1870. ] DUNCAN—AUSTRALIAN CORALS, 305 
Conosmi1ia, Duncan. 
Coral simple, pedicellate, conical. Columella formed of one or 
more twisted lamine, which extend from the base upwards. En- 
dotheca scantily developed. Septa apparently with simple margins, 
and variable in regard to the number of the primary. 
27. CoNosMILIA ELEGANS, Duncan. Plate XX. fig. 5. 
The pedicel is large. The coste, equal, sharp, and prominent at 
the base, become broad, flat, and granular above, where they are 
separated by very faint lines. The columella is formed by one 
twisted lamella, and occupies much space. ‘The septa are in eight 
systems of three cycles. There are eight primary septa which reach 
the columella; the secondary are smaller and reach midway; and 
the tertiary are very small. The septa are nearly plain, are as 
thick at the columella as at the calicular margin, and appear to arise 
between the coste. The calice is nearly circular. 
Height ;%, inch. Breadth of calice +/; inch. 
Locality. Geelong, Victoria, South Australia. 
28. ConosmIzIa ANoMALA, Duncan. Plate XX. fig. 10. 
The coral is tall in relation to its small pedicellate base. The 
coste are not prominent, but are traced by the faint lines which 
separate them, and by the fine herring-bone pattern which marks 
each of them. The columella is large and strong, and consists of two 
twisted riband-shaped lamine. The septa are in eight systems of 
three cycles ; the lamin are sparely granular; and the primary are 
attached to the columella by processes. The secondary are smaller 
than the primary, and their inner edge is wavy; the tertiary septa 
are small. The septa arise between the coste. The endotheca is 
sparely developed. The wall is very thin. The calice is slightly 
elliptical. 
Height =, inch. Greatest breadth 2, inch. 
Locality. Hamilton, Victoria, South Australia. 
29. ConosmitIa striata, Duncan. Plate XX. fig. 9. 
The coral has a very narrow base, and does not expand gradually. 
The costz are very, broad, have marked lines between them, are very 
flat, and have wavy transverse markings like those of a pellicular 
epitheca. Septa in six systems of three cycles; the primary, which 
are granular, reach the columella, which appears to be formed by 
one twisted process. The septa arise between the cost. The calice 
is more or less elliptical. 
Height ;§, inch. Greatest breadth 52; inch. 
Locality. Geelong, Victoria, South Australia. 
30, ConosMILIA LiTvoLUS, n. sp. Plate XX. fig. 11. 
The corallum is horn-shaped, long, tapering and doubly curved. 
The pedicel is small. The body is marked with growth-rings, and 
the coste are yery feebly developed. The intercostal spaces are in- 
