150 BRITISH FOSSIL CORALS. 
CaRYOPHYLLIA QUADRIFIDA, Howse, Trans. of the Tyneside Nat. F.C., vol. i, p. 260, 1848. 
PETRAIA PROFUNDA, King, Perm. Foss. of England, p. 23, tab. iii, fig. 2, 1850. 
Potyc@tia ProruNDA, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzoz., 
p. 317, 1851. 
“Form conical, and slightly curved. Cavity deep and longitudinally furrowed. Plates 
of two lengths, the longest five or more in number, plain edged (?), and reaching half way 
to the centre; the shortest from one to four in number. Lamellar interspaces with two 
very finely denticulated, slightly prominent ridges. 
“ T have only succeeded in procuring two or three specimens from the shelly mag- 
nesian limestone at Humbleton Quarry. Geinitz states its having been found in the lower 
Zechstein at Hisleben, Ilmenau, Gerbstedt, and between Hettstadt and Leimbach.” (King, 
op. cit.) 
Aulopora Voigtiana, King, op. cit., p. 31, pl. i, fig. 18, appears to be a Brrozoum. 
CHAPTER XIV. 
CORALS FROM THE MOUNTAIN LIMESTONE. 
Tuer Fauna of the Mountain Limestone Period is one of the richest in true Polypi ; 
seventy-six species have already been found in the deposits appertaining to this geological 
division, and the presence of none of these Corals has, as yet, been satisfactorily proved 
in beds belonging to any other period. Forty-three of these species are British, and 
they are referable to six families :—Milleporide, Favositide, Seriatoporide, Auloporide, 
Cyathaxoniide, and Cyathophyllide ; but the Favositide and the Cyathophyllide are the 
forms which have the most numerous representatives among these Fossils. 
The principal localities from which they have been obtained, are Castleton, Bakewell, 
Oswestry, Derbyshire, Bolland in Yorkshire, Masbury, near Mendip, in Somersetshire, 
the environs of Bristol, Kendal in Westmoreland, Wellmgton in Shropshire, Mold, 
Lilleshall, Frome, Clifton, &., in England; the Isle of Man; Armagh, Enniskillen, 
Kulkeag (Fermanagh), Wexford, and Easky (Sligo), in Ireland. 
Most of the Carboniferous Fossils that we have represented in the plates jomed to this 
Monograph, belong to the Collections of the Geological Society of London, the Museum of 
Practical Geology, under the direction of Sir Henry De la Beche, the Museum of Bristol, 
and the rich Cabinet of our esteemed friend J. 8S. Bowerbank, Esq. We much regret not 
having been able to obtain the same liberal aid from the Museum of the University of 
