6i8 



INDEX. 



Psammobia, 285. 



Pseuderabryo, 138. 



Pseudobranchia, 366. 



Pseudohsemal system, ISO. 



Pseudo-hearts, 273. 



Pseudonavicellse, 45. 



Pseudopodia, 43, 46, 48. 



Pseudoscorpionidce, 227. 



Psittacidce, 457, 



Psolus, 158. 



Psorospermice, 46. 



Ptarmigan, 454. 



Pteraspis, 369, 378. 



Pterichthys, 368, 378. 



Pteroceras, 294. 



Pterodactyles, 419, 420. 



Pteromys, 546. 



Pteropidce, 549. 



Pteropoda, 253, 286; general characters of, 

 297, 298; foot of, 297; shell of, 297; di- 

 visions of, 298 ; distribution of, in space, 

 298; in time, 313. 



Pteropus, 549. 



Plerosauria, 397; general characters of, 

 419 ; distribution of, in time, 420. 



Pterygotus, 210, 211. 



Ptilodictya, 276. 



Ptilograpsus, 106. 



Ptilopora, 276. 



Ptychoeeras, 310, 315. 



Pulicidce, 246. 



Pulmogasteropoda, 288, 290. 



Pulmonaria (Arachmda), 224, 227. 



Pulmonifera (Moliusca), 290, 293, 296. 



Puma, 541. 



Pupa, 239, 240. 



Pupa, 296, 313. 



Pupina, 297. 



Purples, of Wheat, 172. 



Purpura, 294. 



Pycnogonum, 225. 



Pygidium, 208. 



Pyramidella, 295. 



Pyramidellidce, 292, 295. 



Pyrosomidce, 270. 



Pyrula, 294. 



Python, 402, 406. 



QUADRATE Bone, 330, 402, 404. 



Quadrumana, 475, 476; 478, 484, 488; 

 characters of, 552 ; sections of, 552 ; dis- 

 tribution of, in time, 568. 



Quagga, 515. 



RABBIT, 542, 543. 



Racoon, 535. 



Radiata, 74. 



Radiolaria, 57; characters of, 58. 



Radiolites, 284. 



Raia, 374. 



Rallidce, 448. 



Rallus, 449. 



Ramphorhynchus, 419, 421. 



.Rtma, 390. 



Ranidce, 390. 



Raptores, 443 ; characters of, 464 ; sections 



of, 468. 

 Rasores, 443 ; characters of, 453 ; sections 



of, 453. 



Rastrites, 106. 

 Rat, 545. 

 Ratel, 536. 



Ratitce, 442. 



Rays, 370, 373, 374, 380. 



Red Coral, 122, 129. 



Regnum Protisticum, 7. 



Rein-deer, 522, 523, 565. 



Reproduction, general phenomena of,23-33; 

 sexual, 23 ; non-sexual, 24-33. 



Reptilia, 337, 393 ; general characters of, 

 393-397; jaw of, 394; teeth of, 395; cir- 

 culation of, 396; respiration of, 397; 

 orders of, 397. 



Respiratory tree, of Holothurians, 154. 



Respiratory tubes, of Rotifera, 174. 



Reticulosa, 51, 53 (see Foraminifera). 



Retiolites, 106. 



Reversed shells, 257. 



Rhabdocoela, 167. 



Rhabdoidea, 54. 



Rhabdopleura, 106, 263. 



Rhamphastidce, 457, 458. 



Rhea, 452. 



Rhinoceridce, 513, 565. 



Rhinoceros, 512, 513, 514, 565. 



Rhinolophidce, 548. 



Rhinolophus, 549. 



Rhizocrinus, 150, 155. 



Rhizophysiadce, 95. 



Rhizopoda, 44 ; characters of, 46 ; pseudo- 

 podia of, 46; divisions of, 47. 



Rhizostoma, 104, 105. 



Rhizostomidce, 99 ; definition of, 101 ; de- 

 velopment of, 101-103; structure of re- 

 productive zooids of, 104, 105. 



Rhynchonelli, 274, 277. 



Rhynchonellidce, 272, 274. 



Rhynchosaurus, 419. 



Rhynchota (see Hemiptera). 



Rhytina, 479, 503, 504. 



Ribbon-worms, 167. 



Rissoa, 295. 



Rodentia, 475, 484, 487 ; general characters 

 of, 541 ; families of, 543 ; distribution of, 

 in time, 568. 



Rorqual, 508. 



Rot, of Sheep, 165. 



Rotalina, 53. 



Rotatoria, 172 (see Rotifera). 



Rotifera, 135, 158; general characters of, 

 172 ; wheel-organ of, 173 ; water-vascular 

 system of, 174; masticatory organs of, 

 173 ; affinities of, 176; vitality of, 5 ; dis- 

 tinctions from Infusoria, 176. 



Round Worms, 169. 



Rugosa, 111, 124 ; characters of, 123 ; dis- 

 tribution of, in time, 132; families of, 134. 



Ruminantia, 511, 512; characters of, 517; 

 dentition of, 519; stomach of, 518; fa- 

 milies of, 520 ; distribution of, in time, 

 565. 



Rupicapra, 525. 



Sabella, 184, 188. , , 

 Sagitta, 189. 



Salamanders, 386, 387, 892. 

 Salamandra, 387, 390. 

 Salmonidce, 361. 

 Salpa, 269. 

 Salpidce, 270. 

 Sand-pipers, 450. 

 Sand-worms, 181, 185. 

 Sanguisuga, 181, 182. 

 Sarcode, 42; characters of, .43. 



