Galeopithecus, 131 _n._;
Giraffe, fossil, 177;
--tail, 128 _n._;
Goat, run wild at Tahiti, 172;
Guanaco, 175;
Guinea-pig, 69;
Hare, S. American, 158 _n._;
Hedgehog, 82 _n._;
Horse, 67, 113, 115, 148, 149;
--checks to increase, 148, 149;
--increase in S. America, 90;
--malconformations and lameness inherited, 58;
--parentage, 71, 72;
--stripes on, 107;
--young of cart-horse and racehorse resembling each other, 43;
Hyena, fossil, 177;
Jaguar, catching fish, 132;
Lemur, flying, 131 _n._;
Macrauchenia, 137;
Marsupials, fossil in Europe, 175 _n._, 177;
--pouch bones, 232, 237;
Mastodon, 177;
Mouse, 153, 155;
--enormous rate of increase, 89, 90;
Mule, occasionally breeding, 97, 102;
Musk-deer, fossil, 177;
_Mustela vison_, 128 _n._, 132 _n._;
Mydas, 170;
Mydaus, 170;
Nutria, _see_ Otter;
Otter, 131, 132, 170;
--marsupial, 199, 205, 211;
Pachydermata, 137;
Phascolomys, 203, 212;
Pig, 115, 217;
--in oceanic islands, 70;
--run wild at St Helena, 172;
Pole-cat, aquatic, 128 _n._, 132 _n._;
Porpoise, paddle of, 38, 214;
Rabbit, 74, 113, 236;
Rat, Norway, 153;
Reindeer, 125;
Rhinoceros, 148;
--abortive teeth of, 45, 231;
--three oriental species of, 48, 249;
Ruminantia, 137 and _n._;
Seal, 93 _n._, 131;
Sheep, 68, 78, 117, 205;
--Ancon variety, 59, 66, 73;
--inherited habit of returning home to lamb, 115;
--transandantes of Spain, their migratory instinct, 114, 117,
124 _n._;
Squirrel, flying, 131;
Tapir, 135, 136;
Tuco-tuco, blindness of, 46, 236;
Whale, rudimentary teeth, 45, 229;
Wolf, 71, 72, 82;
Yak, 72

Metamorphosis, literal not metaphorical, 41, 217

Metamorphosis, _e.g._ leaves into petals, 215

Migrants to new land, struggle among, 33, 185

Migration, taking the place of variation, 188

Monstrosities, as starting-points of breeds, 49, 59;
their relation to rudimentary organs, 46, 234

Morphology, 38, 215;
terminology of, no longer metaphorically used, 41, 217

Mutation, _see_ Sports

Natural selection, _see_ Selection

Nest, bird's, _see_ Instinct

Ocean, depth of, and fossils, 25, 195

Organisms, gradual introduction of new, 23, 144;
extinct related to, existing in the same manner as repres