CORALS FROM THE MOUNTAIN LIMESTONE. 171 



6. Zaphrentis patula. 



Caninia patula, Michelin, Icon. Zooph., p. 255, pi. lix, fig. 4, 1846. 



Zaphrentis patula, Milne Edwards and Jules Haime, Polyp. Foss. des Terr. Palseoz., 



p. 338, 1851. 

 Cyathopsis fungites, M'Coy, Brit. Paleeoz. Foss., p. 91, 1851. (Not Turbinolia fungites, 



Fleming.) 



Coralhm conical, somewhat elongate, strongly curved, delicately pedunculated, and 

 showing well-marked circular accretion swellings. Calice large and deep. Septal fossula 

 deep, broad, not extending to the centre of the calice, and situated towards the dorsal or 

 convex side of the corallum. Principal septa numerous (about 40), equally developed, 

 very thin, and extending on the tabula, in the form of slightly curved ridges. Height of 

 the corallum %\ or 3 inches, diameter of the calice almost 2, depth 8 lines. 



It is on the authority of Prof. M'Coy that we have described this species as being a 

 British Coral ; the numerous specimens which we have seen were all from Boulogne 

 or Tournay ; Prof. M'Coy mentions its existence at Hook, Wexford ; at Craigie, near 

 Kilmarnock; at Ronald's-way (Isle of Man); at Kendal, Westmoreland; also near Glasgow; 

 and at Blyth, Ayrshire. 



Z. patula belongs to the section of the genus Zaphrentis, in which the tabulae are 

 very largely developed, and the septal fossula well constituted. It much resembles 

 Z. Rcemeri, 1 but differs from this species in being less curved, in having thinner and 

 straighter septa, and by its tabula being not so large. Z. ci/lindrica* and Z. giqantea? 

 that also belong to the same subdivision, differ from it by their large size and numerous 

 septa, and Z. Halli i is much more elongate, and has its septal fossula but little developed. 



7. Zaphrentis cylindrica. Tab. XXXV, figs. 1, la, Id. 



Cyathophyllum fungites, Portloch, Rep. on the Geol. of Londonderry, p. 332, 1843. 



(Not Turbinolia fungites, Fleming.) 

 Caninia gigantea, Michelin, Icon. Zooph., p. 81, pi. xvi, fig. 1, 1843. 

 Siphonophyllia cylindrica, Scolder in M'Coy, Syn. of the Carb. Foss. of Ireland, p. 187, 



pi. xxvii, fig. 5, 1844. 

 Caninia gigantea and Siphonophyllia cylindrica, D'Orbigny, Prodr. de Pal. Stratigr., 



vol. i, p, 158, 1850. 

 Zaphrentis cylindrica, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palseoz., 



p. 339, 1851. 

 Caninia gigantea, M'Coy, Brit. Palaeoz. Foss., p. 89, 1851. 



1 Milne Edwards and J. Haime, Polyp. Paleeoz., p. 341. 2 See Tab. xxxv, fig. 1. 



3 Ibid., tab. iv, fig. 1 ; Caryophyllia gigantea, Lesueur, Memoires du Museum, vol. 6, p. 296. 



4 Ibid., p. 341. 



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