. Cassell's natural history. Les animaux ; le comportement animal. Ainsi, le processus post-orljitai ar dents sont quatre ui nombre de chaque côté, au-dessus et au-dessous, près de la même taille, et non tuberculeuses, mais avec une surface Hal, traversée par le trans- vei-se lopps de l'émail, et le palais est contractée dans irout et entaille profonde derrière. Dans le squelette nous tiud seize paii's de nervures, alors que dans les écureuils il y a seulement douze ou treize du PAII ; et l'uiternal anatomie, d'abord décrites par M. Alston, très peculiai est'. La volée- nig- membrane est qiite comme en grande partie développés comme dans le grand polatouche, et

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. Cassell's natural history. Animals; Animal behavior. Thus, the post-orljitai processes ar teeth are four iu number on each side, above and below, nearly equal in size, and not tubercular, but with a Hal surface, crossed by trans- vei-se lopps of enamel; and the palate is contracted in irout and deeply notched behind. In the skeleton we tiud sixteen paii's of ribs, whereas in the Squirrels there are only twelve or thirteen paii'S; and the uiternal anatomy, first de- scribed by Mr. Alston, is ery peculiai'. The fly- nig- membrane is qiite as largely developed as in the Flying Squirrels, and IS in the same manner ex- tended from the wrists to the heels, and further sup- ported by cartUaginons spurs starting fi-om the liom the wrist itself, in the fuatLi extcusiiMi of the. fore limbs; but, whilst in the Fl>mg Squiriels this spui Anomalures it projects from the ell)ow, and thus pioduces brane. The ears are well developed, the eyes large, and the general aspect both of head and body com pletely squinel-lrke. Six species of this family have been described, all from the West Coast of Afi-ica. One of them occurs in the island of Fernando Po. The species figured (Anomalnrus/idgens) is from the Gaboon It is a handsome little creature, of a bright reddish coloni paler below, and haAdng a small white spot between the ear.s. Its length is fourteen inches, and its tail is seven inches long. In some of the other species the tail is as long as the body. Of the habits of these animals little is ])ositively known, but they are said to feed upon fruits They )irobably resemble the Flying Squirrels in then general mode of life. FA JULY III.—H.rLOD0XTin.E. -^ This is another small family, smaller even than molm; tfeth of the anomah-ke the preceding one, for it includes only a single known species, limited in its range to the we.stern coast of North America. This is the Sewellel, a little Eodent, first observed by the American travellers, Lewis and Clarke, in 1805 or 1806, descr

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