INDEX 



833 



Crustacea, 604 : Arthropoda, 678 : 

 Pelecypoda, 712 : Gastropoda, 756 : 

 Cephalopoda, 804 



Renal organs See Excretory system 



Reproduction. Reproductive System, 14, 

 30, 39 : AriKrba, 14, 46: Foraminifera, 

 56 : Heliozoa, 59 : Radiolaria, 63 : 

 Mycetozoa, 67 : Euglena, 69 : Flagel- 

 lata, 74 : Choanoflagellata, 78 : Dino- 

 flagellata, 79: Cystoflagellata, 79: 

 Monocyxti*, 80 : Gregarinida, 83 : 

 Coccidiidea, 84 : Ha?mosporidea, 86 : 

 Paramrecium, 90: Ciliata, 97: Ten- 

 taculifera, 101 : Porifera, 120 : Obelia, 

 139 : Leptolins?, 149 : Trachylina;, 155 : 

 Hydrocorallina, 158 : Siphonophora, 

 162, 164, 166: Aurelia, 171: Tealia, 

 192 : Actinozoa, 197 : Hormiphora, 

 216 : Mesozoa, 231, 234 : Planaria, 

 J.'X 239: Fasciola, 242, 243: 7V,/;</. 

 248. 249, 250: Platyhelminthes, 270^ 

 Xemertinea, 295 : Ascaris, 302, 303 : 

 Xematoda, 307 : Acanthocephala, 314, 

 315 : Chsetognatha, 318 : Brachionu*, 

 326 : Rotifera, 334 : Dinophilea, 337 : 

 Bugula, 344 : Ectoprocta, 352 : Endo- 

 procta, 355 : Phoronis, 357 : Magel- 

 lan ia, 366: Brachiopodai369 : Star- 

 fish, 386: Sea-urchin, 400: Hofothuri'in, 

 404: Antedon, 409: Echinodermata, 

 429 : Xerei*. 449 : Lumbricu*, 461, 

 462, 481 : Chsetopoda, 481 : Myzosto- 

 mida, 490, 495 : Sipunculiis, 495 : 

 Gephyrea, 499 : Archi-anuelida, 504 : 

 Hirii.do. 514: Hirudinea, 520: Apux, 

 537 : Abacus, 556: Crustacea, fV/v- 

 itus, 610: Myriapoda, 618: Peri- 

 planeta, 627, 628 : Insects, 646 : Scor- 

 pion, 658: Arachnicla, 671:, Mussel, 

 691 : Pelecypoda, 708 : Amphineura, 

 718, 119: Triton, 732: Gastropoda, 

 748 : Scaphopoda. 757 : Rhodope, 758 : 

 S'pia, 773. 775: ' Xanfilu*, 787, 788: 

 Cephalopoda, 798 



Reqnienia, 700, 701 



Reservoir (Euglena), 68 



Respiration, 13*, 35 



Respiratory organs, 35* : Starfish, 376 : 

 Sea-urchin, 399: Holothurian, 404: 

 Chajtopoda, 471: Hirudinea, 5u-J : 

 Apn, 534: Astacus, 549, 550: Crus- 

 tacea, 594 : Peripatu*, 609 : Myria- 

 poda, 617 : Periplaneta, 626, 627 : 

 Insects, 641, 642: Scorpion, 657: 

 Arachnida. 668 : Mussel, 685 : Pelecy- 

 poda, 702, 704: Triton, 725: Gas- 

 tropoda, 742 : Sepia, 766 : Xautilut, 

 781 : Cephalopoda, 797 



Respiratory trees, 404, 428 



Retina, 39 " 



Retinophore, 732* 



Retinula, 536*, 537, 556 



Retractor muscles, 683 



Rhabdites, 263 



Rhabditis-form, 310 



Bhabdocoelida, 252*, 255, 257, 263, 265, 

 2S6, 267, 268, 269, 271, 272, 273, 276, 

 283, 284 



Rhabdogaster, 319 



Rhabdome, 563*, 537 



Rhabdonema niyrovenosum, 308, 310 



Rhagon-type of Sponge, 118* 



Rhinophore, 787* 



Rhipidodendron, 71, 73, 74 



Rhipidoglossa, 733*, 756 



Ehizocephala, 565*, 579, 580 



Rhizopoda, 45* : Example, 46 : Clas- 

 sificatioii and general organisation, 

 47 



Rhizostomae, 177*, 182, 183, 227 



Rhizota, 328*, 330, 333 



Rhodope, 758 



Rhombogene, 232 



Rhopalura, 232 



Rhynchobdellida, 516*. 517, 518, 519, 

 520 



Rhynchodemus, 255* 



Rhynchonella, 366, 369 



Rhynchota, 100 



Rhyncocrele, 289* 



Ring- vessel, 270*, 283 



Rock-lobster, 569 



Rock systems, 7 



Rocks, igneous and aqueous, 7* 



Rosette, 407* 



Rosette (Earthworm) 461 



Rosette plate, 418 



Rostellum, 246* 



Rostrum, 542* 



Rotalia, 52 



Rotation, sense of, 39 



Rotifer, 328 



Rotifera, 323* : Distinctive characters 

 and classification, 327* : External 

 characters, 330 : Digestive organs, 

 333 : Excretory system, 333 : Nervous 

 system and Sense-organs, 334 : Re- 

 production and Development, 344 : 

 Ethology, 335 : Affinities, 335 



Rotulse, 398* 



Round-worms, 297 See Nemathelmin- 

 thes 



Rugosa, 210* 



lobelia, 478 

 Saccammina, 53 

 Saccocirrus, 465, 477 

 Sacculi, 409* 



Sacculina, 565, 579, 580, 599 

 Sagartia, 190. 191 

 Sagitta, 316, 317, 318 

 Sail, of Siphonophora, 163, 166 

 Salinella, 233, 234 



