Antiilia ? compressa (Duncan) 
PI. , fig. 
1873. Circophyllla compressa , Duncan, Quart. Jour. Geol. Soc. 
London, vol. xxix, p. 556, pi. xx, figs, 
9 , 9a , 9b » 
1899. Circophyllla compressa , Vaughan, Bull. Mus. Comp. Zocl. , 
yoI. xxxiY, No. 1, p. 229. 
The follo¥/ing is Duncan’s original description: 
"The corallum is fall, sub turbinate, curved in the plane of 
the greatest axis of breadth, and is compressed laterally from 
the small peduncle to the deep calice, 
"The calice is elliptical in shape; its margin is stout; 
the fossa is deep, and the longer septa reach a well-deve loped 
columella with a flat top. 
"The septa are of different and unequal sizes. There are 
five cycles of them in six systems; but the members of the fifth 
cycle are very small, and do not reach far from the margin. 
