184 Mr. P. M. Duncan on some Fossil Corals 



the others. All the septa correspond to the depressions between 

 the costae. 



Height £ inch, breadth T 2 n inch. 



Hamilton, Victoria, South Australia. Coll. Geol. Soc. 



Conosmilia, nov. gen. 



Coral simple, pedicellate, conical. Columella formed of one 

 or more twisted laminae, which extend from the base upwards. 

 Endotheca scantily developed. Septa apparently with simple 

 margins, and variable in regard to the number of the primary. 



3. Conosmilia clegans, ri. sp. PI. VIII. fig. 3 a, b, c. 



The pedicel is large. The costae, 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 arc nearly 

 plain, are as thick at the columella as at the calicular margin, 

 and appear to arise between the costae. The calice is nearly 

 circular. 



Height -fV inch ; breadth of calice -^ inch. 



Geelong, Victoria, South Australia. Coll. Geol. Soc. 



4. Conosmilia anomala, n. sp. Tl. VIII. fig. 4 a— e. 



The coral is tall in relation to its small pedicellate base. The 

 costae arc 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, strong, and consists of 

 two twisted riband-shaped laminae. The septa are in eight sys- 

 tems of three cycles; the laminae are sparely granular, and the 

 primary are attached to the columella by processes. The se- 

 condary are smaller than the primary, and their inner edge is 

 wavy; the tertiary septa are small. The septa arise between 

 the costae. The endotheca is sparely developed. The wall is 

 very thin. The calice is slightly elliptical. 



Height -j^j- inch, greatest breadth ^\, inch. 



Hamilton, Victoria, South Australia. Coll. Geol. Soc. 



5. Conosmilia striata, n. sp. PI. VIII. fig. 5 a-c. 



The coral has a very narrow base, and does not expand gra- 

 dually. The costa 1 are very broad, have marked lines between 

 them, are xtvy 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, 



