671 
Genus-PSEUDOGHIBUS, Ogilhy, 1836. . 
(Proc. Zool. Soc., 1836, p. 26.) 
PSEUDOCHIEUS ? NOTA33ILIS, De Vis. 
Pseudochirus notahilis, De Vis, Proc. K. Soc. Queensland, 1889, vi., Pts. 2 and 3, p. 113, t. 5, lower left- 
hand 6g. 
Obs. A maxillary with the premolar (pm. 4) and three Kuccei ding molars is 
referred by Mr. De Vis provisionally to Pseudochirus as the most likely amonast living 
genera to have been transmitted through it, but at the same time a possible affinity with 
Cuscus on the one hand and even Phascolarctos on the other is not to be alfogether 
ignored.” P. nofabilis is believed to have been as large as a Koala, and would conse- 
quently weigh about twenty pounds. 
Loc. and Horizon. Darling Downs (C. W. De Fis— Colin. Queensland Mus.)— 
Pluviatile deposits. 
Genus— KOALHMUS, Be Vis, 1889. 
(Proc. R. Soc. Queensland, vi., Pts. 2 and 3, p. 106.) 
Koalemvs insens, De Vis. 
Koalemus ingens^ DeVis, Proc. R. Soc. Queensland, 1889, vi., Pts. 2 and 3, p. 106, t. 5, up. right-hand fig. 
Obs. This genus and species are founded on the distal end of a right fibula 
and there is also provisionally referred to it a premaxillary with its palatal process of 
an animal allied to, although not congeneric with Phascolarctos, the Nativm-bear. 
The fossil bone is said to have a strong general resemblance in form and 
arrangement of its parts with the corresponding one in the living animal, but the 
following differences given in the Author’s words may be taken as distinctive : ‘ The 
anterior segment of the epectosphere jjroduced but very slightly at its anterior angle, 
forming a roughened triangular plane, impinging by the posterior angle upon the side 
of the posterior segment. The groove segmenting the epectosphere is broadly concave 
at the base. The shaft subquadrate, flattened on the exterior and anterior sides, which 
meet on a strong angular ridge continued distal to the anterior segment. Expansion 
of the shaft, proximal of the epiphysis, very moderate.” 
Mr. De Vis adds that taking the weight of an adult Koala or Kative-bear at 
twenty pounds, that of the extinct form would in comparison “ be estimated at five 
hundred-weight or more.” 
Loc. and Horizon. Darling Downs (G. TV. De Vis — Colin. Queensland Mus.) 
Eluviatile deposits. 
Genus— ABGHIZONUBUS, De Vis, 1889. 
(Proc. R. Soc. Queensland, vi., Pts. 2 and 3, p. 109.) 
Archizonttups sbcprps, Pe Vis. 
Archizonurus securus, De Vis, Proc. R. Soc. Queensland, 1889, vi., Pts. 2 and 3, p. 109, t. 5, up. left 
hand fig. 
Obs. An extinct true Phalanger founded on the distal third of a shoulder blade 
“distinguished by a large dilated and incrassatod coracoid, which firmly denies all 
relationship with families other than the Phalangistidse. In form this bone is hardly 
to be distinguished from the corresponding one intheToolah, Phalangista Archeri, but it 
differs from this and all other Phalangers “ in not having its rostral edges brought 
together and produced at the point into a bicipital tubercle ; the external edge is, on 
the contrary, reflected upon the ectal surface of the bone. 
Loc. and Horizon. Darling Downs (G. W. De Ffs-Colln. Queensland Mus.)— 
Fluviatile deposits. 
