176 



pnoF. P. MATiTiN Duncan's eevisiok op the 



obscure. Epitheca well developed, coming up not far from tlie 

 calicular edge, marked with ridges or not, and its substance pene- 

 trating the porose wall. 



Distribution. — Fossil. Pliocene: England (specimen in York 

 Museum). — Recent. Philippines, Admiralty Islands, Florida, 

 North Atlantic. Deep water. 



G-euus Efpsammta, Milne- Edwards Sf Jules Haime, Sist. Nat. 

 des Corall. vol. iii. p. 94 (1860). 



Corallum simple, subturbinate, free in adult age, when the 

 traces of adherence gradually disappear, compressed or not. 

 Calice elliptical or suboval, deep and narrow centrally. Columella 

 variably developed, of twisted processes, tubercular or papillary, 

 or spongy, or barely existing. Septa solid or roughly perforated, 

 numerous, close, well developed, slightly exsert, strongly granular 

 on their sides, and uniting by the granules here and there ; the 

 septa of the last cycle more developed tlian the penultimate, and 

 curving towards and joining or not the septa of the cycle prece- 

 ding them in age. "Wnll porous, naked, showing simple, close, 

 unequal verrucelLite, disiinctly granular costse. 



Distrihuiion. — Fossil. Eocene, Oligocene, Miocene : Europe. — 

 Recent. Chinese seas. 



Synapticula are often seen near the calicular margin, between 

 septa. 



Genus Endopachts, Lonsdale, Quart. Journ. Geol. Soc. Lond. 

 voL i. p. 214 (1845). 

 Corallum simple, straight, free, compressed and keeled along 

 the narrow base and sides, where there are also costal wing-shaped 

 appendices. Calice with unequal axes on different planes ; the 

 fossette long and narrow. Columella spongy, slightly developed. 

 Septa in five cycles, narrow, slightly exsert, close, the higher 

 cycle joining the preceding, sides granular. 



Distribution. — Fossil. Eocene : Alabama. — Recent. Australian 

 seas ? 



Grenus Heteeopsammta, Milne-Edwards Sf Jules lEaime, Ann. 

 des Sci. Nat. 3^ ser. t. x. p. 89 (1848) ; Hist. Nat. des Corall. 

 vol. iii. p. 105. 



Corallum simple, straight, low, increasing fissiparously so as 



