266 BRITISH FOSSIL CORALS. 
in North America, and in Russia. In his recent work, Mr. Hall mentions its existence 
in the lower parts of the Clinton group in Wayne county, in Niagara county, and at 
Flamborough Head, in Canada West. 
Specimens are in the Collections of the Geological Society of London, of the Museum 
of Paris, of M. de Verneuil, M. D’Orbigny, &e. 
M. Panderi' very much resembles this species, but differs from it by its turbinate form, 
and the rudimentary state of the tubercles on its upper surface. 
2. Monrvicutrpora paPILLATA. Tab. LXII, figs. 4, 4a. 
NEBULIPORA PAPILLATA, M‘Coy, Ann. and Mag. of Nat. Hist., 2d series, vol. vi, p- 284, 1850. 
a —_— M‘Coy, Brit. Paleeoz. Foss., p. 24, pl. ic, fig. 5, 1851. 
CHA&XTETES TUBERCULATUS, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleoz. 
(Arch. du Mus., vol. v), p. 268, pl. xix, figs. 3, 3a, 1851. 
RuriNopora TuBnRcULOSA? J. Hail, Paleont. of New York, vol. ii, p- 170, pl. 40 8, fig. 4, 
1852. 
Corallum very thin, incrustating. Tubercles much compressed, elongated in the same 
longitudinal direction, rather prominent, about one line in length, one half more in breadth, 
and set at a distance from each other equal to about twice their breadth; the top of these 
tubercles is rather compact. Calices somewhat unequal in size and in form; those that 
are placed on the tubercles being rather larger than the others, and about one third of a 
hne in breadth. ; 
Found in the upper Silurian rocks of Dudley. Professor M‘Coy has met with it in the 
upper Ludlow rocks of Brigster, Kendal, Westmoreland ; at Coniston, Lancashire; and at 
Firbank, Sedbergh, Kendal. It exists also in the blue limestone of Cincinnati, Springfield, 
and Lebanon, in Ohio. 
Specimens are in the Collections of Mr. Fletcher of Dudley, and of M. de Verneuil 
at Paris. 
This species much resembles JZ. mammulata,’ in which, however, the tubercles are 
more prominent, more elongated, and more irregular. Ionticulipora Dalei* is also very 
closely allied to the above-described species, but differs from it by its dendroidal form, and 
its small round tubercles. 
1 Chetetes Panderi, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleeoz., p. 265, 1851. 
2 Chetetes mammulatus, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleoz., p. 267, 
pl. xix, fig. 1. 
5 Chetetes Dalei, ibid., p. 266, p. xix, fig. 6. 
