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Show 1866.] DR. G. HARTLAUB ON A N E W CRATEROPUS. 435 narrow as in Dasyurus ; the first pair directed forwards, and slightly longer than the others. Premolars three in the upper jaw, the middle one largest, the first somewhat smaller, and the third and last very diminutive and tubercular. Molars of the usual triangular form, with rather blunt tubercles, increasing in size from the first to the third, the fourth being narrow and transverse. The lower jaw is short and strong, and the articulating condyle placed still higher comparatively than in any other species of this group. The incisors are three in number, the first pair being the largest. Canines smaller than those of the upper jaw, but sharp and pointed, without the broad base common to other small Dasyures. Of premolars only two are found in the lower jaw, the second larger than the third. There are four molars, the first and last being the smallest, the two middle ones of about equal size; on the first the anterior tubercle is scarcely indicated, showing, with the absent third premolar, a close approach to the genus Dasyurus. Tail thick, compressed, with a crest of black hair upon the apical half, similar to the tail of Chce-ropus. 1. CILETOCERCUS CRISTICAUDA, sp. nov. (PI. XXXVI.) General structure similar to that of Phascogale calura; limbs strong, furnished with long claws; five toes to the fore and hind feet, the inner toe of the latter a short nailless thumb ; the hair upon the fore feet is very long and shaggy. General colour a leaden grey at the base of fur, tipped with sandy and rufous. Tail: basal portion reddish, darker towards the tip. Total length 8 inches, tail 3\, head to base of ear 1, tarsi and toes \\. Hab. South Australia, probably the neighbourhood of Lake Alexandria. % The Australian Museum received a specimen of this animal, which is not in very good condition, from Fr. G. Waterhouse, Esq., of the Institute Museum, Adelaide, a gentleman who has done much to investigate the fauna of South Australia. 5. On a New Species of the Genus Crateropus, Sw. By Dr. G. HARTLAUB, F.M.Z.S. (Plate XXXVII.) CRATEROPUS MELANOPS, sp. nov. Dorso et alis obsolete fuscis, cauda intensius fusca, sub certa luce quasi fasciolata ; interscapulio colloque postico nonnihil pal-lescentibus ; pileo conspicue cinerascente, plumularum apicibus albicantibus; mento summo nigro; gutture, capitis lateribus striolaque supraciliari carrulescenti-canis; macula inter rostrum et oculum subquadrata holosericeo-nigra ; pectoris plumis pallide brunneis, pallidius marginatis; abdomine subflavescente, |