INDEX 



537 



Asteroids, as hosts, 341 



Asterope, 315 



Astropecten, as host, 297, 309 



Atokous phase, 277 n. 



Atractonema, 131, 150, 152, 153 



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



Oligochaeta, 361, 378 

 Atrochus, 201, 213, 214, 221 

 Auditory organs, of Turbellaria, 26 ; of 



Hoplonemertea, 106, 110 ; of Neniatoda, 



128 ; of Polychaeta, 273 

 A idartomum, 393, 399, 403 

 Auricles, of Rotifers, 205 

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



brood-sac, 275, 276 ; repi'oduction, 278, 



279 ; sexual dimorphism, 281 ; A. 



ebiensis, eggs, 276 

 Automolos, British species, 50 

 Avenella, 533 



Avicularian zooeciuni, 482, 524 

 Avicularium, 466, 467, 468, 482 f., 482, 



516, 517, 522 f., 524 ; adventitious, 



482 ; vicarious, 482 ; vibraculoid, 484, 



485 ; structure, 4!S3 ; movements, 485 ; 



function, 486 

 A.rine, 56, 73 

 Axiothea, 33. \ 333 



BAELY, on human parasites, 139 



Baird, on Oligochaeta, 382 



Bait, Polychaeta as, 297 



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

 496 n. 



Balanoglossus, affinities of Nemertinea 

 with, 120 



Balatra, 204, 212, SS& 227 



Balfour, on Trochosphere, 229 



Barentsia, 488 n. 



Barrois, on Polyzoa, 509 



Basement-membrane, of Leptoplana, 11, 

 12 ; of Nemertines, 102, 103, 110 f. 



Bathymetrical distribution, of Polvchaeta, 

 300 



Bdellodrilus, 376 



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

 222, 227 



Bdellouridae, 32, 42 



Beania, 518, 525 



Beddard, on Tetrastemma aquarium dul- 

 cium, 118 ; on Oligochaeta, 347 t ; on 

 Leeches, 392 f. 



Bed well, on Rotifers, 198 



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

 todes, 162 ; on Phoronis, 450 



Benham, on a fresh- water Tetrastemiua, 

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

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

 on Oligochaeta, 357, 373, 382 ; on 

 PJwronis, 452 f. 



Benhamia, 383 f. 



Bicellaria, 481, 518, 526, 527 



Bilfinger, on Rotifers, 212 



Bilharzia, 4, ;,/; B. CIXUMO, 70 ; /;. hmema 

 tobia, 63, 68 f., 69 



Bimastos, 380 



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 ; Qontou of, 173 ; 

 Acanthocephala of, 184, 185 



Bisexual, Turbellaria, 44 ; Trematodes, 

 70 f. 



Bladder, of Rotifers, 214 



Bladder-worms, 5, 79 L,__89. . 



Blanchard, on Cestoda, 91 ; on Hirudinea, 

 392 f., 405, 408 



Blastomei'es, of egg of Diatomtm, 65 



Blood, of Nemertinea, 108; of Polygorduu, 

 244 ; of Chaetopoda, 252 ; of Chlor- 

 haemidae, 252, 334 ; of Magdoma, 

 252, 325 ; of Sabelliformia, 252, 

 337 



Blood-corpuscles, in Chaetopoda, 252 



Body-cavity (including Coelom), of Nenia- 

 toda, 130 ; of (Jordius, 166 ; of Acan- 

 thocephala, 175, 178 ; of Chaetognatha, 

 187 ; of Archiannelids, 243, 244 ; of 

 Polychaeta, 249 ; of Myzostoma, 343 ; 

 of Oligochaeta, 355 ; of Leeches, 397 ; 

 of Gephyrea, 416 : of Pkorottis, 454, 

 462 ; of Polyzoa, 468, 488, 495 



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

 Nematodes, 125 ; of Gordiidae, 165 ; of 

 Acanthocephala, 175 ; of Chaetognatha, 

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

 of Oligochaeta, 349 ; of Gephyrea, 414, 

 436 ; of Phoronis, 454 ; of Polvzoa, 

 470, 495, 500 



Bohadsch, on Gephyrea, 411 



Bohemilla, 377 ; chaeta, 350 



Bonelleiu, 435, 292 



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

 435 ; male, 438 ; development, 439 ; 

 habits of, 442 ; as host, 297 



Bonnet, on Oligochaeta, 348, 379 



Boring Worms, 286, 287 



Borlase, on Lineu.s marimu, 99 



Borlasia elizabethae., Ill, 114 



Bothriocephalidae, 91 



Bothriocephalinae, 91 



Bothriocephalic, 91 ; B. cordatus, 81, 91 ; 

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

 81, 91 ; life-history, 84 ; reproductive 

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

 l=B. liguloides), 81, 91 



Bothriocerca, 226 



Bothrioneuron, 379 



Bothrioplana, 46, 50 



Bothrioplanidae, 42, 46, 50 



Bothromesostoma p0rsonatum, ft 



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

 380 ; on Leeches, 400 



Bouvier, on commensal Gephyrea, 429 



