Parker, Mr., no bird or reptile in line of mammalian descent.
Parrakeet, young of; Australian, variation in the colour of the thighs of a male.
Parrot, racket-shaped feathers in the tail of a; instance of benevolence in a.
Parrots, change of colour in; imitative faculties of; living in triplets; affection of; colours and nidification of the; immature plumage of the; colours of; sexual differences of colour in; musical powers of.
Parthenogenesis in the Tenthredinae; in Cynipidae; in Crustacea.
Partridge, monogamous; proportion of the sexes in the; Indian; female.
Partridge-"dances."
Partridges, living in triplets; spring coveys of male; distinguishing persons.
Parus coeruleus.
Passer, sexes and young of.
Passer brachydactylus.
Passer domesticus.
Passer montanus.
Patagonians, self-sacrifice by; marriages of.
Patterson, Mr., on the Agrionidae.
Patteson, Bishop, decrease of Melanesians.
Paulistas of Brazil.
Pavo cristatus.
Pavo muticus, possession of spurs by the female.
Pavo nigripennis.
Payaguas Indians, thin legs and thick arms of the.
Payan, Mr., on the proportion of the sexes in sheep.
Peacock, polygamous; sexual characters of; pugnacity of the; Javan, possessing spurs; rattling of the quills by; elongated tail-coverts of the; love of display of the; ocellated spots of the; inconvenience of long tail of the, to the female; continued increase of beauty of the.
Peacock-butterfly.
Peafowl, preference of females for a particular male; first advances made by the female.
Pediculi of domestic animals and man.
Pedigree of man.
Pedionomus torquatus, sexes of.
Peel, J., on horned sheep.
Peewit, wing-tubercles of the male.
Pelagic animals, transparency of.
Pelecanus erythrorhynchus, horny crest on the beak of the male, during the breeding season.
Pelecanus onocrotalus, spring plumage of.
Pelele, an African ornament.
Pelican, blind, fed by his companions; young, guided by old birds; pugnacity of the male.
Pelicans, fishing in concert.
Pelobius Hermanni, stridulation of.
Pelvis, alteration of, to suit the erect attitude of man; differences of the, in the sexes of man.
Penelope nigra, sound produced by the male.
Pennant, on the battles of seals; on the bladder-nose seal.
Penthe, antennal cushions of the male.
Perch, brightness of male, during breeding season.
Peregrine falcon, new mate found by.
Period of variability, relation of, to sexual selection.
Periodicity, vital, Dr. Laycock on.
Periods, lunar, followed by functions in man and animals.
Periods of life, inheritance at corresponding.
Perisoreus canadensis, young of.
Peritrichia, difference of colour in the sexes of a species of.
Periwinkle.
Pernis cristata.
Perrier, M., on sexual selection; on bees.
Perseverance, a characteristic of man.
Persians, said to be improved by intermixture with Georgians and Circassians.
Personnat, M., on Bombyx Yamamai.
Peruvians, civilisation of the, not foreign.
Petrels, colours of.
Petrocincla cyanea, young of.
Petrocossyphus.
Petronia.
Pfeiffer, Ida, on Javan ideas of beauty.
Phacochoerus aethiopicus, tusks and pads of.
Phalanger, Vulpine, black varieties of the.
Phalaropus fulicarius.
Phalaropus hyperboreus.
Phanaeus.
Phanaeus carnifex, variation of the horns of the male.
Phanaeus faunus, sexual differences of.
Phanaeus lancifer.
Phaseolarctus cinereus, taste for rum and tobacco.
Phasgonura viridissima, stridulation of.
Phasianus Soemmerringii.
Phasianus versicolor.
Phasianus Wallichii.
Pheasant, polygamous; and black grouse, hybrids of; production of hybrids with the common fowl; immature plumage of the.
Pheasant, Amherst, display of.
Pheasant, Argus, display of plumage by the male; ocellated spots of the; gradation of characters in the.
Pheasant, Blood-
Pheasant, Cheer.
Pheasant, Eared, length of the tail in the; sexes alike in the.
Pheasant, Fire-backed, possessing spurs.