INDEX 



601 



Reduction division, 134, 138 

 Reduviidae, 428 

 Regeneration, 149 

 Regions, faunal, 160 

 Regression, 45 

 Regularia, 305 

 Reindeer, 569 

 Remiges, 534 

 Remora, 511 

 Renilla, 230 

 Reproduction, 55, 128 



and fertilization, 149 



asexual, 128 



sexual, 129 

 Reptilia, 521 

 Residual body, 183, 186 

 Respiratory canal, 475 



organs, 96 

 Reticularia, 178 

 Reticulum, 568 

 Retina, 118, 476 

 Retetelariae, 396 

 Rhabdites, 241, 265 

 Rhabdocoelida, 242 

 Rhabdom, 119 

 Rhabdopleura, 449 

 Rhachiglossa, 334 

 Rhachis, 293, 364 

 Rhamnites, 241 

 Rhamphastos, 544 

 Rhea, 542 

 Rhegmatodes, 218 

 Rhinencephalon, 469 

 Rhinoceros, 568 

 Rhinosporidium, 191 

 Rhizocephala, 374 

 Rhizocrinus, 302 

 Rhizopoda, 170 

 Rhizostomeae, 223 

 Rhopalonema, 212, 214 

 Rhopalocera, 433 

 Rhynchobdellida?, 284 

 Rhynchobothrium, 254 

 Rhynchocephalia, 527 

 Rhynchoeta, 198 

 Rhynchonella, 288, 290 

 Rhynchota, 427 

 Rhynchophora, 424 

 Rhytina,57O 

 Ribs, 454 

 Right whale, 572 

 Rigor, 55 



Ring canal, 211, 292 

 Roaches, 421 

 Robber flies, 431 



Rocky Mountain sheep, 569 



Rodentia, 566 



Rods and cones, 119, 47(1 



Root barnacles, 374 



Rorqual, 572 



Rossia, 347 



Rostellum, 249 



Rostrum, 341, 372, 407, 504, 



537 



Rotalia, 171, 180 

 Rotatoria, 259 

 Rotifera, 259 

 Round worms, 263 

 Rove beetles, 424 

 Rudistidae, 324 

 Rugosa, 230 

 Rumen, 568 

 Ruminantia, 568 

 Rupricapra, 569 



Sabellidas, 277 

 Sabinea, 380 

 Sable, 565 

 Sicconereis, 275 

 Sacculina, 374 

 Sacculus, 117, 478 

 Sacculus vasculosus, 499 

 Sagartia, 231 

 Sagitta, 262 

 Sagittal axis, 124 

 Salinella, 200 

 Salivary glands, 96 

 Salamanders, lungless, 517 

 Salamandra, 520 

 Salamandrina, 520 

 Salmon, 510 

 Salpa, 447 

 Salpseformes, 447 

 Saltigrada, 396 

 Salve bug, 386 

 Saltatoria, 421 

 Sand dollar, 306 

 San Jose scale, 430 

 Sapphirina, 369 

 Sapajou, 574 

 Sarcode, 52 

 Sarcocystis, 191 

 Sarcolemma, 83 

 Sarcoptes, 397 

 Sarcosepta, 228 

 Sarcophilus, 560 

 Sarcopsylla, 431 

 Sarcosporida, 191 

 Sarsia, 217 

 Saurii, 529 



Sauropsida, 520 

 Saururas, 541 

 Savigny's law, 352 

 Savis' vesicles, 500 

 Saw fly, 425 

 Sawfishes, 507 

 Saxicava, 324 

 Scake of ear, 479 

 Scale insects, 428 

 Scales of fishes, 494 

 Scallops, 323 

 Scalops, 564 

 Scansores, 544 

 Scape, 533 

 Scapharca, 323 

 Scaphiopus, 520 

 Scaphognathite, 377 

 Scaphopoda, 325 

 Scapula, 464 

 Scarabseidse, 424 

 Sceleporus, 529 

 Schizodont, 318 

 Schizogony, 169, 186, 299 

 Schizopoda, 375 

 Schizopodal foot, 360 

 Schizosomi, 382 

 Schwann's sheath, 85 

 Scincidas, 530 

 Sciuromorpha, 566 

 Sciuropterus, 566 

 Sciurus, 566 

 Sclera, 120, 457, 476 

 Scleroderma, 231 

 Sclerodermites, 230 

 Sclerophylla, 231 

 Sclerosepta, 228 

 Sclerotica, 120, 476 

 Sclerotic bones, 525 

 Sclerotomes, 467 

 Scolex, 247 

 Scolopax, 544 

 Scolopendra, 403 



heart of, 103 

 Scolopendrella, 434 

 Scombridas, 511 

 Scops, 544 

 Scorpions, 391 



false, 394 



water, 428 

 Scorpionida, 391 

 Sculpins, 511 

 Scutellum, 408 

 Scutigera, 403 

 Scutum, 372 

 Scyphomedusaa, 220 



