160 PEOF. P. MAETIN DTJNCAK's EEYISION OF THE 



Subgenus Phtlloseris, (genus) Tomes, Quart. Journ, Geol. 

 8oc. vol. xxxviii. p. 447 (1883). 



Differs according to its describer wholly in the way in which 

 the fronds are produced (? developed), and in the presence of a 

 strongly developed epitheca, from Protoseris. The only distinc- 

 tion is the presence of an epitheca, which is not generic. Hence 

 the species Phylloseris rugosa, Tomes, must come within the scope 

 of the geuus Protoseris. I place Phylloseris as a subgenus of 

 Protoseris. Its sole locality is in the Lower Oolite of England. 



III. Alliance STEPHANARIOIDA. 



Colonial Lophosei'idse; massive, incrusting, or lobate and subdendroid. 

 Septo-costse confluent and well developed. Walls absent or indistinct. 

 No coUines. 



Genus Stephanaria, Verrill. 

 Genus Pratzia, Duncan. 



Genus Stephanaeia, Verrill, Trans. Connect. Acad. i. p. 340 



(1867). 



Colony in short lobe-like branches. Calices moderately large, 

 with two or three cycles o£ septa, denticulate on the edge, well 

 developed and confluent. Walls indistinct or wanting ; the 

 division between the calices indicated only by small granular 

 points, which sometimes interrupt the septa of adjoining calices. 

 Columella papillose. Paliform papillae before all the principal 

 septa, the inner ones becoming confounded with the columella. 



Distribution. — Becent. West-American coast. 



Genus Peatzia. 



Syn. Plerastrcsa, Duncan, Foss. Corals &c. of Sind, 1880, 

 p. 65, Pal. Indica, Ser. xiv. 



The colony is massive, incrusting. Calices superficial. Colu- 

 mella substyloid, produced by the septal ends. Septa solid, 

 arranged in several lozenge shaped or triangular groups, con- 

 fluent, crowded. Walls absent. Synapticula abundaat, close, 

 and reach high up in the interseptal loculi. Endotheca absent. 

 Epitheca absent. 



Distribution. — Fossil. Eocene of Sind, Asia. 



