Tertiary. | PALMONTOLOGY OF VICTORIA. [ Echinodermata, 
Tarbellianus and allied forms, which I have cautiously ground 
down for the purpose of making a careful examination, and find 
they are as completely absent as in our present Gippsland species. 
The nearest analogue for our fossil is, I think, the recent Ameri- 
can (Florida and West Indies) and West African Clypeaster subde- 
pressus, which is, however, clearly distinguished by its longer 
anterior petal, and it also has the ambulacral pores beyond the 
petals well marked. The walls of the testa vary in thickness very 
much, but are, as far as I have seen, always single. 
Very common in Miocene Tertiary strata of Bairnsdale and other 
localities in Gippsland ; rarer and of smaller size in the Miocene 
strata of Corio Bay ; rare and small in the Miocene beds of Muddy 
Creek, near Grangeburn, 5 miles from Hamilton ; rare in Miocene 
Tertiary limestone at the locality marked FSM ; rare in the Lower 
Pliocene beds of Mordialloc. 
+ 
EXPLANATION OF FIGURES. 
Plate LIX.—Fig. 1, average specimen, natural size, viewed from above. Fig. la, same 
specimen viewed in profile. Fig. 15, same specimen viewed from below, showing the flat under 
side, small mouth, and strong ambulacral grooves. Fig. 1e, tubercles and granules, magnified. 
Fig. 1d, portion of ambulacral petal, magnified, showing half of the interporiferous portions and 
more numerous poriferous plates of one side of petal, magnified. 
Freperick McCoy. 
[ 35 J 
