168 BRITISH FOSSIL CORALS. 



Professor M'Coy mentioned the existence of this species at Red Castle, Maset Rath, 

 Glasgow, the Isle of Man, and Kendal. Specimens from Tournay are in the Paris 

 Museum, and in the collections of M. de Verneuil and M. Michelin. It is from the latter 

 that we have described this fossil, and it is only on the authority of Professor M'Coy that 

 we enter it here in the list of the British Corals. 



Z. cornucopia is easily distinguished from most species belonging to the same genus 

 by the position and the form of the septal fossula, which extends from the centre of the 

 calice to a small distance from the mural margin towards the large curve or dorsal side of 

 the corallum. This species is, however, very nearly allied to Z. Konincki} from which it 

 differs principally by its calice being circular and its septa thicker and broader. In 

 Z. centralis 9, the septal fossula is also placed in the centre of the calice, but does not extend 

 outwards, and the septa are strong, and seem inclined to form four groups. Z. Griffith? 

 is much stouter, and its calice presents two small lateral septal fossulae. In Z. Enniskillen? 

 the septal fossula extends from the centre of the visceral chamber towards the concave side 

 or small curve of the wall. In Z. Bowerbank? the fossula remains limited to the centre of 

 the calice, and in Z. Phillips? it is almost central and circular. 



2. Zaphrentis Phillipsi. Tab. XXXIV, figs. 2, 2a, 2b. 



Zaphrentis Phillipsi, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palaeoz., 



p. 332, pi. v, fig. 1, 1851. 



Corallum slightly curved, somewhat elongate, and encircled with a few well-marked 

 constrictions, sometimes presenting even a series of solutions of continuity in its wall. 

 Epitheca strong. Calice circular, very deep, and having a thin margin. Septal fossula 

 large, situated towards the dorsal side or large curve of the corallum, but near the centre of 

 the calice, deep, enlarged outwardly, and presenting in its middle a septum that is very 

 distinct from the other ones. In the adult specimens thirty-two principal septa thin, very 

 narrow, extending to the edge of the fossula, alternating with an equal number of small 

 ones, and forming four groups in consequence of the three primary ones being slightly 

 prominent, and representing, with the fossula, a four-branched cross ; in each of the two of 

 these divisions situated on the dorsal side of the calice there are seven principal septa, and 

 in the two others eight; the first of these septa somewhat deviating from the regular 

 radial arrangement. Height of the corallum about 14 lines ; diameter and depth of the 

 calice 7 or S lines. 



Found at Frome, and Slab-house, in England ; at Tournay, in Belgium ; and at Sable, 

 in France. 



1 Milne Edwards and Jules Haime, Polyp. Palseoz., tab. v, fig. 5. 2 Ibid., tab. iii, fig. 6. 



3 See tab. xxxiv, fig. 3. 4 See tab. xxxiv, fig. 1. 5 See tab. xxxiv, fig. 4. 



6 See tab. xxxiv, fig. 2. 



