68 



PROF. P. MAETIN DUNCAN's REVISIOJ?" OP THE 



nate corallites, close or rather distant. Corallites rather short. 

 Calices circular, except where crowded, deep. Columella small or 

 well developed, trabeculate from the septal ends ; with from one to 

 three or four pillars rising from the base and uniting and joining 

 the trabeculae; upper surface ragged or papillose. Septa well 

 developed, numerous, unequal, some exserfc, entire or minutely 

 denticulated, granular, with or without paliform lobe. Costse 

 usually well developed. Epitheca wanting. Endotheca mode- 

 rate. Basal expansion spreading, calcareous. 



Distribution. — Becent. West Indies, Panama, Elorida, British 

 Channel P Malacca, "W. coast of North and Central America. — 

 Fossil. Eocene, Miocene : Europe. 



Mr. S. 0. Bidley has shown that PJiyllangia, like Coenangia^ 

 Verrill, may sometimes bud from the wall of the parent corallite. 



I beheve that Hoplangia, Grosse, Actin. Brit. p. 338 (1860), is 

 synonymous with JPhyllangia. 



G-enus ULANaiA, Milne-Edwards Sf Jules Haime^ Hist. Nat. des 

 Corall. vol. ii. p. 617 (1857) ; corrected in accord with Verrill^ 

 Notes on Madiata, p. 533 (1868). 



Colony scattered, basal expansion not developing scleren- 

 chyma. Corallites distant, very low and broad, with a well- 

 developed papillary columella and very numerous septa, the 

 higher orders of which are very denticulate, and the others exsert 

 and partly plain. Costse near the calice, and an epitheca near 

 the base. Endotheca exists. 



Distribution. — Becent. Panama and Philippines. 



Grenus Stylangia, Beuss, Bal. Stud, uber die alt. Tert.^Denhsch. 

 der Kais. Akad. der Wiss. Wien, 1874, p. 11. 



Colony incrusting. Corallites short, united by basal expan- 

 sions. Calice circular, moderately deep. Columella styliform. 

 Septa unequal, not exsert. Costae visible on the wall. Epitheca 

 and endotheca exist. 



Distribution. — Fossil. Eocene : Europe. 



Genus Colangia, Pourtales, Illust. Cat. Mus. Comp. Zool. 

 Harvard, No. iv. 1871, Deep-Sea Corals, p. 31. 



Corallum immersed in an expanded basal epithecal membrane, 

 forming several successive storeys following the growth of the 



