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



the others. All the septa correspond to the depressions between 

 the costse. 



Height ^ inch, breadth y^^ inch. 



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



CoNOSMiLiA, nov. gen. 



Coral simple, pedicellate, conical. Columella formed of one 



or more twisted himinje, 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 elcgans, n. sp. PI. VIII. fig. 3 a, b, c. 



The pedicel is large. The cosIjb, 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 cahcular margin, 

 and appear to arise between the costa?. The calice is nearly 

 circular. 



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



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



4. Conosmilia anomala, n. sp. PI. VIII. fig. 4 a-e. 



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

 costse 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, strong, and consists of 

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

 tems of three cycles; the laminaj 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 costse. The endotheca is sparely developed. The wall is 

 very thin. The calice is slightly elliptical. 



Height -jSo 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 costse are very broad, have marked lines between 

 them, are very fiat, 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, 



