INDEX. 
501 
Region, the best term for the primary zoo- 
logical divisions, 68 
Arctic, why not adopted, 69 
Palte arctic, defined, 71 
Palsearctic, subdivisions of, 71 
Ethiopian, defined, 73 
Ethiopian, subdivisions of, 73 
Oriental, defined, 75 
Oriental, subdivisions of, 73 
Australian, defined, 77 
Australian, subdivisions of, 77 
Neotropical, defined, 78 
Neotropical, subdivisions of, 78 
Nearetic, defined, 79 
Nearetie, distinct from Palrearctie, 79 
Nearetic. subdivisions of, 80 
Regions, zoological, 50 
zoological, how they should be formed, 53 
zoological, may be defined by negative or 
positive characters, 54 
zoological, by what class of auimals best 
determined, 56, 
for each class of animals, not advisable, 
58 
zoological, proposed since 1857, 58 
zoological, Mr. Sclater's, 59 
zoological, discussion of those proposed 
by various authors, 61 
zoological, proportionate richness of, 64 
temperate and tropical, well marked in 
northern hemisphere, 65 
and zones, table of, 66 
comparative richness of, 81 
and sub-regions, table of. 81 
order of succession of the, i 73 
Representative species, 4 
Reptiles, means of dispersal of, 28 
classification of, 98 
Miocene of Greece, 116 
of Indian Miocene deposits, 123 
extinct Tertiary, 165 
cosmopolitan groups of, 176 
peculiar to Palsearctic region, 186 
of Central Europe, 195 
of the Mediterranean sub region, 204 
of Siberian sub-region, 220 
of the Manchurian sub-region, 227 
table of Palsearctic families of, z3 6 
of the Ethiopian region, 254 
of the East African sub-region, 200 
of West Africa, 264 
S. African, 268 
of Madagascar, 279 
table, of Ethiopian families of, 297 
of the Oriental region, 317 
of the Indian sub-region, 326 
of Ceylon, 327 
of Indo-Chinese sub-region, 331 
of Indo-Malay sub-region, 340 
table of Oriental families of, 368 
of the Australian region, 396 
of New Guinea, 415 
of the Moluccas, 420 
of the Polynesian sub-region, 447 
of New .Zealand, 456 
table of Australian families of, 472 
Rhea, in Brazilian caves, 164 
Rhinoceros , Post- Pliocene, 112 
European Pliocene, 113 
Miocene of Greece. 116 
Indian Miocene, 122 
fossil remains of, at 16,000 feet elevation 
in Thibet, 122 
fossil in N. China, 123 
N. American Tertiary, 136 
Rhinoeeros-hornbill, figure of, 339 
Rhinocerotidce, N. American Tertiary, 136 
River-hog, of West Africa, figui e of, 264 
of Madagascar, figure of, 278 
Rivers, limiting the range of mammalia, 12 
limiting the range of birds, 17 
River-scene, in West Africa, 264 
Hodentia, classification of, 90 
range of Palasaretic genera of. 242 
range of Ethiopian genera of, 304 
range of Oriental' genera of, 374 
range of Australian genera of, 476 
Roden tia, European Pliocene, 113 
Mioeene of Greece, 116 
European Miocene, 120 
European Eoeene, 126 
N. American Post-Pliocene, 130 
N. American Tertiary, 139 
of Brazilian cates, 144 
S. American Pliocene, 147 
of S. American Eoeene, 148 
Ruff, figure of, 195 
8 . 
Sahara, a debatable land, 251 
Saiga, antelope of W. Tartary, 218 
Samoa Islands, birds of, 413 
Sandwiclj Islands, birds of, 445 
probable past history of, 446 
mountain plants of, 446 
depth of ocean around, 447 
Sand grouse, Pallas, of Mongolia, 226 
Satyr ites Reynesii, E uropean Cretaceous in- 
sect, 167 
Saunders, Mr. Edward, on the Buprcstids of 
Japan, 229 
Scelidotlurium, In Brazilian caves, 145 
S, American Pliocene, 147 
Schistopteurum, S. American Pliocene, 147 
Schweinfurth, Dr., on natural history of Cen- 
tral Africa, 252 
on limits of W. African sub-region, 262 
( note ) 
Sciunts, European Miocene, 120 
European Eocene, 126 
Sciumms, N. American Eocene, 140 
Sclater, Mr., on zoological regions, 59 
why his six regions are adopted, 63 
on birds of Sandwich Islands, 445 
Sea, as a barrier to mammalia, 13 
Seals, fossil in European Miocene, 118 
of Lake Baikal, 218 
Secondary formations, mammalian remains 
in, 159 
Secretary bird of Africa, figure of, 261 
Semnnpithccus, European Pliocene, 112 
Miocene of Greece, 115 
European Miocene, 117 
Indian Miocene, 121 
Semper, Dr., on Philippine mammalia, 345 
Serpen tarius, European Miocene, 162 
Seyehelle Islands, zoology of, 281 
amphibia of, 281 
Sharp, Dr., on Japan beetles, 229 
Sharpe, Mr. R. B., his arrangement of Accipi- 
tres, 97 
on birds of Cape Verd Islands, 215 
Sheep, Palaearctic, 182 
Siberia, climate of. 217 
Siberian sub-region, description of, 216 
mammalia of, 217 
birds of, 219 
reptiles and amphibia of, 220 
insects of, 220 
Simocyon, Miocene of Greece, 115 
