CENSUS OF THE OLDER TERTIARY FAUNA OF AUSTRALIA. 413 
Species, including those he had already named. Subsequently the 
late Tenison-Woods, not only diagnosed a number of additional 
species, but instituted several new genera, the majority of which 
have been accepted as valid. With his decease, the records of our 
Tertiary coral fauna have been allowed to fall into arrears, a single 
species only having been since described, and that by my colleague 
in his previous paper on “ Unrecorded Genera,” read before this 
Society in 1893. 
As a result of the persevering manner in which the Tertiary 
beds of the southern colonies have been searched during the last 
decade, there is an accumulation of material on hand, which in 
the absence of other workers I have undertaken to examine. As 
unrecorded genera for the Australian Tertiary, the following are 
represented by the species now described. 
Family TURBINOLID2. 
Genus Paracyathus. 
PARACYATHUS SUPRACOSTATUS, sp. nov. (Plate 20, figs. 2 a, b.) 
Corallum almost straight, and gradually tapering from both ends 
to the slightly constricted middle portion. The base is broad and 
Spreading, and has evidently been attached to some foreign sub- 
Stance. The costz, which correspond with, and are continuous with 
the septa, are prominent at the calicular margin, with tolerably 
deep intercostal spaces in which the wall is visible ; they gradually 
diminish in size to the middle of the corallum and are thence just 
traceable to the base as faint, scarcely raised lines ; towards the 
calice they are finely granular. Epitheca pellicular and complete. 
Septa stout but diminishing gradually in size from the primaries 
to those of the highest order. Systems six, with four cycles. In 
the figured specimen one system is short in regard to the fourth 
cycle. The lamine are very granular with irregular outer edges. 
The columella is fascicular and highly papillary. There are stout 
pali before all the septa except those of the last cycle, the youngest 
reaching higher in the calicular fossa than the secondaries, and 
these again than the primaries. The tertiary pali are also usually 
