160 BRITISH FOSSIL CORALS. 



Middleham, Florence Court, and Arran, by Professor Phillips; in Derbyshire, at Kendal, 

 in the Isle of Man, at Kulkrag in Fermanagh, at Clogher and Benburn, (Tyrone,) by 

 Colonel Portlock, and in Belgium. A specimen, in a very bad state of preservation, that 

 belongs to the collection of the Geological Society, was met with in the Llandeilo Flags 

 in Marloes Bay, and appears to be specifically identical with the above-described car- 

 boniferous fossils. 



C. tumidus can easily be distinguished from the other species of the same genus which 

 have a similar form, by the very small size of their calices, their thick margin, and almost 

 circular form. 



We are inclined to think that the fossil described by Professor M'Coy, under the 

 name of Verticillopora dubia} may belong to this species. The Ramose milleporite of 

 Parkinson, 2 appears also to be referable to it. This last-mentioned fossil was found in 

 Wiltshire. 



2. Genus Beaumontia. 3 



1. Beaumontia Egertoni. Tab. XLV, fig. 1. 



Beaumontia Egertoni, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palseoz., 



p. 276, 1851. 



Corallum forming a tall, lobate mass. Corallites basaltiform, somewhat flexuous, and 

 showing distinctly costal striae under the epitheca. Calices very variable in size ; the 

 largest about three lines in diameter. Tabidce closely set, mostly horizontal, and very 

 slightly convex, some incomplete and subvesicular. 



The specimen here described belongs to the collection of the Geological Society of 

 London, and was found by Sir P. Egerton, at Sracrapagh, Fermanagh (Ireland). 



The genus Beaumontia has been established by us since the publication of the first 

 part of this Monograph ; it is, therefore, necessary to mention here that it comprises the 

 Favositidse with non-perforated walls and a more or less vesicular endotheca. This division 

 has the same relation to Chsetetes as Michelinia has to Favosites. 



Beaumontia Egertoni differs from B. venelorum^ and B. laxa, by its tabulae being 

 mostly horizontal, and but very slightly convex. In a fourth species, E. Guerangeri? the 

 calices are much more irregular, and smaller. 



1 Synop. of Carboniferous Fossils of Ireland, p. 194, tab. xxvii, fig. 12; Ceriopora dubia, D'Orbigny, 

 Prod., vol. i, p. 161. 



2 Organ. Rem., vol. ii, tab. viii, fig. 3 ; Millepora ramosa, Woodward, Synop. Table of Brit. Org. 

 Rem., p. 5. 



3 Milne Edwards and Jules Haime, Pol. Foss. des Terr., Palaeoz., p. 276, 1851. 



4 Op. cit., p. 276, tab. xvi, fig. 6. 



5 Op. cit., tab. xvii, fig. 1. 



