334 DIDELPHTI])*. 



^ J I Ad. 5 & yg. al. I » /QQ Chirimoto, Warsaw Museum [P.]. 



' * I Skull of a. ( N. Peru 



(J. Stohmann), 



c. Ad. St. Bahia. Zool. Soc. 



d. Ad. sk., c? . Brazil, Lord Stuart de Rothe- 



say [P.]. 

 ^ f I Ad. ska. / o Brazil. Purchased. 



*'-^- 1 Skull of e.f ¥■ 



J Ad. St. I , Brazil. Purchased. 



^- jSkull. \^- 



4. Didelphys crassicaudata. 



Micouifi & queue grosse, Azara, Quadr. Parag. i. p. 284 (1801). 

 Didelphys crassicaudata, Desm. N'. Diet. d'S. JV. (1) xxiv. Tabl. 

 ■p. 19 (1804) ; id. op. cit. (2) ix. p. 425 (1817) ; id. Mamm. i. 



p. 257 (1820) ; ScUnz, Ouv. Thien: i. p. 887 (1821) ; id. Diet. Sci. 



Nat. xlvii. p. 394 (1827) ; Gray, Oriff. Cuv. An. K. v. p. 189 



(1827); Less. Man. Mamm. p. 213 (1827); J. B. Fisch. Syn. 



Mamm. p. 267 (1829); Rmgg. Saug. Parag. p. 226 (1830); Waterh. 



Cat. Mamm. Mus. Z. S. p. 64 (1838) ; id. Zool Voy. Beagle, Mamm. 



p. 94, pi. XXX. (animal) (1839) ; id. Jard. Nat. Libr., Mamm. xi. 



p. 100 (1841) ; Wagn. Schr. Saug. Supp. iii. p. 46 (1843) ; Schinz, 



Syn. Mamm,. i. p. 506 (1844) ; Waterh. N. H. Mamm. i. p. 497 



(1846) ; Cahanis, Schomb. Peis. Brit. Cfuiana, iii. p. 777 (1848) ; 



Burm. Erlaut. Faun. Bras. p. 88 (1856); GVe6. Siiug. p. 718 



(1859) ; id. Zeitschr. gesammt. Nat. xxvii. p. 396 (1866) ; Durnr- 



ford, P. Z. S. 1877, p. 32 : Lyd. Cat. Foss. Mamm. B. M. v. p. 280 



(1887). 

 Didelphis crassicaudis, III. Ahh. Ah. Berl. 1811, p. 107 (1816). 

 Didelphismacroura, Bl. Ahh. Ak. Berl. 1811, p. 107 (1816) (?) ; Des- 



moul. Diet. Class. d'H. N. v. p. 492 (1824). 

 Peramys crassicaudata. Less. N. Tabl, B. A., Mamm. p. 187 (1842). 

 Didelpnis mustelina, Geoff, ajmd Waterh. N. H. Mamm. i. p. 497 



(1846). 

 Micoureus crassicaudatus, Gem. S. N. Mamm. ii. p. 287 (1855). 

 , Philander crassicaudatus, Gerrard, Cat. Bones Mamm. B. M. p. 139 



(1862). 

 Metachirus crassicaudatus. Sens. Ahh. Ak. Berl. 1872, p. 121 ; Burm. 



Bepubl. Argent, iii. p. 190 (1879). 

 Didelphys turneri, Gunth. Ann. Mag. N. H. (5) iv. p. 108 (1879). 



Thick-taixeb Opossttm. 



Size as in D. opossum, ; form long, low, and singularly weasel-like. 

 General appearance very like that of Putorms sihirimis. Fur 

 straight, thick and soft. General colour a rich soft yellow, greyer 

 down the centre of the back, brighter on the sides and belly. Pace 

 like back, but some of the hairs pencilled with brown ; no eye-spots 

 or other prominent markings. Ehinarium as in D. nudicaudata, 

 but its upper edge with a rounded projection backwards, sharply 

 defined from the hairy part of the face. Ears (PI. XXVI. fig. 4) 

 very short and rounded, hardly projecting above the general level of 

 the fur, laid forward they reach barely one half of the distance 

 towards the eye ; their inner edges with a long conical basal pro- 



