interfere with the continuation of the species. This appears to be a special adaptation of their peculiar instinct; for if the attacks were made on the nests of the Negro Ants, before those by whom the race is propagated are ready to issue forth, it must speedily become extinct.-When the Red Ants are about to sally forth on a marauding expedition, they send scouts to ascertain the exact position in which a colony of Negro Ants may be found; these scouts, having discovered the object of their search, return to their nest and report their success. Shortly afterwards, the army of Red Ants marches forth, headed by a vanguard, consisting of eight or ten Ants only, which is perpetually being changed, the individuals which constitute it, halting, when they have advanced a little before the main body, falling to the rear, and being replaced by others. When they have arrived near the Negro colony, they disperse, wandering through the herbage, and hunting about, as if aware of the neighbourhood of the object of their search, yet ignorant of its exact position. At last they discover the settlement; and the foremost of the invaders rushing impetuously to the attack, are met, grappled with, and frequently killed by the Negroes on guard. The alarm is quickly communicated to the interior of the nest; the Negroes sally forth by thousands; and the Red Ants rushing to the rescue, a desperate conflict ensues, which, however, always terminates in the defeat of the Negroes, who retire to the innermost recesses of their habitation. Now follows the scene of pillage. The Red Ants, with their powerful mandibles, tear open the sides of the Negro Ant-hill, and rush into the heart of the citadel. In a few minutes each of the invaders emerges, carrying in its mouth the pupa of a worker Negro; which it has obtained in spite of the vigilance and valour of its natural guardians. The Red Ants return in perfect order to their nest, bearing with them their living burthens. On reaching the nest, the pupa appear to be treated precisely as their own; and the workers, when they emerge, perform the various duties of the community with the greatest energy and apparent good-will; they repair the nest, excavate passages, collect food, feed the larvæ, take the pupa into the sunshine, and perform every office which the welfare of the colony seems to require; in fact, they conduct themselves entirely as if fulfilling their original destination.* *The details of this Appendix have been chiefly taken from Mr. Newman's very excellent "Familiar Introduction to the History of Insects." Cancer, 784 Canidæ, 195 Cape Hunting Dog, 196 Capriform Antelopes, 267 Capuchins, 159 Capybara, 217, 234 Cardiacea, 953 Cardium, 953 Carinaria, 181 Carnivora, 901 Carp, 567 Carpenter Bee, 697 Cartilaginous Fishes, 551 Caryophyllia, 1070 Cashmir Goat, 272 Cassidaria, 659 Cassis, 924 Cassowary, 439 Cercopida, 716 Certhiado, 419 Cervida, 260 Cestum Veneris, 1037 Cetacea, 207 Cetonia, 651 Chaetodon, 557 Chaionida, 433 Chalcidæ, 501 Chalcidida, 691 Chalcis, 691 Chameleonidæ, 492 Chamois, 264, 267 Char, 570 Charadriade, 445 Cinereous Erne, 370 Clothes'-Moth, 712 Clupeidæ, 571 Clypeaster, 1011 Coati, 200 Coal-fish, 574 Cobbler-fish, 559 Crab-eating Opossum, 309 Crabronida, 693 Crane, 447 Crested Curassow, 430 Crinoidea, 1016 Crocodile, 490 Cursores (Spiders), 755 Cursoria (Insects), 662 Curucui, 411 Cushat, 428 Cyamus, 796 Cycloidians, 586, 590 Cyclobranchiata, 928 Cyclops, 810 Cyclostomata, 585 Cydippe, 1035 Cynipida, 689 Cypræa, 922 Cyprenida, 567 Cypris, 808 Dab, 574 D. Dactylopterus, 556 Daman, 294 Day-flies, 674 Darwin's Rhea, 438 579 Darwin's theory of Coral formations, 1077 Dasyurus, 310 Dead-man's-hand, 1089 Death's-head Moth, 707 Deer, 260 Delphinidæ, 210, 211 Demoiselle, 447 Dendrophyllia, 1070 Desman, 177 Dermaptera, 663 Dibranchiata, 886 Dinornis, 442 Dinotherium, 303 Diodon, 579 Diptera, 724 Diving Spider, 759 Diurnal Owls, 381 Diurnal (Lepidoptera), 706 Dodo, 437, 441 Dog, 13, 14, 196 Dog-fish, 583 |