INDEX 613 



Bilateral symmetry {cont.) 



derm larvae, 547, 551, 557; of 

 Echinoidea, 548, 570; of Holothu- 

 roidea, 548, 572; of Metazoa, 



.123 , 

 Bilharzia, see Schistosoma 

 Binary fission of Protozoa*, 24; 32, 



40,48, 64, 67,68, 69, 75, 78, 81, 107 

 Bipalium kewense, 189-90 

 Bipinnaria, 556; 556, 562 

 Biramous limb, see Stenopodium 

 Birgus, 373 ; 372 

 Bladder worm, see Cysticercus 

 Blastocoele, 120; i, 121, 122, 209 

 Blastoidea, 582 

 Blastopore, 120 

 Blastostyles, 133 

 Blastozoite, see Blastozooid 

 Blastozooid, 600; 603, 604 

 Blastula, 120; of Coelenterata, 131; 



of Echinodermata, 555 ; of Obelia, 



135 

 Blatta, 389, 404 

 B. orientalisy 409 

 Blepharoplast, 11 n. 

 Blood, 122; of Arenicola, 240; of 



Chaetopoda, 230; of Ciona, 596; 



of Crustacea, 314; of Insecta, 391 ; 



of Scorpion, 450 

 Blood vessels, see Arterial system, 



Artery, Vascular system 

 "Blood vessels" of Echinodermata, 



see Lacunar system 

 Bodo, 56; 58 

 B. saltans, 57 

 B. sulcatus, Chemophobotaxis of, 34, 



35 



Body, of Amphipoda, 358; of Areni- 

 cola, 238; of Balanoglossus, 585; 

 of Cephalodiscus and Rhahdopleura, 

 590 ; of Crustacea, 295 ; of Cteno- 

 phora, 171 ; of Echinodermata*, 

 547, 564, 572; of Isopoda, 355 ; of 

 Medusa, 129; of Metazoa, 120; of 

 polyp, 129; of Porifera, no, in; 

 of Protozoa, 4; of Tubicolous 

 Polychaeta, 237. See also Sym- 

 metry 



Body cavity, of Nematoda, 215; 

 Primary, see Haemocoele ; Second- 

 ary, see Coelom. See also Perivis- 

 ceral cavity 



Body wall, of Hirudinea, 265; of 

 Holothuroidea, 573 ; of Metazoa, 



120; of polyps, 129; of Rotifera, 

 209 



Bonelliay 268 



B. viridis, 269 



Boophilus anmdatus, 465 



B. hovis, 465 



Bopynis, 357 



B.fougerouxi, 358 



Bothriocephalus, 201, 202, 204 



B. latus, 201, 202 



Botryllus, 603 ; 599 



B. violaceus, 602 



Botryoidal tissue, 265 



Bougainvillea, 136; 138, 143 



B.fructiiosa, 136 



Brachial ossicles, 580 



Brachial skeleton, 540 



Brachials, 580 



Brachiolaria, 557 



Brachioles, 582 



Brachiopoda, 537; 2; Development 

 of, 541 



Brachyura, 362 



Brachyurous types, 362 



Brain, 122; 124; of Arthropoda, 274; 

 of Branchiopoda, 303, 305; ot 

 Ciona, 596 ; of Crustacea, 303 ; of 

 Insecta, 397, 398; of Polychaeta, 

 230; of Sepia, 520, 520. See also 

 Ganglion, Cerebral (Supraoeso- 

 phageal) 



Branchia, of Phyllopodium, 300, 

 317; of Salpa, see " Gill " 



Branchiae, see Gills 



Branchial chamber, 592 



Branchial hearts, 519 



Branchial opening, 592 



Branchial veins, 519 



Branchiobdellidae, 252, 267 



Branchiogenital region, 586 



Branchiopoda, 317; 290, 291, 295, 

 298, 303 



Branchiura, 337 



Breathing, see Respiratory movements 



Brisinga, 562 



Brown body, 531 



Bryograptus, 148; 150 



B. callavei, 150 



B. retroflexus, 150 



Buccal capsule, 221 



Buccal cavity, of Enteropneusta, 587 ; 

 of Helix, 585 ; of Insecta, 387 ; of 

 Tunicata, 592. See also Alimen- 

 tary canal 



