INDEX 



V47 



Rangifer, 696, 698, 724 



Kanidae, 545, 559, 560, 562 



Eat, 703, 704 



Rat-fish, 472 



Ratitae, 631, 633 



Rattlesnake, 590 



Rays, 465, 469 



Razor-shell, 308 



Recapitulation theory, 14 



Receptaculum ovorum, 154 



Rectal gland, 330, 461 



Recti abdominis, 527 



Rectum, 137, 238, 305 



Rectus muscles, 437 



Red blood-corpuscles, 433 



Red-deer, 698 



Redia, 105 



Red spider, 269 



Red squirrel, 702 



Reindeer, 697, 698 



Renal papillae, 395, 401 



Renal-portal veins, 435, 462 



Reno-pericardial canal, 288, 315 



Repetition of parts, 24, 29 



Reproduction, 7; by fission, 19, 26, 

 38, 58; by sporulation, 19 



Reproductive cells, 154 



Reproductive system, of Annelids, 154, 

 164 ; of Arthropods, 192, 195, 243, 

 266 ; of Brachiopods, 374 ; of Ces- 

 toda, 108; of Echinoderms, 337, 

 354 ; of Molluscs, 295, 296, 307, 321 ; 

 of Nematodes, 129; of Polyzoa, 378, 

 379; of Rotifers, 124; of Trema- 

 todes, 102, 103 ; of Turbellaria, 97 ; 

 of Vertebrates, 403, 438, 441, 463, ' 

 539, 557, 582, 627 



Reptilia, 450, 567, 579; classification 

 of, 568, 604; fossil representatives 

 of, 602 



Respiration, 4 



Respiratory system, of Arthropods, 

 229, 241; of Birds, 623 ; of Mam- 

 mals, 655 



Respiratory tube, 447 



Reticulum, 692 



Retina, 416, 422, 423 



Retinula, 271 



Retractor muscles, 301 



Rhabdites, 94 



Rhabditis, 131 



Rhabdocoela, 98, 99, 112 



Rhabdocoelida, 98, 111 



Rhabdome, 197 



Rhachis, 607 



Rhea, 631, 633 



Rhinoceros, 687, 688, 689, 723 



. Rhinocerotidae, 688, 723 



Rhinochimaera, 472, 513 



Rhinolophus, 708, 725 



Rhizocrinus, 363 



Rhizomastigina, 34, 46 



Rhizopoda, 42, 46 



Rhizota, 126 



Rhynchobdellidae, 162, 165, 166 



Rhynchocephala, 568, 582, 604 



Rhynchonella, 370, 374, 375 



Rhytina, 700 



Ribs, 414, 438 



Right whale, 683 



River-bass, 493 



River-trout, 490 



Roach, 485 



Rock-wallaby, 660, 664 



Rodentia, 700, 725 



Rods and cones, 422 



Roe-deer, 698 



Roller, 633 



Rorqual whale, 683 



Rosette, 365 



Rostellum, 106 



Rostrum, 456 



Rotifer, 121, 123, 126 



Rotifera, 121; classification of, 126 



Rotulae, 349 



Round-worms, 127 



Rumen, 692 



Ruminantia, 692 



Sacculated, 113 



Sacculus, 421 



Sacral prominence, 545 



Sacral vertebra, 522, 547 



Sagitta, 382, 383, 384 



Salamander, 519, 533, 544 



Salamandra, 533, 537, 561 



Salamandridae, 561 



Salamandrinae, 543 



Salamandroidea, 542, 543, 561 



Saliva, 656 



Salivary-ducts, 291; -reservoir, 238 



Salivary glands, of Helix, 291; of 



Lithobius, 231; of Mammals, 655; 



of Mesostoma, 96; of Stylopyga, 



238 



Salmo, 476, 477, 480, 490, 514 

 Salmon, 476, 477, 480, 489, 490, 491 

 Salmonidae, 489, 490, 514 

 Salpa, 411, 412 

 Salvelinus, 490, 514 

 Sand- dollar, 356 

 Sand-grouse, 635 

 Sand-lizard, 586 

 Sardine, 490 



Sauria, 568, 585, 586, 604, 605 

 Sauropsida, 606 

 Saw-fish, 470 

 Saw-fly, 250, 256 

 Scale-insects, 257 

 Scales, of Elasmobranchii, 455 ; of 



Reptiles, 568 

 Scallop, 303, 308 



