Xil 
Possum, the, 15. 
Potamohippus, 436. 
Potamotherium, 486. 
Potoroo, the, 413. 
Potto, the, 484, 
Poulpe, derivation of the French term, 
3) 
Power-cad, the, 219. 
Predones, 170. 
Prairie dog, the, 469, 470. 
Prairie hen, the, 376. 
Pratincoles, the, 378. 
Presbytis, 497. 
Priocera, 156. 
Priodon, 407. 
Prionide, 161. 
Prionodon obscurus, 241. 
Prionotus, 222. 
Prionus, 162. 
Pristidini, 242. 
Pristis, 242, 243. 
Pristiurus, 241. 
Proboscidea, 15. 
Proboscidians, the, 438. 
Procellaria, 15; P. capensis, 389; pro- 
cellaride, 388. 
Proctotrupide, 172. 
Procyon, 483. 
Procyonide, 483. 
Progne purpurea, 317. 
Prosimiw, 493. 
Proteles, 490. 
Proteus, a genus of infusoria, descrip- 
tion of the, 18; proteus diffluens. 
24; P. anguinus, 25]. 
Protocheerus, 440. 
Protopithecus, 495. 
Protopteri, 205. 
Protopterus annectens, 239. 
Protozoa, a name sometimes given to 
infusoria, 18. 
Psammoinys, 464. 
Psammophis flagelliformis, 270. 
Pselaphidee, 162. 
Pselaphides, 155. 
Pseudocarcinas gigas, 118. 
Pseudochirus, 415. 
Pseudodon, the, of Gould, 70. 
Pseudopus. 274. 
Pseudostoma bursarius and talpoidea, 
468. 
Pseudotriton, 255. 
Psittacide, 361. 
Psittacina:, 362. 
Psittacus, 15; P. erythacus, &c., 362, 
363. 
Psocide, 166, 167. 
Psophia crepitans, , 379; 
ib. 
Psophodes crepitans, 331. 
Psychoda, 193. 
Psylidee, 186. 
Ptarmigans, the, 376. 
Pterocera, 87. 
Pterovles bicinctus and alchata, 376; 
pterocline, ib. 
Pterodactylus, 284. 
Pterodon, 419. 
Pteroglossus aracari, 361. 
Pteromys, 278; P. volucella, 468. 
Pterophoride, 179; pterophorus pen- 
tadactylus, ib. 
Pteropoda, 11, 77. 
Pieropodide, 479; pteropus, 15; P. 
vulgaris, ib. 
Pterosaurii, 284, 
Pterosomide, 73. 
Pterotracheide, 78. 
Ptilonopus, 368. 
Ptilonorhynchine, 353; 
chus nitens, &c., ib. 
Ptilota, the, or winged insects, of Aris- 
toile, 95, 131. 
Ptinide, 158. 
Ptychopleures, 274. 
Ptyodactyla, 281. 
Ptyodactylus, 14, 
Puff-birds, the, 323. 
Puffin, the, 387. 
Pulex, 13; P. irritans and penetrans, 
148. 
Pulmonaria, 12, 120. 
Pulmonata, 10. 
Pulmonigrada, 22, 30. 
Puma, the, 491. 
Pumpkin-seed, 221. 
950 
psophine, 
ptilonorhyn- 
INDEX TO ZOOLOGY. 
| Pupa state of insects, general obser- | 
vations on the, 134, 135; exter-| 
nal appearance of the pup, 135. 
Pupipara, 196. 
Pupivora, 170. 
Purpura. lapillus, 86. 
Purpuride, 86. 
Putorius, 485. 
Pycnodontes, 235. 
Pecuceouidey 1215 pycnogonum, 113, 
Pycnonotine, 344, 
Pycnonotus jocosus, 344. 
Pygeera bucephala, 18}. 
Pygmeodon, 430. 
Pyralida, 180. 
Pyramideila, 86. 
Pyramidellide, 86. 
Pyranga rubra, &c., 356. 
Pyrgoma, 102. 
Pyrochroa, 159. 
Pyrochroide, 159. 
Pyroderus scutatus, 352. 
Pyrosoma, 55. 
Pyrrhocoracine, 353; pyrrhocorax al- 
pinus. ib. 
Pyrrhocoris apterus, 189. 
Fe europea, 359; pyrrhuline, 
Python, 269. 
Pyxis, 287. 
Quadrumana, 15, 491. 
Quails, the, 375. 
Querula rubricollis 
344, 
Queruline, 344. 
Quiscalinee, 354; quiscalus versicolor, 
&c., ib. 
and militaris, 
Rabbits, the, 456. 
Racers, a species of snake so called, 
269 
Racoons, the, 483. 
