300 LLOYD’S NATURAL HISTORY. 
the body for about its basal inch, this fur extending about a 
quarter of an inch further below than above ; remainder of tail 
practically naked, but the lines betwe/n the scales clothed 
with microscopic hairs ; in colour, uniformly brown above and 
slightly paler beneath, whereas in D. phi/ander the entire tip is 
whitish. Teats seven. (Zhomas). 
Distribution.—Trinidad. 
XI@. SHREW-LIKE OPOSSUM. DIDELPHYS SORICINA. 
Didelphys soricina, Philippi, Arch. Naturgesch., 1894, vol. i., 
Pp: 36. 
Characters——Said to resemble “ D. parva” (? = pusilla) in 
general characters, but altogether blackish above and whitish 
beneath. Ears large; tail somewhat longer than head and 
body, black above, white beneath, clothed above at the base 
with long hair, then sparsely haired, below, with the hairs pos- 
terior to the naked portion longer and more numerous. 
Distribution —S. Chill. 
XII. GREY OPOSSUM. DIDELPHYS MARMOTA., 
Didelphys marmota, Oken. Lehrb. Nat., vol. iii., p. 1140 (1816). 
Didelphys grisea, Desmarest, Dict. Sci. Nat., vol. xlvii., p. 393 
(1827); supra, p. 212. 
Micoureus griseus, Thomas, Ann. Mag. Nat. Hist., ser. 6, vol. 
xiv., p. 184 (1894). 
Marmosa marmota, Thomas, of. cit., vol. xviil., p. 314 (1896). 
In the text the Brazilian 2. zzcana was identified, on the 
authority of Thomas, with this species, which is confined to 
Paraguay and Corrientes. It is still known only by very few 
examples, and appears to be more nearly allied to the Chilian 
D. elegans than to D, jucana, although externally the two are 
very different 
