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Hence it appears reasonable to extend this same view to all analogous cases with animals in a state of nature. Nevertheless I cannot persuade myself that it generally holds good, as in the case of the extraordinary development of hair on the throat and fore-legs of the male Ammotragus, or in that of the immense beard of the male Pithecia.
It exists also on the south side of the river, namely, on the banks of the Teffe, but there under a changed form, which differs a little from its type in colours. This form has been described by Dr. Gray as a distinct species, under the name of Pithecia albicans.
With Pithecia leucocephala the young likewise resemble the females, which are brownish-black above and light rusty-red beneath, the adult males being black. The ruff of hair round the face of Ateles marginatus is tinted yellow in the male and white in the female.
Pintail, drake, plumage of; pairing with a wild duck. Pintail Duck, pairing with a widgeon. Pipe-fish, filamentous; marsupial receptacles of the male. Pipits, moulting of the. Pipra, modified secondary wing-feathers of male. Pipra deliciosa. Pirates stridulus, stridulation of. Pitcairn island, half-breeds on. Pithecia leucocephala, sexual differences of colour in.
Flexor pollicis longus, similar variation of, in man. Flies, humming of. Flint tools. Flints, difficulty of chipping into form. Florida, Quiscalus major in. Florisuga mellivora. Flounder, coloration of the. Flower, W.H., on the abductor of the fifth metatarsal in apes; on the position of the Seals; on the Pithecia monachu; on the throat-pouch of the male bustard.
Birds and monkeys in this glorious forest were very abundant; the bear-like Pithecia hirsuta being the most remarkable of the monkeys, and the Umbrella Chatterer and Curl-crested Toucans amongst the most beautiful of the birds.
The Parauacu is also a very delicate animal, rarely living many weeks in captivity; but any one who succeeds in keeping it alive for a month or two, gains by it a most affectionate pet. One of the specimens of Pithecia albicans now in the British Museum was, when living, the property of a young Frenchman, a neighbour of mine at Ega.
Rengger, on the diseases of Cebus Azarae; on the diversity of the mental faculties of monkeys; on the Payaguas Indians; on the inferiority of Europeans to savages in their senses; revenge taken by monkeys; on maternal affection in a Cebus; on the reasoning powers of American monkeys; on the use of stones by monkeys for cracking hard nuts; on the sounds uttered by Cebus Azarae; on the signal-cries of monkeys; on the polygamous habits of Mycetes caraya; on the voice of the howling monkeys; on the odour of Cervus campestris; on the beards of Mycetes caraya and Pithecia Satanas; on the colours of Felis mitis; on the colours of Cervus paludosus; on sexual differences of colour in Mycetes; on the colour of the infant Guaranys; on the early maturity of the female of Cebus Azarae; on the beards of the Guaranys; on the emotional notes employed by monkeys; on American polygamous monkeys.
With mammals, when the sexes differ in colour, the male is often black or much darker than the female; and it depends merely on the form of inheritance whether this or any other tint is transmitted to both sexes or to one alone. The resemblance to a negro in miniature of Pithecia satanas with his jet black skin, white rolling eyeballs, and hair parted on the top of the head, is almost ludicrous.
Pithecia Satanas, beard of; resemblance of, to a negro. Pits, suborbital, of Ruminants. Pittidae, nidification of. Placentata. Plagiostomous fishes. Plain-wanderer, Australian. Planariae, bright colours of some. Plantain-eaters, colours and nidification of the; both sexes of, equally brilliant.
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