174 BRITISH FOSSIL CORALS. 



equally developed, thin, set wide apart, and quite marginal ; they vary in number from 28 

 to 58, according to the age and the size of the specimens. The tabula are very large, very 

 closely set, and the greatest part of their surface is smooth. A small depression, 

 corresponding to the septal fossula, is visible near the wall, and is always more distinct on 

 the last tabula than on the others. 



This species is found in Ireland, near Dublin ; at Kildare ; at Carlingford, Lauth, in the 

 county of Clare ; in the Valley of Maine, Kerry ; at Killarney, and at Cork. According to 

 Prof. Phillips, it is also met with at Bolland,Kettlewell, Menai Bridge, and in the Isle of Man. 

 We have also seen specimens from Tournay and Vise, in Belgium, Casatchi Datchi in the 

 Oural Mountains, and Varsaw in Illinois, United States. 



Specimens are in the Collections of the Geological Society, the Bristol Museum, 

 Mr. Bowerbank, the Paris Museum, M. de Verneuil, &c. 



A. corattoides is very remarkable by its elongate cylindroid form. These characters 

 distinguish it at first sight from A. Henslowi 1 . It never presents any acute transverse 

 ridges, as those seen in A. nodulosus, 2 and A. annulatus / nor any spines, as in A. 

 spinosus i It much resembles A. cornubovis 5 and A. Yandelli, 6 but differs from them by 

 having the septa less developed, and the septal fossula shallower. 



2. Amplexus corntj-bovis. 



Cyathophyllxjm mitrattjm, (pars,) De Koninck, Anim. Foss. des Terr. Carb. de Belg., 



p. 22, pi. c, fig. 5d, (caeter. excl.) 1842. A 

 young specimen. (Not Hippurites mitratus, 

 Schlotheim.) 

 — plicatum, (pars,) Ibid., op. cit., pi. c, figs. 4c, Ad, 4e, (caet. excl.) 



Caninia cornu-bovis, Michelin, Icon., p. 185, pi. xlvii, fig. 8, 1845. 

 Cyathopsis cornu-bovis, D'Orbigny, Prod, de Pal. Univ., vol. i, p. 105, 1850. 



— — M' Coy, Brit. Palseoz. Foss., p. 90, 1851. 



Amplexus cornu-bovis, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palseoz., 



p. 343, 1851. 



Corallum cylindro-conical, very elongate, strongly curved, often somewhat twisted, and 

 presenting well-marked, circular accretion swellings. Epitheca much wrinkled. Calice 

 rather deep. Septal fossula almost round, and placed very near the wall towards the 

 dorsal or convex side of the corallum. Principal septa numerous, (about thirty,) very thin, 



1 See tab. xxxiv, fig. 5. 



2 Phillips, Palseoz. Foss., p. 8 ; Amplexus serpuloides, De Koninck, A. Carb. de Belgique, tab. b, fig. 18. 



3 Verneuil and Jules Haime, Bulletin de la Soc. Geol. de France, 2 de ser., vol. vii, p. 151; Milne 

 Edwards and Jules Haime, Polyp. Palseoz., p. 345. 



4 De Koninck, op. cit., tab. c, fig. 1. 



5 Milne Edwards and Jules Haime, op. cit., tab. ii, fig. 1 . 6 Ibid., tab. iii, fig. 2. 



