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 ¢abwle 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 Visé, 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. coralloides is very remarkable by its elongate cylindroid form. These characters 
distinguish it at first sight from 4. Henslowi’. It never presents any acute transverse 
ridges, as those seen in 4. xodulosus,’ and A. annulatus ;* nor any spines, as in A. 
spinosus.* It much resembles 4. cornubovis’ and A. Yandelli,’ but differs from them by 
having the septa less developed, and the septal fossula shallower. 
2. AMPLEXUS CORNU-BOVIS. 
CYATHOPHYLLUM MITRATUM, (pars,) De Koninck, Anim. Foss. des Terr. Carb. de Belg., 
p- 22, pl. c, fig. 5d, (ceeter. excl.) 1842. A 
young specimen. (Not WHippurites mitratus, 
Schlotheim.) 
— PLICATUM, (pars,) Idid., op. cit., pl. c, figs. 4e, 4d, de, (cet. excl.) 
CANINIA corNU-BovIS, Michelin, Icon., p. 185, pl. xlvii, fig. 8, 1845. 
CyarHopsis cornv-Bovis, D’ Orbigny, Prod. de Pal. Univ., vol. i, p. 105, 1850. 
_— — M‘Coy, Brit. Paleeoz. Foss., p. 90, 1851. 
AMPLEXUS CORNU-BOvIS, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzeoz., 
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, Paleeoz. Foss., p. 8; Amplexus serpuloides, De Koninck, A. Carb. de Belgique, tab. 8, fig. 18. 
3 Verneuil and Jules Haime, Bulletin de la Soc. Géol. de France, 2* sér., vol. vii, p. 151; Milne 
Edwards and Jules Haime, Polyp. Palzeoz., p. 345. 
4 De Koninck, op. cit., tab. c, fig. 1. 
6 Milne Edwards and Jules Haime, op. cit., tab. 11, fig. 1. 6 Tbid., tab. iii, fig. 2. 
