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Show 7-1. ZOOLOGY OF THE VOYAGE OF THE BEAGLE. This species is of a darker colour than the last, its ears are much larger and the tarsi are shorter. It has the same rabbit-like appearance. The molar teeth of the lower jaw are figured in Plate 33, fig. 4, a. "This mouse, when alive, from its very large eyes and ears, had a singular appearance, somewhat resembling that of a little rabbit. It frequents small thickets in the open grassy savannahs near Maldonado, and was caught with facility by means of traps baited with cheese. '-D. 3. REITHRODON CHINCHILLOIDES. PLATE XXVII. R. vel! ere longissimo et mollissimo; em-pore suprd et ad latm·a cine1·eo,flavescenti:fusco lavalo, subtus flavescenti·albo ; cmtda corpore breviore, suprd fnsca, subtz'ts alba : rtu.ribus pm·mtlis: tarsis mediocribzts. DE CRIPTION.-Ears small; tail shorter than the body; tarsus moderate; fur ·long and extremely soft. General hue of the upper parts of the head anrl body ashy-brown; the lower part of the cheeks and sides of the body are of a delicate yellow colour; the under parts of the head and body and the rump are cream colour. The ears are blackish ; -. the tail is tolerably well clothed with longish hairs, which are, however, not so thickly set as to hide the scales -on the upper side they are blackish brown ; on the sides and beneath they are white. The feet are white. All the fur is of a deep grny colour at the base; the hairs of the back are of a very pale yellow colour (almost white) near the tip, and brown at the tip; the longer hairs are black ut the apex. The incisors are yellow; the hairs of the moustaches are numerous and very long-some of them are whitish, and others are black at the root, and gray at the apex. L<'ngth from nose to root of tail of tail from nose to ear ln. Lines . 4· 2 Length of tar us (claws included) of car ln. Lines. Habitat, South shore of the Strait of Magellan, near the Eastern entrance. This little animal was preserved in spirit, and has since been mounted, it is " They are naked, but I suspect the hair has been rubbed oft'. |