200 BRITISH FOSSIL CORALS. 
12. Lirnostrorion aFFIne. ‘Tab. XXXIX, figs. 2, 2a, 2d. 
Maprepora, Knorr and Walch, Rec. des Mon. des Catastr., pl. Ixi*, fig. 2, 1775. 
— pectinata, &e., Parkinson, Org. Rem., vol. ii, pl. vi, fig. 5, and perhaps fig. 9, 
1808. 
ERISMATOLITHUS MADREPORITES (AFFINIS), William Martin, Petref. Derb., pl. xxxi, 1809. 
CARYOPHYLLIA AFFINIS, Fleming, Brit. Anim., p. 509, 1828. 
— — De Blainville, Dict. Se. Nat., vol. lx, p. 311, 1830; Man. d’ Actin, 
p- 346.. 
— — Woodward, Syn. Table of Brit. Org. Rem., p. 6, 1830. 
LITHODENDRON AFFINE, Keferstein, Nat. der Erdk., vol. ii, p. 785, 1834. 
— LONGICONIcUM and soctaLE, Phillips, Geol. of Yorkshire, vol. ii, p. 203, 
pl. u, figs. 18, 19, 1836. 
-- SOCIALE and Lonertconicum, Portlock, Rep. on Lond., pp. 335-36, 1843. 
— AFFINE and socraLE, M‘Coy, Carb. Foss. of Ireland, pp. 188-89, 1844. 
DIPHYPHYLLUM LONGICoNIcUM and soctaLE, D’ Orbigny, Prod., vol. i, p. 159, 1850. 
LirHostROTION AFFINE, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzeoz., 
p. 437, 1851. 
Corallum fasciculate, dendroid. Corailites erect, cylindro-turbinate, very tall, giving 
rise to many young individuals, which bend upwards immediately, often coalescent and 
cemented together, and covered from top to bottom with a thin slightly wrinkled epitheca. 
In the parts where the epitheca is worn away, the costee become visible, and are flat, closely 
set, and equal in size. Calice circular, broad and deep. Co/wmella compact, compressed, 
and projecting in the centre of the calicinal tabule in the form of a small crista. Septa 
narrow and closely set ; the principal ones almost equal (30 or 32), alternating with almost 
rudimentary ones, which do not articulate on the surface of the tabule, are thm, and 
appear to be denticulate. Zul very closely set, convex towards the centre, but bending 
upwards towards the circumference, simple, regular, and run through by the columella, 
to which they are intimately united. The smooth part of their upper surface, on which 
the septa do not extend, occupies somewhat more than one third of the diameter of the 
corallum, which is about 5 or 6 lines. 
The specimens here described were found at Castleton. Professor Philips mentions 
the existence of this species at Kulkeagh mountain, Florencecourt, and Settle; according 
to Martin, it is met with also at Winster, and, according to Colonel Portlock, at Derry- 
loran and Kilcronaghan. Specimens are in the collections of Mr. Bowerbank, of the Paris 
Museum, and of M. de Verneuil. 
This’ species is the largest of all the fasciculate Lithostrotions except LZ. canadense,* in 
which the corallites are sometimes cylindrical and quite free laterally, and at other places 
prismatic and completely cemented together, and in which, also, the centre of the calice is 
1 Milne Edwards and Jules Haime, Pol. Palseoz., tab. xiii, fig. 1. 
