124 
SoutH SipE, ALDINGA Bay. 
Front of ‘red loam” cliffs faced by a mural line of calcareous 
rock, largely made up of echinodermal and polyzoal debris ; the 
upper part rather harder and weathering ruggedly and fantas- 
tically ; the lower part hollowed out into caves and tunnelled 
through to the “ red-loam” at the back. Height of wall about 
20 ft. Dip apparently west; the whole seems as it it had been 
thrust forward by the weight of the ‘red loam.” 
The glauconite limestone is rich in palhobranchs and echino- 
derms, some of the former and most of the latter being confined 
to it. 
The lower portions of the Turritella-banks of Blanche Point 
contain very few species, though densely packed with Zwrritella 
Aldinge, and with Entalis subfissura common. Towards their 
upper part, species occur in considerable numbers, and individuals 
abound ; among the commoner ones may be mentioned :— 
Peristernia Aldingensis, Murex sublevis, Triton oligostirus, Voluta 
pagodoides, Ancillaria ligata, various species of Plewrotoma, 
Erato pyrulata, Trivia avellanoides, Natica Aldingensis, Amussium 
Zitteli, Leda Huttoni, L. planiuscula, L. apiculata, L. leptorhyncha, 
Arca equidens, Cardita latissima, Meretrix tenwis, Corbula 
pyxidata, Myodora lamellata, Terebratulina triangularis, Trocho- 
cyathus heterocostatus, Notocyathus Tateanus, Bistylia adherens, 
and other corals. 
The marls which succeed are sparsely fossiliferous, and the 
fossils are not always obtainable in good condition, but the best 
time for collecting is in fine weather, just after a copious rain. 
For the most part, the species have ascended from below ; but a 
species of Potamides may only be obtained here. Continuing 
south to the cliff section No. 4, the marls pass to the condition 
of a black clay, containing many of the species belonging to the 
Blanche Point marls, of which Zimopsis insolita is profusely 
abundant, and of large size; hence the bed has been called the 
‘¢ Limopsis-clay.” 
The calciferous sand-rock so extensively developed on the south 
side of Port Willunga Jetty does not contain a great variety of 
fossils, though individuals are fairly abundant ; the chief species, 
except among the Polyzoa, are:—/Pecten EKyrei, Waldheimia 
furcata, W. Garibaldiana, W. sufflata, Scalaria Marie, Eupatagus 
decipiens, Maretia anomala, Antedon sp., Graphularia senescens. 
In the following summary and table of species belonging to the 
Adelaide and Aldinga sections, account is taken of the Eocene 
strata only. 
