INDEX 



727 



373. 376; squid, 265, 267; starfish, 

 197; tapeworm, 163, 164 ; vertebrates, 



413- 



Rcptantia, 297, 298. 



Reptilia, 401, 527-574. 694. 695 ; classi- 

 fication, 534-539; economic impor- 

 tance, 570-571; poisonous, 560-570; 

 prehistoric, 572-574; review of orders 

 and families, 540-569. 



Respiration, external, 407 ; internal, 407 ; 

 of Ameba, 31; ccelenterates, 143; 

 earthworm, 223; echinoderms, 197, 

 204, 206; Granlia, 96; leech, 238; 

 mussel, 248; rotifer, 182. 



Respiratory system, 78; of Amphioxus, 

 397 ; crayfish, 284 ; dogfish, 425 ; fish, 

 451-452; frog, 482; honey-bee, 319, 

 320; insects, 334; perch, 438; 

 pigeon, 585 ; rabbit, 639 ; snail, 255 ; 

 spider, 373, 374; turtle, 532; verte- 

 brates, 407. 



Respiratory tree, 206, 207. 



Retina, 412, 505. 



Rhabdies, 155. 



Rhabd toslida, 156. 



Rhabdo pleura, 387, 389. 



Rhacianectes, 675. 



Rhagodes, 382. 



Rhagon, sponge, 99, 100. 



Rhampholeon, 537, 550. 



Rhamphorhytichns, 574. 



Rhea, 589, 596; Rhciformes, 589, 596. 



Rheotropism, 36, 58. 



Rhineura, 557. 



Rhinoceros, 644, 671, 672 ; Rhinocerotidce, 

 671. 



Rhinolophidoz, 651. 



Rhino phrynus, 512. 



Rhiptoglossi, 536, 550. 



Rhizopoda, 27-41. 



Rhodites, 366. 



Rhopalocera, 351. 



Rhopalura, 176. 



Rhynchocephalia, 527, 536, 546, 694, 695. 



Rhynchophora, 364. 



Rhynchops, 609. 



Rhynchotus, 597. 



Rhytina, 673. 



Ribs, 436, 636; false, 405 (see skeleton). 



Roccus, 465, 466. 



Rodenlia, 643, 658-660, 688-68g. 



Roller, 591, 610. 



Rorqual, 675. 

 Rossia, 268. 

 Rostrum, 277, 278. 

 Rotatoria, 181-183. 

 Rotifera, 181, 182, 183. 

 Ruminant, 668. 

 Rupicapra, 671. 



SabeUa, 236. 



Sacculina, 294, 300. 



Sacculus, 411. 



Sacrum, 582 (see skeleton). 



Sagitta, 180, 181. 



Sakis, 664. 



Salamanders, 477, 511, 514-517. 



Salamandra, 511, 516, 524, 525; Sala- 



mandridm, 511, 515-516; Salaman- 



droidea, 511. 

 Salicnlia, 477, 511, 517-522, 694. 

 Salmo, 460. 



Salmon, 443, 444, 459, 461, 475, 476. 

 Salmonida, 444, 459. 

 Sal pa, 393. 

 Salvelinns, 460. 

 Sand, dollar, 205 ; -hopper, 296, 301 ; 



-piper, 607. 

 Saperda, 363. 

 Sapphirina, 294. 

 Saprophytic nutrition, 43. 

 Sapsucker, 614. 

 Sarcopsylla, 360. 

 Sarcoples, 381. 

 Sarcorhamphus, 604. 

 Sarcosporidia, 53. 

 Sarcosystis, 53. 

 Sauria, 537, 551. 

 Scale insects, 345, 346, 347. 

 Scales, cycloid, 435, 448; ctenoid, 435, 



448; dermal, 433; ganoid, 435,448; 



of mammals, 676; of pigeon, 577; 



placoid, 424. 

 Scallops, 263. 

 Scalops, 649. 



Scaphiopus, 512, 518, 519. 

 Scaphirhynchus, 453. 

 Scaphognathite, 277, 279. 

 Scaphopoda, 243, 261. 

 Scapula, 404, 495, 496. 

 Scarabceidce, 361 ; Scarabeus, 362. 

 Sceloporus, 537, 555. 

 Schistosoma, 168. 

 Scincida?, 538, 557. 



