INDEX 



789 



Blue coral, 193 



Bodotria, 553 



Body-cavity See Coelome 

 Body-wall, of Sea-anemone, 185 : 

 Hormiphora, 212 : Liver-fluke, 237 : 

 Platyhelminthes, 257 : Nemertinea, 

 285 : Ascaris. 293 : Nematoda, 299 : 

 Chsetognatha, 310 : Brachionus 

 ruhens, 318 : Bugula, 336 : Ecto- 

 procta, 344 : Magellania, 355 : As- 

 terias, 373 : Sea-cucumber, 394 : 

 Nereis, 433 : Earthworm, 445 : 

 Chsetopoda, 463 : Sipunculus, 485 : 

 Sipunculoidea, 488 : Hirudo, 496 : 

 Apus, 519 : Astacus, 533 : Crustacea, 

 578 : Peripatus, 592 : Myriapoda, 

 600 : Insecta, 621 



Bojanus, organ of, 672 



Bolina hydatina, 223 



Bone, 27, 28*, 29 



Bone -corpuscles, 28* 



Bonellia, 479, 481, 482, 483 



Book-gills, 653 



Book-lungs, 642, 652 



Book-scorpions, 646 



Bopyrini, 572 



Bopyrus, 554 



Botany, 1* 



Bot-fly, 620, 636 



Bothridia, 255* 



Bothriocephalus, 255, 275, 281 



Bothriocephalus latus, 281 



Botryoidal tissue, of Leech, 497 



Bougainvillea, 144, 152 



Brachial disc, of Discomedusse, 182 . 



Brachial ossicles, 398 



Brachiolaria, 402, 423 



Brachionidce, 323* 



Brachionus, 317, 318, 319, 320, 321, 

 322, 323 



BRACHIONUS RUBENS : External char- 

 acters, 317, 318: Body-wall, 318: 

 Digestive organs, 319 : Body -cavity, 



320 : Excretory system, 320 : Ner- 

 vous system and sense organs, 320 : 

 Reproduction and development, 320, 



321 : Systematic position, 323 

 Brachiopoda, 332, 353* : Example, 



353 : Distinctive characters and 

 classification, 359 : Systematic posi- 

 tion of example, 359 : General or- 

 tanisation, 360 : Shell, 360, 361 : 

 picules, 361 : Peduncle, 361 : Lo- 

 phophore, 361 : Muscular system, 

 362 : Enteric canal, 362 : Heart, 

 362 : Nephridia, 362 : Nervous sys- 

 tem, 362 : Gonads, 362 : Develop- 

 ment, 362, 363, 364, 365 : Distri- 

 bution, 364 



Brachyura, 555*, 575, 576, 577, 586 



Bract, 160, 162*, 518 



Brain, 38* 



Branch f.llion, 504, 506, 510 



Branchiae, 36* : of Asterias, 369 : Sea- 

 urchin, 388: Polychfeta, 461, -462 : 

 Oligochaeta, 462 : Branchellion, 50/TT 

 Astacus, 537 : Crustacea, 578 : Aiio- 

 donta, 668, 669, 670, 671 : Pele- 

 cypoda, 686 : Triton, 706 : Gastro- 

 poda, 723 



Branchial formula, of Astacus, &c., 538 



BranchioDoda, 549*, 555, 556, 557, 578, 

 579, 581, 582, 587, 660 



Branchipus, 549, 557 



Branchiura, 551*, 559, 562, 563 



Brine-shrimp, 557 



Brisingidce, 410 



Brood-cavity, 103 



Brood-pouch, 363, 519 



Brown body, 339 



Brown tubes, 489* 



Buccal cavity, 33 



Buccal tentacles, 413 



Buccinum undatum, 702 



Budding, 41* Sea Asexual reproduc- 

 tion : in Turbellaria, 251 



Buff on, 5 



Bugs, 619, 625, 636 



Bugula, 340 



BUGULA AVICULARIA, 334, 335 : Body- 

 wall, 336 : Coelome, 336 : ^Aiimen- 

 tary canal, 336 : Nervous system, 

 336 : Excretory organs, 336 : Re- 

 productive organs, 336, 337 : De- 

 velopment, 337, 338, 339 : Sys- 

 tematic position, 341 



Bugula plumosa, 338 



Bulinus, 241 



Bursa copulatrix, 265, 266, 267, 268, 631 



Busycon, 730 



BUTHUS, 638 : External features, 638, 

 639, 640 : Digestive system, 640, 

 641 : Circulatory organs, 641, 642 : 

 Organs of respiration, 642 : Nervous 

 system, 641, 642, 643 : Organs of 

 special sense, 643 : Reproductive 

 organs, 643 : Development, 643, 644 



Butterflies, 514, 602, 620 



Byssus, 677, 684, 685 : provisional, 

 675, 685 



Byssus-gland, 677, 685 



G 



.'ADDIS-FLIES, 618 



Cake-urchins, 403*, 408, 413, 414 

 Calcarea, 113*, 121, 122, 123, 125 

 Calcareous spicules, of Sponges, 108, 



109, 120, 122, 123 

 Calciferous glands, 447 

 Callianira, 215, 216, 219 

 Callitiara, 150 

 Galocalanus, 560 

 Calotte, 227*, 338 

 Calymma, of Radiolaria, 62 



