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in length and thickness, the fifth being very short and thin. All 
the orders are wavy, and, with the exception of the highest, show 
several radiating rows of granules on their sides. 
The fossa is long, narrow, and abruptly descending. Most 
specimens have the wall of the corallum broken off level with the 
columella, which is formed by the fused ends of the principal 
septa ; but in more perfect examples the columella is either not 
visible or can be just seen deep down in the fossa. 
The coste -are subequal in size, closely-set, and correspond to 
the septa. Asa rule, they are almost concealed by the epitheca, 
but when this has been worn off by fossilization they are distinct 
on the sides of the corallum. In well-preserved examples the 
epitheca is dense, and shows chevron-marked ridges running 
parallel with the convex calicular margin. 
Height of corallum (figured example), 31 mm.; length of 
calice, 16 mm.; breadth of calice, 7 mm. 
Locality.—Abundant in the Miocene beds of the Gippsland 
Lakes area, Victoria. 
This coral is allied to # Victorieg, Duncan, but is more com- 
pressed and much larger. It has besides an extra cycle of septa. 
Flabellum fastigatum, spec. nov. PI. ii., figs. 2 a, b. 
The corallum is elliptico-conical in shape, and tapers regularly 
from the summit to a very small pedicel at the base. The angle 
subtended by the lateral borders of the corallum is about 30°, and 
that by the middle line of the faces about 18°. The calice is 
elliptical and deeply exvavated. The two axes of the ellipse are 
as 100 to 56. 
The septa are slender and straight ; they have dentated edges, 
and their sides are ornamented with rows of small rounded 
granules. They are in six systems, with four cycles. The two 
central systems only are complete, those at the ends wanting 
either a secondary or tertiary, and also one or more of the quater- 
nary septa. The primaries, secondaries, and tertiaries are well 
developed and equal; the quaternaries are nearly as long, but 
thinner and less prominent from the wall. The inner borders of 
the principal septa are perpendicular, and enclose a narrow, deep, 
and elongate fossa, at the bottom of which is the columella ; this 
is formed by the thickened and fused ends of the septa of all four 
orders. Only one of my examples shows a deep central fossula in 
the calice, the others, as is frequently the case with fossil 
Flabella, having the corallum broken off or worn to the level of 
the columella. The wall is thin towards the calicular margin, 
but becomes stout inferiorly. 
The principal coste are prominent on the surface of the 
corallum as medially furrowed and slightly raised ridges, which 
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