598 
GENERAL INDEX. 
PYRAMIDELLID.®, ii. 509 
Pyrameis, ii. 474 
Pyranga, ii. 98 
Pyrenestcs , ii. 286 
Pyrgisoma, ii. 284 
Pyrgita, ii. 284 
Pyriglma, ii. 104 
Pyroeephalus, ii. 101, 291 
Pyroderus, ii. 103 
Pyromelana, ii. 286 
Pyrophthalma, ii. 259 
Pyrrhocoma, ii. 99 
Pyrrhospiza, ii. 285 
Pyrrhula, ii. 285 
Pyrrhulauda, ii. 289 
Pyrrkutina, ii. 445 
Pyrrhulopsis, ii. 325 
Pyrrhuloxia, ii. 285 
Pyrrhura, ii. 328 
Pytetia, ii. 287 
Python, ii. 381 
Pythonidce, European Miocene, i. 165 
PYTHONID^E, ii. 381 
Pythonodipsas, ii. 379 
Pythonopsis, ii. 376 
Pythons, ii. 381 
PyxAcephalus, ii. 420 
Pyxis, ii. 408 
Q. 
Quadrumana, fossil, ii. 178 
Quail-snipes, ii. 354 
Querquedula, ii. 363 
Querulct, ii. 102 
Quiscalus, ii. 282 
R. 
Rachis, ii. 524 
Racoon-dog of N. China, i 226 
Racoons, ii. 200 
Raia, ii. 462 
RAIIDA3, ii. 462 
Rails, ii. 351 
RALLIDJ3, ii. 351 
Rallina, ii. 352 
Rallus, ii. 352 
Rana, European Miocene, i. 166 
ii. 420 
Raniceps , ii. 439 
RANIDjE, ii. 420 
Ranodon, ii. 413 
Bappia, ii 419 
Rasbora, ii. 452 
Rasborichthys, ii. 453 
Rattle-snakes, ii. 384 
Rays, ii. 462 
Realia, ii. 521 
Rectes, ii. 272 
Recurvirostm, ii. 353 
Regalecus, ii. 432 
Region, the best term for the primary zoo- 
logical divisions, i. 68 
Arctic, why not adopted, i. 69 
Palaearctic, defined, i. 71 
Palsearctie, subdivisions of, i. 71 
Ethiopian, defined, i. 73 
Ethiopian, subdivisions of, i. 73 
Oriental, defined, i. 75 
Oriental, subdivisions of, i. 76 
Australian, defined, i. 77 
Australian, subdivisions of, i. 77 
I Region, Neotropical, defined, i, 78 
NeotropieaL, subdivisions of, i. 78 
Nearctic, defined, i. 79 
Nearctic, distinct from Pala-arctic, i. 79 
Nearctic, subdivisions of, i. 80 
Regions, zoological, i. 50 
zoological, how they should be formed, i, 
53 
zoological, may be defined by negative or 
positive characters, i. 54 
zoological, by what class of animals best 
determined, i. 56 
for each class of animals, not advisable, 
i. 58 
zoological, proposed since 1857, i. 58 
zoological, Mr. Sclater’s, i. 59 
zoological, discussion of those proposed 
by various authors, i. 61 
zoological, proportionate richness of, i. 6t 
temperate and tropical, well marked iu 
northern hemisphere, i. 65 
and zones, table of, i. 66 
comparative richness of, i. 81 
and sub-regions, table of, i. 81 
order of succession of the, i. 173 
Registoma, ii. 521 
Reguloides, ii. 258 
Regulvs, ii 258 
Reinwardtcenas, ii. 333 
Reinwar dtipims, ii. 303 
Reithrodon, ii. 230 
Representative species, i. 4 
Reptiles, means of dispersal of, i. 28 
classification of, i. 98 
Miocene of Greece, i. 116 
of Indian Miocene deposits, i. 123 
extinct Tertiary, i. 165 
cosmopolitan groups of, i. 176 
peculiar to Palaearctic region, i. 186 
of Central Europe, i. 195 
of the Mediterranean sub-region, i. 204 
of the Siberian sub-region, i. 220 
of the Manchurian sub-region, i. 22? 
table of Palsearctie families of, i. 236 
of the Ethiopian region, i. 254 
of the E. African sub-region, i. 260 
of W. Africa, i. 264 
S. African, i. 268 
of Madagascar, i. 279 
table of Ethiopian families of, i. 297 
of the Oriental region, i. 317 
of the Indian sub-region, i. 326 
of Ceylon, i. 327 
of the Indo-Chinese sub-region, i. 331 
of the Indo -Malay sub-region, i. 340 
table of Oriental families of, i 368 
of the Australian region, i. 396 
of New Guinea, i. 415 
of the Moluccas, i. 420 
of the Polynesian sub-region, i. 447 
of New Zealand, i. 456 
table of Australian families of, i. 472 
Neotropical, ii. 9 
of S. Temperate America, ii. 40 
of the Mexican sub-region, ii. 54 
of the Antilles, ii. 72 
table of N eotropical families of, ii. 88 
of the Nearctic region, ii. 119 
of California, ii. 128 
of Central N. America, ii. 131 
of Eastern United States, ii. 133 
of Canada, ii. 137 
table of Nearctic families of, ii. 142 
summary and conclusion, ii. 547 
REPTILIA, ii. 372 
Retropinna, ii. 447 
