63 
The calice is circular and only slightly convex. The 
septa are stout, sub-equal, profusely granular, and, though 
now mostly flattened by wearing, were originally exsert. 
They are in six systems with four cycles, and are arranged 
in the usual deltoid combinations. There are pali before 
the principal orders, those before' the secondaries being the 
largest. The columella is fascicular and fused with the 
primary and secondary pali. 
Height of corallum, 25 mm.: diameter of base, 45 mm. 
There are three coralla of this size in my collection, and the 
rest are smaller. 
Locality, etc.—In Eocene strata at Shelford (amphi- 
theatre section), ten examples; and in the equivalent bed on 
the Murray River, near Morgan, one example. 
I have great pleasure in naming this species after Dr. Jos. 
C. Verco, whose extensive dredging operations in St. Vin- 
cent and Spencer Gulfs have so materially increased our 
knowledge of the marine fauna of South Australia. 
FAMILY OCULINIDZE. 
GENUS OCULINA. 
Oculina umbellata, spec. nov. Pl. xxv., fig. 3. 
The coralium is composite, compact, and umbel-shaped, 
with a flat upper surface and rapidly sloping sides. The 
base is stem-like, and now shows a fractured under surface 
without visible sign of adherence. Seven large calices are 
regularly arranged around the upper marign, with their out- 
lines showing also on the sides as mammillated projections. 
They are unequal in size, irregularly elliptical, and of mode- 
rate depth. The costz rise slightly above the margin of the 
calices, are continuous with the septa, equal, broad, granu- 
lose, and distinct on the upper surface, especially at the 
calicular margins. From these they recede in curved, tor- 
tuous lines, and gradually become less prominent; on the 
sides of the corallum the созбе are very faintly marked. 
. The calices are, unfortunately, broken down internally, as 
if they had been cleared of sediment with a sharp instru- 
ment, and their structure cannot therefore be fully deter- 
mined. There are numerous, close, granular septa, buf the 
number of systems and cycles is not now decipherable. Rem- 
nants of granular pali and of a nodular columella are still 
left in one or two calices. Judging from the well preserved 
state of the созбе, this unique specimen must have been ori- 
ginally in excellent order. 
At its summit the corallum is 35 mm. long and 30 mm. 
broad. The solid cænenchyma from the extremity of the 
base to the centre of the upper surface measures 21 mm. 
