"On the prehensile power of the tail Mr. Ogilby particularly insists as on n faculty possessed by the greater number of the Pcdimano, maul as ono which is in truth almost confined to then; only three known genera belonging to other groups, Sprflu-rus, yronecophaga, and arcoleptea, being endowed with it. Ile remarks on this faculty as on one of considerable importance, affording as it does in some degree a conponsation for the absence of opposeable thumbs on the anterior limbs. Combined with the prehensile tail, in every known instance, whether among the Pediatana or in other groups, is a slowness and apparent milieus/kw of motion, not observable in any-of the Quadrumana, except in the Xycliccti. In none of the true Quadrumana in the tail prehensile.
"Another evidence of the distinctness, as two groups, of the Quadrumana and the Pcdimana is furnished by their geographical distribution. The Quadrumana are strictly confined to the limits of the Old World; the Pedimana almost as exclusively to the New World, for Mr. Ogilby con/tillers the continent of Australia to belong more properly to America than to Asia. The very few apparent exceptions that occur to this latter position nro in the presence of some species of Ph clangers in the long chain of islands that connect the south-eastern shores of Asia with the north-eastern coast of Australia; Wanda which may in truth be fairly regarded an belonging partly to the one and partly to the other, and the productions of which might consequently he expected to partake of the character of both.
"Mr. Ogilby subsequently adverts to another Pediment-inn animal, the Aye-Aye of Madagascar, constituting the gamut Cheiromps; respecting the affinities of which he speaks with hesitation, because, having never land an opportunity of examining the animal itself, he in acquainted with its characters only at second hand. lie is however disposed to regard it as representing a third group among the Pedimatur, to be placed In n elation intermediate between the :11olikeya of the Now World and the Oielelphidte. With the latter he would, in fact, be disposed to reolociato it, were it not destitute of the marsupial character which belongs to all the other aninutla comprised In that group. In some of the Ihdelphithr, the Phalangens and Petauristn especially, there is a marked approximation to that rodent form of incisor teeth which obtitinn in Cheircnys, ands which luta hitherto been regarded as especially nttaching to it an abnormal character.
"Man In the only other mime' furnished with linnas, and hovrover distinct he may be as regards his moral and intellectual powers, he must, zoologically, be considered on physical grounds. By the atructural characters he qsrmmen associated with all dose of which mention has previously been made in Mr. Ogilby's oominunication although he unquestionably constitutes among them a peculiar group, sensibly exalted above the rest, as well as above all other Mammals."