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Show 54 ZOOLOGY OF TilE VOYAGE OF TilE BEAGLE. species extends slightly on the sides of the body, and the lower portion of the cheeks. "This species was caught on the mountains, thickly covered with peat, of Hardy Peninsula, which forms the extreme southern point of Tierra del Fuego."-D. 17. Mus CANESCENS. Mus canescens, Waterlt., Proceedings of the Zoological Society of London (or February, 1837, p. 17. M. supra canescens, subtus albus; oculis jlavido cinctis ; am·ibus par·vulis, pilis pallide jlavis et plumbeis obsitis; rnystacibus mediocribus, canis, ad basin nigricantibus; caudlt. vix corpore brevim·e, s1tp1·a jusco-11igrd, subtus so1·dide alba ; pedibus anticis tar sis que jlavescentibus. DEscRIPTION .-Fur moderately long and loose; ears small; tail nearly equal to the body in length: general colour gray, with a wash of very pale yellow; chin, throat, and under parts of the body, white. Tail tolerably well clothed with hairs, those on the upper surface brown, and those on the under, whitish; on the sides are some yellowish hairs. Ears with yellow hairs on the inner side; tarsi pale yellow, toes white; muzzle and around the eye yellowish. Length from nose to root of tail of tail from nose to car In. Lines. 6'* Length of tarsus (claws included) of car Habitat, Santa Cruz and Port Desire, (December.) In. Lines. 0 0 ~ 0 4 ''Very common in long dry grass in the valleys of Port Desire."-D. The skull is figured in Plate 33, fig. 5, c. Fig. 5, a. represents the molars of the upper jaw; fig. 5, b. those of the under jaw, and fig. 5, d. represents the posterior molar of the under jaw when more worn. It was with some hesitation that I described this as a distinct species in the Society's Proceedings. I have now :re-examined the specimens, and still am " The dimensions given in the Proceedings of the Zoological Society were taken from a younger specimen ~han those hero described, and there is an error in the length of tho ta.il there given, which should be 1-10 mstead of 2-10. |