Radiata, the, why so called, 8; brief 
summary of the classes included 
under, 9, 10; all forms in which 
radiated structure .is evident in- 
cluded under, 25; included by 
Cuvier under the zoophyta, ib.; 
divided into three classes—Colente- 
rata, Zoophyta, and Echinodermata, 
ib. 
Rafinesque, the genus loncosilla in- 
stituted by, 70. 
Raia, 243. 
Raiadee, 240, 242. 
Rails, the, 383. 
Rajini, 243. 
Rullide, 383. 
Rallus, 15; R. aquaticus, crex, &c., 
383. 
Ramphastide, 361. 
Pal phaston erythrorhynchus, &c., 
61. 
Rana, 14, 258. 
-Ranatra Jinearis, 187. 
Ranide, 257. 
Ranina, 115. 
Raninide, 115. 
Raphidia, 168. 
Raphidiide, 168. 
Raptores, 293. 
Rasores, 294. 
Rat-kangaroo, the, 413. 
Ratel, the, 484. 
Ratelus, 484. 
Rats, the, 461-465, 468. 
Rattlesnake, the, 266. 
Ravens, the, 351. 
Rays, the, 240. 
Recurvirostra avocetta, &c., 351; re- 
curvirostrinee, ib. 
, | Red-birds, the, 356. 
Red-fish, the, 224. 
Redstarts, the, 337; 
346. 
Reduviide, 188. 
Redwing, the, 342. 
Regulus auricapillus, 337, 
| Reindeer, the, 450. 
Reithrodon. 464. 
Reptiles, chief characteristics and or- 
ders of, 14. 
Reptilia, chief characteristics and 
orders of, 14; circulation of the 
the American, 
blood in, 244; respiration of, ib. 
effect of temperature on, 245; rudi- 
mentary limbs of, ib.; particulars 
respecting the anatomical structure 
of, 245-247; hybernation of, 248; 
fecundity of, ib.; distinguishing fea- 
tures of the reptilia nuda, 249: 
principal differences between the 
reptilia nuda and the reptilia squa- 
mata, 261, 262. 
Republican swallow, the, curious fea- 
ture in the history of, 318. 
Retepora, 54. 
Reticulata, 109. 
Rhea americana and darwinii, 377. 
Rhinatrema, 261. é 
Rhincophora, 160. 
Rhinobatini, 242. 
Hi oceroe, 436; rhinocerotide, 436, 
Pf . 
Rhinodontini, 242. ; 
Rhinolophus ferrum equinum, 477. 
Rhinopoma, 478. 
Rhinoptera, 243. 
Rhipiptera, 143, 189. 
Rhizodontes, 282. 
Rhizomys, 464. 
Rhizopoda, 75. 
Rhizotrogus, 157. 
Rhombus maximus 
2208 ah 
Rhopalocera, 179, 183. 
Biyncholites, the fossils so called, 
De 
and vulgaris, 
Rhynchosaurus, 282. 
Rhynchota, 184, 185. 
Ringdove, the, 368. 
Riparii, 188. 
Robin, the American, or common mi- 
gratory thrush, 342. 
Robins, the, 337. 
Rock-fish, the, 221. 
Rodentia, 15, 455. 
Roebuck, the, 449. 
Rollers, the, 321. 
Rondeletius, author of a work on 
ichthyology, 2. 
Rook, the, 352. 
Rorqual, the, 421. 
Rose fish, the, 223. 
Rostellaria rectirostris, 37. 
Rostramus hamatus, 306. 
Rostrati, 235. 
-Rot, the, in sheep, caused by a species 
of trematoda, 46. 
Rotatoria, 104. 
Rotifer vulgaris, 29. 
Rotifera, 9, 104. 
Roussettes, the, 479. 
Ruffe, the, 222. 
Ruminantia, 15, 445. 
Runners, the, 378. 
Rupicapra, 452. 
Rupicola aurantia, 347. 
Rutelide, 156. 
Rypophaga, 154, 155. 
Rytina, 432. 
Rytinidee, 432. 
Ryzeena, 487. 
Sabella, 101. 
Sable, the, 485. 
Saccomyina, 461. 
Saccomys, 461, 462. 
Saddleback, the, or black-backed gull, 
389. 
Sagride, 162. 
Sajous, the, or sapajous, 495. 
Salamander, the, 250, 252, 253, 256. 
Salamandra, 14, 253, 256; salaman- 
drine, 261. 
Salda, 188. 
Salmo, 211; salmonidee, ib. ; salmo salar 
and fario, ib.; S. fontinalis, ame- 
thystus, confinis, and  siskewit, 
212, 
Salmon, the, 211, 212, 221. 
Salpa, 10, 55. 
Salpingidee, 159. 
Salt water trout, the, or weak fish, 
223. 
Salticinee, 128; salticus formicarius, 
129. 
Salvator, 276. 
Salviani, author of a work on ichthyo- 
logy, 2. 
