105 
Fifteen species are peculiar. These are indicated by a pre- 
fixed asterisk in the foregoing list. Of the twenty-five common 
to other localities and horizons, ten are EKocene, not passing into 
undoubted Miocene. Axincea convexa, Crassatella oblonga, 
and Pelicaria coronata are characteristic Miocene species, the 
first and third passing to Older Pliocene. Lampusia armata and 
Natica gibbosa are common shells in O. Pliocene. Cucullea 
Corioensis is equally common at Eocene and Miocene horizons, 
and passes to Older Pliocene. Ancilla hebera is Eocene and 
Pliocene. Mytilicardia compta, Turritella tristira, and 
T. acricula are Eocene and Miocene, the first uncommon in 
both. Meretrix submultistriata is a somewhat characteristic 
Miocene species, but is not known at undoubted Eocene horizons. 
Bathytoma Pritchardi, Trigonia acuticostata, and Cardita calva 
are Miocene only. Trigonia intersitans was previously only 
known from Maude in the Moorabool Valley. 
It is noteworthy that Crassatella oblonga, Cardita calva, 
Trigonia acuticostata, Meretrix submultistriata, and Pelicaria 
coronata, which are characteristically Miocene, have been quoted 
as Eocene from their occurrence at Beaumaris (Cheltenham), 
Spring Creek, or Table Cape; and, also, that others having a 
wide geographic range and passing up from the Older to Newer 
Tertiary are met with at one or more of the three named 
localities. 
The collection of Murray Desert fossils includes several Eocene 
species which are not known at higher levels, and a fair number 
of Miocene species which do not occur at lower horizons, except 
the horizon represented by localities 10, 11, and 12, but some of 
which are alsc Pliocene shells. As a whole, the collection has 
considerable affinity with the faunas at Beaumaris and Table 
Cape, which with that of Spring Creek indicate a higher horizon 
than that of the typical Eocene localities. The Beaumaris fauna 
is not typical Miocene, despite Messrs. Hall & Pritchard’s (*) 
endeavors to prove it so; I have knowledge of a much fuller 
record of species than they have given, and an analysis of 
the evidences they afford may eventually be submitted ; however, 
I have always admitted that the fauna is a passage one from 
Eocene to Miocene. At present the stratigraphical relations of 
the beds yielding this intermediate fauna at these localities to 
the Eocene are not yet defined, though there is good ground for 
the opinion that the Beaumaris beds are superior to the Eocene. 
In the case of the two Murray Desert localities, the position is 
paradoxical ; the fossils indicate a younger age than the Hocene 
deposits which prevail along the line of the River Murray from 
*Trans. R. Soc., Vict., IX. (N.S.), 1896. 
