 ; 

 on relationships of Holothuroidea. 480 

 n., 622 



Bell-animalcules, 155 f. ; feeding of, 145 

 see also Carchesiutn, Epistylis, Peri- 

 trichaceae, YorticcU". Zoothamnivrm 



Beloidea, 77 



Beneden, E. van, on Sporozoa, 94 ; on 

 pelagic Anthozoa, 411 



Bernard, F., 241 n. 



