— 
Eee 
2 EQ eeEE——— 
. E . - ” re 
ip aaa R 5 
= 
. 
ON SOME AUSTRALIAN TERTIARY CORALS. 193 
pace parags B im appearance. The septa are in six systems of three 
cles, they are ‘wider at the wall than elsewhere an nular, and 
Al 
are more exsert in this instance than usual and the base narrower, 
but it is the same species. (Plate J, fig. 3a, and plate IT, » Jeg. 1.) 
Family AstRx1x saat family oe Division 
ROCHOSMILIA 
Genus icity, Soin 1870. 
Coral, simple, pedicellate, conical. Columella formed of one 
or more twisted laminw which extend from the base upwards. 
Endotheca scantily developed. Septa a males A pai simple 
margins, and variable in regard to the number of the primary. - 
This v ery remarkable genus was erected by Moron 2s Duncan 
for some Australian Tertiary corals of very abnormal form 
They are simple, with pellicular epitheca having a peculiar zigzag 
or “herring-bone” ornamentation, an essential twisted columella 
and. plain 
cycles in six n Agere 
ConosMILIA BIC s. Coral, small, — lightly 
tapering, tall, pedicle, baa half id size of calice we only 
traceable by the faint line which separates them, “her seca Bem 
attern scarcely discernible. Columella large and strong, and 
form 
Space. Septa arising .between the coste and are in six systems 
of two eycla; the primary reach the columella and are _—. 
to it by processes, and are very wavy, uneven, and of equ 
thickness throughout. The secondary are very small, not reach- 
ing a fourth of the distance to the co umella, curved anil 
] are sparely studded with long spimiform granules. Endo- 
ned epately dev ee Wall very thin, ealice nearly Snersena 
, 12; diam. base, 2 ; diam. calice, 3 millim. Rare. 
oe following i isa synopsis of the species already known :— 
wiescrrad i eycles 3: : | 
Pedicel large, cost pro i a C. elegans. 
Pedicel small, cost faint, oe a liptical. nomala. 
Pedicel very small, cost very faint-marked ‘with prominent 
— sof growth. C. lituolus. 
