312 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



irregular processes ; septa very thin and broad in five cycles, which 

 by the irregularity of the three first orders have the appearance 

 of 24 systems. 



New Zealand is the habitat given by Messrs. Q. and G., at 

 24 fathoms, but I have seen specimens stated to have been found 

 in Australia, but as they were in collections with N. Zealand 

 shells I am doubtful of the habitat. 



Flabellum Gambierense, Duncan, Quart. Jour. Geol. Soc, 1870, 



p. 299. 



Found as a fossil at Muddy Creek ; a tall, narrow, pedicellate 

 form, curved, with long tapering pedicel, concave sides, and often 

 small spines nearer the calice than the pedicel ; compressed 

 epitheca, strong, in arched finely linear folds ; calice oval-ellip- 

 tical ; septa in six systems of four cycles, primary and secondary 

 equal, stout, granular, enlarged internally to form by their ends 

 a rudimentary parietal columella ; other septa smaller and 

 granular ; the septa are continuous with depressions between the 

 intercostal spaces which are marked with chevron lines on the 

 epitheca, and are in a certain sense costse. 



Height of coral about 16 mil ; diam. about half ; min. axis 

 only slightly different. Fossil at Cape Otway. 



Flabellum victorle, Duncan, loc. cit. 

 A small stout almost circular species with large basilar scar 

 and two spinous processes at each side of the base like radiciform 

 appendages. Muddy Creek and Geelong, fossil. Coral tall, 

 compressed below, sides slightly concave, epitheca with faint 

 markings ; angle of sides about 20° ; calice elliptical, end slightly 

 depressed ; fossa shallow except at the centre where it is deep, 

 narrow and long ; wall thin ; septa? delicate, not exsert, very little 

 rounded ; granules large, unequal, and in series in six system of 

 four cycles ; primary and secondary equal ; costse faint, continuous 

 with the septse. 



Flabellum duncani, Nobis. Proc. Roy. Soc, Tasmania, 1876, 



p. 115. 



