PRESIDENTS ADDRESS. 183 
living species, though none are living]. A general resem- 
blance seems to subsist between our Tertiary species and 
those of the European Miocene. . . . . the resem- 
blance is mimetic rather than actual . . if we 
select T'erebratula subcarnea and the Terebratulinas (ex- 
cepting 7. scoulari) we might equally well claim for 
our Australian Tertiary Palliobranch fauna a Cretaceous 
facies.” | However, the revision of the genera and great 
groups of the Brachiopoda by Hall and Clark has led to 
such radical changes in our -onceptions that, till our fossils 
have been re-examined in tke pene of their researches, any 
detailed discussion of the range of our Older Ter Bag genera 
elsewhere would be of but little real value. 
Mollusca.—Pilsbry clearly points out the position when 
he says (Pilsbry, 00, p. 499) in speaking of fossil Gastro- 
poda:—‘‘ The Eocene faunas of Europe, North America, 
Asia, and Northern Africa share a great many species in 
common, avd have numerous others which are vicarious. A 
very different aspect is presented by the Eocene fauna of 
Australia, New Zeaiand, and South America, where we find 
the evident forerunnersof forms now inhabiting the southern 
portion of the Atlantic and Pacific Oceans.” 
Tate (Tate, 88, p. 243) says—‘‘ Viewed as a whole, the 
Old Tertiary [z.e., ‘ Eocene * and ‘ Miocene ’} fauna is closely 
related generically to that existing in the same area.” Some 
typical genera are absent, while others are as well repre 
sented in the fossil as in the recent condition. Some again 
have a more tropical aspect. In some cases the genera, 
though living elsewhere, appear to be extinct in the Aus 
tralian region. Of the extinct forms, some, as might be 
expected, show relations to the fauna of the Northern 
Hemisphere, while others are peculiar to the Southern.” 
Genera illustrative of these points are given by Tate, and 
there is no necessity to quote them. Hedley records the 
fcilowing as common to the Eocene and Recent, Arcoperna, 
Sarepta, Kuphus, and Chileutomia, and Tate has made a 
few additions to his early list, such as Philobrya and others. 
These forms emphasise the Australian facies in early Ter- 
tiary times. 
Amongst Vertebrata the identifications rest mainly on 
the recognition of detached teeth, but there is one marked 
exception—Wynyardia bassiana, Spencer, from the marine 
beds of Table Cape. These beds were latterly held by Tate 
to be Oligocene, whereas Mr. Pritchard and myself believe 
them to be older than the Lower Muddy Creek series, which 
Tate considered Eocene. Wynyardia is a marsupial of 
