INDEX. 



841 



Keiudeer, 715, 716. 

 Renilla, 169. 



Reproduction, general phenomena of, 32 

 et seq. ; sexual, ib. ; non-sexual, 33 et 

 seq. 



Reptilia, 457 ; general characters of, 526 : 



jaw of, 527; teeth of, 528; circulation 



of, ib., 529; respiration of, ib., 530; 



orders of, ib. et seq. 



Respiratory tree of Holothurians, 220, 221. 



Respiratory tubes of Rotifera, 250. 



Reticulosa (see Foramlnifera), 67. 



Reversed shells, 370, 398. 



Rhabdoccela, 240. 



Rhabdoidea, 74. 



Rhabdophora, 144. 



Rhabdopleura, 375, 376, 378, 379. 



Rhamphastidce, 620, 621. 



RhamphorhyncJms, 565. 



Rhea, 596. 



Rhinatrema, 515. 



Rhinobatis, 500. 



Rhinocerotidcc, 695. 



Rhinoceros, 695, 696, 697. 



Rhiuolophidce, 764. 



Rhinolophus, 764. 



Rhinophrynus, 521. 



Rhipidogorgia, 170. 



Rhizocephala, 283 ; characters of, 285. 



Rhizocrinus, 208, 209, 212,. 222. 



Rhizophaga, 661. 



Rhizophylluiii, 175. 



Rhizopoda, 58 ; characters of, 61 ; pseudo- 

 podia of, i&. ; divisions of, ib. 



Rhizostoma, 143, 144. 



RhizostomidcK, 137 ; definition of, 139 ; 

 development of, 139 ; structure of re- 

 productive zooids of, 140. 



Rhodope, 413. 



Rhombus, 487. 



Rhopalocera, 356. 



Rhynchocephalia, 553. 



Rhynchoceti, 685, 691. 



Rhynchonella, 389, 395. 



Rhynchonellidce, 389, 394, 395. 



Rhynchophora, 362. 



Rhynchosaurus, 554, 5*53. 



Rhynchota (see Hemiptera). 



Rhytina, 648, 681, 683. 



Rhyzcena, 746. 



Ribbon-worms, 240. 



Right Whale, 686, 687. 



Ringed Snake, 543. 



River-snails, 412. 



Roach, 485. 



Robins, 627. 



Robulina, 70. 



Rock-kangaroos, 663. 



Rock-slaters, 305. 



Rock-snakes, 543. 



Roebuck, 715, 716. 



Rodentia, general characters of, 752 ; fa- 

 milies of, 754 et seq. ; distribution of, 

 in time, 760. 



Rorqual, 688. 



Rot of Sheep, 238. 



Rotalia, 70 



Rotalidea, 74. 



Rotatoria (see Rotifera). 



Rotifera, 10, 229 ; characters of, 248 ; 

 wheel-organ of, 249 ; masticatory or- 

 gans of, ib.; water-vascular system of, 



250; affinities of, ib. ; vitality of, 10; 



distinctions from Infusoria, 252. 

 Round-worms, 244. 

 Rucervus, 715. 

 Ruff, 611. 

 Rugosa, 154 ; characters of, 173 ; families 



of, 175 ; distribution of, in time, 185. 

 Ruminantia, 692, 703 ; characters of, 708 ; 



dentition of, 709 ; families of, 711-721 ; 



distribution of, in time, 722. 

 Rupicapra, 719. 

 Rusa, 714, 715. 



Sabella, 265. 



Sabellaria, 264, 265. 



Sabeltidce, 266. 



Sable, 743. 



Saccammina, 76. 



Saccomydce, 757. 



Saccosoma, 223. 



Saccutina, 286. 



Scemiridce, 263. 



Sagitta, 'ill, 272. 



Saki, 777. 



Salamanders, 516, 517, 518, 524. 



Salamandra, 518. 



Salamandrdla, 525. 



Salmon, 485. 



Salmonidce, 485. 



Salpidce, 387. 



Sand-crab, 311. 



Sand-grouse, 615. 



Sand-hopper, 304. 



Sand-lizard, 549. 



Sand-pipers, 611. 



Sand-stars, 205. 



Sand-worms, 267. 



Sanguisuga, 262. 



Sapajou, 777. 



Sarcode, 56. 



Sarcodictyon, 166. 



Sarcoids of Sponges, 84, 85, 86, 87. 



Sarcophaga, 667. 



Sarcophyton, 167. 



Sarcopsylla, 353. 



Sarcoptes, 321. 



Sarcorhamphus, 633. 



Sarsia, 130. 



Sauranodon, 560. 



Satiria, 546. 



Saurillus, 554. 



Saurobatrachia (see Urodela). 



Sauropsida, 459, 526. 



Sauropterygia, 530; general characters of, 



561 ; distribution of, in time, 562. 

 Saurornithes, 504. 633. 

 Saururoe, 594 ; characters of, 633. 

 Saw-fish, 500. 

 Saw-flies, 357, 358. 

 Scalaria, 413. 

 Scale-insects, 348. 

 Scallop, 402, 403. 

 Scalops, 767. 

 Scalpellum, 291. 



Scansores, 595 ; characters of, 619 ; fami- 

 lies of, 620. 



Scaphirhynchus, 489, 490, 494. 

 Scaphites, 436. 

 Scaphognathite, 281. 

 Scaphopoda, 412. 

 Schizognathce, 578. 

 Scincidce, 548, 549. 



