125 
I. PALZ ONTOLOGICAL SUMMARY. 
ALDINGA AND ADELAIDE (EOCENE). 
No. of Species. No. of Restricted Species. 
Pisces , 2 0) 
Cephalopoda = 2 0 
Gastropoda ve a 182 126 
Scaphopoda ; | 3 1 
Pteropoda ae oe 1 1 
Lamellibranchiata Sao) 77 35 
Palliobranchiata ... oe 25 7 
Polyzoa ... me a 47 16 
Echinodermata... atl 22 7 
Zoantharia oe As 14 9 
Totaly. a 310 202 
With this total of 375 species, 184 genera are represented, being an 
average of little more than two species to each genus, which is a high pro- 
portion of diversity. 
Though only two genera are peculiar, viz, one bivalve (Limarca), and 
one coral (Bistylia), yet the stratigraphical distribution of several genera is 
of a high antiquity :—Plagiarca, Plesiotriton, Clavilithes, Conorbis, Mesalia, 
and Ampullina among Mollusca; Paradoxechinus, Holaster, Cardiaster, 
and Hemiaster among Echinodermata ; Notocyathus, Trematotrochus, Conos- 
milia, Cyathosmilia, and Graphularia among Zoantharia. 
Of all the Australian sections they are the richest in in Palliobranchs and 
Kehinoids. 
The living species of Mollusca (except Polyzoa) are Saxivava australis 
and Rhynconella squamosa, or two in a total of 290, which equals ‘69 per 
cent. 
The percentage of restricted species is 54, whilst a considerable number 
of the extra-limital species are in common, either separately or collectively, 
with Cape Otway and Spring Creek. 
Il, LIST OF EOCENE FOSSILS. 
ALDINGA AND ADELAIDE. 
(Index numbers to localities :—1, Cape Otway; 2, Table Cape ; 3, Spring 
Creek; 4, Geelong; 5, Birregurra; 6, Camperdown ; 7, Gellibrand ; 8, 
Muddy Creek; 9, Murray River; 10, Mornington; 11, Bairnsdale ; 12, 
Mount Gambier. | 
GASTROPODA. 
Typhis tripterus, T’afe ... Be, ern EEN Te avi cots Mh ee og 
So ReUEADIV us. 2 Ole, W.8pc -.- =< =Waaw sa, aaa onzeiper Lo 
Murex calvus, Tate as - - : : 
‘* manubriatus, Tate Poteet ee NY ET thy ee Syn mas 
“* biirens, Tate... ue @ Seow -weenricetia = 22-0. > 
‘*  Adelaidensis, Tate en eS Soe Le ty ty Pt eee 
‘* tenuicornis, Tate ey ere ae Se ih ae ee 
‘* sublevis, Tate ... Fae iw are 
‘¢ asperulus, ? Tate See aly Shee 
‘¢ prionotus, Tate... Suen ee Ne 
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