DESCRIPTIONS OF NEw SPECIES OF CORALS FROM 
THE AUSTRALIAN TERTIARIES. 
By J. Dennant, F.G.S., Hon, Fellow. 
rAnnT “T. 
WITH, PLATES I1.,, TLE. 
[Read June 6, 1899. ] 
It will, I think, be ultimately found that the Australian 
Tertiaries are specially rich in corals. So far nearly 60 species . 
have been described, almost solely by Professor M. Duncan and 
the Rev. J. T. Woods, but the unnamed ones in collectors’ hands 
are still numerous. 
In addition to my own gatherings, the material available in- 
cludes contributions from Professor Tate and Mr. J. Mulder, who 
have generously allowed me to select what I chose from their 
cabinets. 
A revision of the forms described by previous authors is also 
desirable, and will be undertaken when further examples of the 
various genera represented have been discussed. 
In the present paper I deal with seven species, which are 
included under five genera and two families. 
FAMILY TURBINOLID:. 
GENUS FLABELLUM. 
Flabellum Gippslandiecum, spec. nov. PI. ii., figs. 1 a, b. 
The corallum is compact in substance, of varying height, some- 
times tall in relation to its breadth, straight, much compressed, 
and wedge-shaped. The sides are rounded and slightly inclined 
to the base, the angle subtended being about 10°. The anterior 
and posterior surfaces are flattened, and also inclined to each 
other at a similar angle. The base is crescent-shaped and much 
eroded; not unusually the horns of the crescent are slightly 
prolonged outward. 
The calice is shallow and elliptical, with the plane of the 
shorter axis somewhat higher than that of the longer; the two 
axes of the ellipse are as 100 to 44. There are five cycles of 
septa with six systems, of which only the two central ones are 
complete ; in the figured calice the septa number 76. The first 
three orders are stout and equal; the higher orders diminish both 
