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Show 6fi ZOOLOGY OF TilE VOYAGE OF THE BEAGLE. In. Lines. ln. Lines. Length from nose to root of t:til of tail 0 4 9 3~ Length of tarsus (claws included) of ear 1 0 from nose to car Habitat, Chatham Island, Galapagos Archipelago, Pacific Ocean, ( October. ) This species is less than Mus Rattus. The upper parts of the body have a slightly variegated appearance. The skull of Mus Galapagoensis (Plate 33, fig. 8, a,) is rather smaller than that of JJI. Rattus, the nasal portion is proportionately longer, the cranial shorter, and the interparietal bone is smaller, especially in antero-posterior extent; its length is 15 lines, and its breadth is 8-fr lines. The lower jaw is figured in Plate 34, fig. 14, a. Fig. 8, b, of Plate 33, represents the molars of the upper jaw, and :fig. 8, c, those of the lower jaw. " This mouse or rat is abundant in Chatham Island, one of the Galapagos Archipelago. I could not find it on any other island of the group. It frequents the bushes, which sparingly cover the rugged streams of basaltic lava, near the coast, where there is no fresh water, and where the land is extremely sterile."- D. 27. Mus FusciPES. PLATE XXV. !JI. supra fusco-nigrescens, subtus griseus; pedibus fuscis ; auribus mediocrilms, cauda, qtwad longitudinem, cap1tt corpusque Jere r.equante: vellere longissimo, molli. DESCRIPTION.-Form stout; ears moderate; tail equal to the body in length; tarsi moderate; fur very long. General tint of the upper part and sides of the head and body blackish brown with an admixture of gray ; of tile under parts grayish white; feet brown, the hairs grayish at the tip: tail black and but sparingly clothed with short bristly hairs : ears rather sparingly clothed with hairs, which are for the most part of a brownish gray colour. The ordinary fur of the back is about i of an inch in length and very soft-of a deep gray colour, broauly annulated with brownish yellow near the tip and blackish at the tip: the longer hairs which are black, measure upwards of 1! inches in length. The upper incisors are of an orange colour and the lower are black. Length from nose to root of tail of tail from nose to car ln. Lines. 4 I Length of car of tarsus (claws included) Habitat, Australia, King George's Sound, (lJla1·clt.) In. Lines. |