towards the rump they are of a yellowish brown colour. The hairs of the tail are brown, black at the apex, and annulated with white near the apex; on the apical portion the hairs are black, and brown at the base. The fore legs are of a brown colour externally, internally they are of a brownish fulvous hue; such is also the colour of the feet. The fore part of the posterior legs is whitish, and there is a large blackish patch on the outer side, and extending around the posterior part, above the heel. In. Lines. Length from nose to root of tail 24 0 to base of ear 0 4¾ of tail (hair included) 10 0 of ear 2 3½ Height of body at the shoulders 10 6 Habitat, Chiloe. (_December._) “I killed this animal on the sea-beach, at the southern point of the island; it is considered extremely rare in the northern and inhabited districts. Molina mentions this fox, which he falsely considered as the _C. lagopus_, under the name of the _Payne Gurú_, and he adds, that in the Archipelago of Chiloe, it is found of a black colour. From this circumstance I am induced to believe that the species is confined to these islands.”—D. 4. CANIS AZARÆ. PLATE VII. Canis Azaræ, _Pr. Maximilian_, Beiträge zur Naturgeschichte Braziliens, vol. ii. p. 338. Agouarachay, _Azara_, Essais sur l’histoire naturelle des Quadrupèdes de la Province du Paraguay, tom. i. p. 317. _C. suprà albo nigroque variegatus; lateribus cinerescentibus; capite, auribus externè, artubusque, cinereo-cinnamominis; mento nigro; tibiis externis ad basin nigro lavatis; caudâ albescente, suprà nigro variegatâ, ad apicem nigrâ; spatio pone angulos oris, gutture, corporeque subtùs albescentibus; fasciis duabus griscescentibus in pectore plus minusve distinctis._ DESCRIPTION.—Compared with the common fox (_Canis Vulpes_, Auct.), the present animal is rather smaller, and of a more slender form. Its limbs are a little longer in proportion; the ears are not so broad. The tail is not quite so bushy, neither is it so long; the fur is much longer, and of a harsher nature.