《爱与罪的深渊》作者:久天

《 《爱与罪的深渊》作者:久天》

To return, however, to our Monkeys; to which, be it observed, we do not pretend to assign this as a definite position. They form by far the largest portion of the Quadrumana; all the other animals of that order being comprehended, or rather confounded, in a distinct family, under the name of Lemurs, from the rightful owners of which appellation many of them differ most essentially. In addition to the hands on the posterior as well as[139] anterior members, with long and flexible fingers and opposable thumbs, which constitute the primary characters of the order, the Monkey tribe in general is distinguished by the following peculiarities. Their incisor teeth are invariably four in each jaw, and their molars, like those of man, are flat and surmounted by blunted tubercles. The latter are five in number on each side of either jaw in all the Monkeys of the Old Continent, and in one very distinct tribe belonging to the New; but most of the American species are furnished with a sixth. Their canines vary considerably

These characters are derived, first, from their completely[117] plantigrade walk, the whole sole being at all times closely applied to the surface on which they tread; secondly, from their claws, of which they have five on each foot; thirdly, from the extreme shortness of their tail; and lastly, from the form and arrangement of their teeth. These consist of the usual number of incisors and canines, the latter being in general very robust, and of a series of molars, which, when complete, amount to six on each side in each jaw; the posterior three having flat and expanded surfaces surmounted by broad and blunted tubercles, and lying closely in contact with each other. Between them and the canines exists a considerable space, which is or should be occupied by three smaller and obtusely pointed teeth; but this number is seldom found entire, one or more of them being generally absent, and the series being thus rendered incomplete.

Linn?us united under the common title of Pelicans, the Cormorants, the Boobies, and several other birds, which differ from the typical species of the genus by many important characters, the chief point of agreement between them consisting in the form and extent of the membrane which unites the toes. The Linnean group has subsequently been raised to the rank of a family, and its component parts form several distinct genera, that which comprehends the true Pelicans, the genus Onocrotalus of Brisson, being characterized as follows. Their bill is of very great length, straight, broad, flattened above, and terminated by a slight hook; the lower mandible consists of two lateral branches, united at the point, and having interposed between them a membranous pouch capable of very great dilatation; their four toes are all enveloped to the very apex in the common membrane; their legs are short, strong, and maintain the body in a state of equilibrium, their lower part being entirely destitute of feathers.