INDEX 



537 



Aster ope, 315 



Astropecten, as host, 297, 309 



Atokous phase, 277 n. 



Atmctonema, 131, 150, 162, 153 



Atrium (genital), iu Planaria, 38, 39 ; in 



Oligochaeta, 361, 378 

 Atrochus, 213, 214, 221 

 Auditory organs, of Turbellaria, 26 ; of 



Hoplonemertea, 106, 110 ; of Nematoda, 



128 ; of Polychaeta, 273 

 Ankistomum, 393, 399, 403 

 Auricles, of Rotifers, 205 

 Autolytus, 308 ; eye, 255 ; denticles, 270 ; 



brood-sac, 275, 276 ; reproduction, 278, 



279 ; sexual dimorphism, 281 ; A. 



ebiensis, eggs, 276 

 Autmnolos, British species, 50 

 Avenella, 533 



Avicularian zooecium, 482, 524 

 Aviculariuin, 466, 467, 468, 482 f., 482, 



516, 617, 622 f., 524 ; adventitious, 



482 ; vicarious, 482 ; vibraculoid, 484, 



485 ; structure, 483 ; movements, 485 ; 



function, 486 

 Axim, 56, 73 

 Axiotlmt, 333, 333 



BAELY, on human parasites, 139 



Baird, on Oligochaetu, 382 



Bait, Polychaeta as, 297 



Baker, on Rotifers, 197, 207 ; on Polyzoa, 



496 n. 

 Didanofjhisms, affinities of Nemertmea 



with, 120 



Balatro, 204, 212, 224, 227 

 Balfour, on Trochosphere, 229 

 Barentsia, 488 n. 

 Barrois, on Polyzoa. 509 

 Basement - membrane, of Leptoplmia, 



11, 12 ; of Nemertines, 102, 103, 



110 f. 

 Bathy metrical distribution, of Polychaeta, 



300 



Bdellodrilus, 376 

 Bdelloida, 201, 203 f., 211, 213, 215, 216, 



222, 227 



Bdellouridae, 32, 42 

 Jieania, 518, 525 

 Beddard, on Tetrasteinma aquarium did- 



cium, 118 ; on Oligochaeta, 347 f. ; on 



Leeches, 392 f. 

 Bedwell, on Rotifers, 198 

 Beneden, van, on Cestodes, 76 ; on Nema- 



todes, 162 ; on Phwuuis, 450 

 Jienham, on a fresh-water Tetrastemma, 



118 ; on Archiannelida, 241 f. ; on Poly- 

 chaeta, 245 f. ; on Myzostomaria, 341 f. ; 



on Oligochaeta, 357, 373, 382; on 



Pho-ronis, 452 f. 

 Benhamia, 3S3 f. 

 Bicellaria, 481, 518, 526, 527 

 Biltinger, on Rotifers, 212 



Bilharzia, 4, 73; B. crassa, 70 ; B. Jutema- 

 tobiu, 63, 68 f., 69 



Bimastos, 389 



Bipaliidae, 35, 42 



BipaliuM, 33, 34, 42, 408 



Birds, Trematodes of, 62, 63, 64, 72 ; 

 Cestodes of, 77 f., 84, 85 ; Nematodes 

 of, 144, 149, 163 ; Uwdius of, 173 ; 

 Acanthocephala of. 184, 185 



Bisexual, Turbellaria, 44 ; Trematodes, 

 70 f. 



Bladder, of Rotifers, 214 



Bladder- worms, 5, 79 f., 89 



Blanchard, on Cestoda, 91 ; on Hirudiuea, 

 392 f., 405, 408 



Blastomeres, of egg of Distmnum, 65 



Blood, ofNemertinea, 108; of Polygordi us, 

 244 ; of Chaetopoda, 252 ; of Chlor- 

 haemidae, 252, 334 ; of Mngdona, 

 252, 325 ; of Sabelliformia, 252, 

 337 



Blood-corpuscles, in Chaetopoda, 252 



Body-cavity (including Coelom), of Nema- 

 toda, 130 ; of Gtontttw, 166 ; of Acan- 

 thocephala, 175, 178 ; of Chaetoguatha, 

 187 ; of Archianuelids, 243, 244 ; of 

 Polychaeta, 249 ; of Myzostoma, 343 ; 

 of Oligochaeta, 355 ; of Leeches, 397 ; 

 of Gephyrea, 416 ; of Phunmis, 454, 

 462 ; of Polyzoa, 468, 488, 495 



Body- wall, of Nemertinea, 102, 103; of 

 Nematodes, 125 ; of Gordiidae, 165 ; of 

 Acauthocephala, 175 ; of Chaetognatha, 

 187 ; of Rotifers, 205 ; of Nereis, 249 ; 

 of Oligochaeta, 349 ; of Gephyrea, 414, 

 436 ; of Phoronis, 454 ; of Polyzoa, 

 470, 495, 500 



Bohadsch, on Gephyrea, 411 



Botiemilla, 377 ; chaeta, 360 



Bouellein, 435, 292 



Bonellia, 411, 434, 442 ; anatomy, 434 f., 

 436 ; male, 438 ; development, 439 ; 

 habits of, 442 ; as host, 297 



Bonnet, on Oligochaeta, 348, 379 



Boring Worms, 286, 287 



Borlase, on Linens marinus, 99 



Barlasia tlisabetkae, 111, 114 



Bothriocephalidae, 91 



Bothriocephalinae, 91 



Bothriiwephaliis, 91 ; B. cordatus, 81, 91 ; 

 B. cristntiis, 81, 91 ; B. latus, in man, 

 81, 91 ; life-history, 84 ; reproductive 

 organs, 87 f. ; larva, 87 ; B. mansoni 

 ( = B. liyuloides), 81, 91 



Bothriocerca, 226 



Bothrioneiiron, 379 



BMrioptann, 46, 50 



Bothrioplanidae, 42, 46, 50 



lliithromesostoma jtermmatinn, 4$ 



Bourne, on Oligochaeta, 352, 373, 377 11., 

 380 ; on Leeches, 400 



Bouvier, on commensal Gepliyrea, 429 



