FAMILIES AND GENEEA OE THE MADEEPORAEIA. 57 



exsert. Costge close and siibequal. Endotheca moderately 

 abundant. Epitheca complete, with accretion-ridges hiding the 

 costse. 



Gemmation from the everted margin of the calice at certain 

 epochs of growth. Buds become detached and leave a scar. 



Distribution. — Fossil. Oolite : Europe. 



Tribe II. 



Genus Sphenophtllia, Moseley, Beport on Corals ' Ghallenger ' 

 Eccpedition, 1879, p. 182, pi. s. fig. 1. 



Corallum solitary, free, pedicellate, compressed, with septa 

 finely denticulate at the summits, and numerous wedge-shaped 

 costse, which are denticulate, rendering the corallum exceedingly 

 rough. A scanty epitheca at the base ; no endotheca or exotheca. 

 A well-developed lamellar columella. 



Distribution. — Becent. Locality unknown. 



Moseley places this form amongst the Astrseidse of Dana, in 

 spite of his not observing endotheca. After much consideration 

 I agree, but I am not satisfied that some endotheca does not 

 exist near the columella, 



ITT. Alliance LITIIOPHYLLIOIDA. 



Simple corals, with entire or dentate, incised or spined septa, endotheca, 

 and a spongy or trabeculate columella. Wall costulate and naked, or with 

 an epitheca. 



Tribe I. With entire septa. 

 „ II. With dentate septa. 

 I. Genus Parasmiha, Ed. & H. 

 Genus Dasmosmilia, de Pourtales. 

 Genus Conosmilia, Duncan. 

 II, Genus Lithophyllia, Ed. & H. 

 Genus Circophyllia, Ed. & H. 

 Subgenus Leptaxis, Reuss. 

 Subgenus Antillia, Duncan. 

 Genera absorbed : — 



Cylicosmilia, Ed. & H. ; Ccenosmilia, de Pourtales ; 

 Anomocora, Studer ; Cyathophyllia, E. de From. ; 

 Smilophyllia, E. de From.; Syzygophyllia, 

 Reuss; Cynarina, Briigg. ; Scolymia, Haime ; 

 HOMOPHYLLIA, Brdgg, 

 Leptaxis and AntilUa become subgenera. 



