66 



PROF. P. MARTIN DTJNCAN'S REVISION OF THE 



centrally. Columella small, lamellar. Septa numerous, exsert at 

 the margin, upwardly curved, and sloping to the columella, entire, 

 granulate, granules in rows parallel with the free edge. Endo- 

 theca abundant. Epitheca membranous, smooth, covering the 

 costae here and there, not perfect. 



Distrihution, — Fossil. Oolite : ISTattheim, Europe. 



This genus is too closely allied to Lophosmilia to stand. It is 

 clearly an epithecate subgenus. 



Genus Pleueosmilia, E. de Fromentel, Bull. Soc. Geol. de 

 France, 2' ser. t. xiii. p. 853 (1858). 



Corallum simple, variable in shape and height, tall or short, 

 Bubturbinate, conico-cylindrical. Calice circular or elliptical. 

 Columella lamellar, i^rojecting or not, united to a large septum, 

 which is more developed than the others. Septa numerous, 

 entire. Endotheca exists. Epitheca strong, covering the wall. 



Distribution. — Fossil. Jurassic : Europe. 



The genus Trismilia, E. de Eromentel, Introd. a I'etude &c. 

 p. 106, is stated to be " tres voisin des Pleurosmilies," but to differ 

 by having only three primaries develoj^ed, and a columella pyra- 

 midal and triangular in shape. One species, from the Portland 

 Oolite of Eranee, is noticed. 



At present this genus had better be associated with Fleuro- 

 smilia. 



Genus Peplosmilia, Milne-Fdwards Sf Jules Haime, Brit. Foss. 

 Corals, Fal. Soc., Introd. 1848, p. xxv. 



Corallum simple, adherent by a large base, and is cylindrical. 

 Calice circular or suboval ; fossa well developed, with a lamellar 

 columella at the bottom. Septa entire, broad, arched, but very 

 slightly exsert at the margin, striated, entire. Endotheca abun- 

 dant. Epitheca strong, membraniform, complete. 



Distrihution. — Fossil. Cretaceous : England. Laube places the 

 genus in the St. Cassian strata of Europe. 



Genus Blastosmilia, Ftallon, in F. de Fromentel, Introd. d 

 V etude des polyp, foss. p. 107 (1858-1861) {non Duncan), 



Corallum simple, elongate, slightly bent at the base, and sub- 

 cylindrical. Calice round and deep. Columella strong and 

 compressed. Septa in four cycles, moderately thick and slightly 



