MAMMALIA MARSUPIAL! \ . 35 



MARSUPIALI A. 



RAPACIA. Lund lias proposed some changes in the defi- 

 nition of the Brazilian species of Didelphys. (Det. K. Dauske. 

 Videiisk. Selsk. Naturv. Afli. ix, p. 135.) 



After receiving Temminck's Monograph, he is of opinion that the seven 

 living Brazilian species are different from those described therein. That 

 which he previously regarded as D. nmrina\Q now terms D. elegans ; in liko 

 manner he is more and more convinced that the species determined by him 

 to be D. tricolor differs from that species, and more nearly approaches 

 D. Irachyura, Pallas, under which name he now admits it, from which, how- 

 ever, it appears to differ specifically in the sides being, not ferrugineous but 

 pale ochreous. More accurate descriptions must be awaited before these 

 two species can be brought into comparison with the new species instituted 

 by Natterer and myself. 



With respect to the extinct genus belonging to this order, to which he 

 formerly gave the name Tkj/lacotheriiim, Lund now wholly retracts what he 

 said, expecting that new discoveries will throw more light on the subject. 



Among animals from New Granada, lioulin has declared one to be the 

 true Didelphys brachyura of Pallas. (Instit. p. 53.) 



Dasyurus liallucatus has been described by Gould as a new species. (Ann. 

 Nat. Hist, xi, p. 232.) 



" D. supra flavescenti-fuscus, nigro-peuicillatus, maculis albis ornatus ; 

 corpore infra albo ; cauda immaculata ad apicem nigra." Body ]1", tail 9". 

 From Port Essiugton. Smaller than D. Gcoffroyi, and the thumb more 

 developed. 



Upon the most cogent grounds Owen has shown, in opposition to Blain- 

 ville, that Thi/lacothemcrn and Pliascolotlierium belong not merely to the 

 Mammalia, but specially also to the Marsupialia. The paper in the Pro- 

 ceedings of the Geological Society, of which an abstract was formerly inserted 

 in these Archives, has now appeared more at length in the Transactions of 

 the Geol. Society of London (vi, 1, Lond. 1841, p. 47, with pi. 5 and 6). 

 The description of a new species, T. Broderipii, is added. 



From Port Adelaide comes the species newly described 

 by Water-house, of Phascologale albipes. (Ann. Nat. Hist, 

 xi, p. 307.) 



" Ph. pilis brevibus et pennollibus; corpore supra nigro et flavesecnti- 

 irrorato, infra albo ; pcdibus albis ; cauda longa, supra fuscescentc;, infra 



