268 BRITISH FOSSIL CORALS. 
5. Montrcviipora? Bowrrsankt. Tab. LXIII, figs. 1, la, 14, le. 
FavositEs sPONGITES (pars), Lonsdale, in Murchison, Silur. Syst., p. 683, pl. xv dis, 
figs. 8c, 8d, 8e (cet. excl.), 1839. (Not the Calamopora 
spongites of Goldfuss.) 
Discopora squaMAta ? Ibid., p. 679, pl. xv, fig. 23. 
Cumretes? BowEersanki, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleeoz. 
(Arch. du Mus., vol. v), p. 272, 1851. 
The general form of this coral varies much at different ages. In young specimens it 
is massive, subspherical, and but slightly gibbose; but in older specimens the tuberosities 
appear to have risen up, so as to constitute cylindrical flexuous branches; and in a very 
large specimen these branches are ramose, very tall, numerous, and compose a caspitose 
mass. ‘The upper end of each of these branches is dilated so as to form a kind of round 
head, the surface of which does not present any tubercles, and is occupied by closely set 
subpolygonal slanting calices that are about one fifth or two fifths of a line in 
diameter, and much resemble those of Alveolites, but are deprived of septal processes. 
From Much Wenlock, Benthall Edge, Dudley, Walsall, and, according to Mr. Lonsdale, 
Hurst Hill, Sedgley. 
Specimens are in the Collections of Mr. Bowerbank, Mr. Fletcher, and M. de Verneuil. 
‘The ill-preserved fossil, from Desertcreat, which Mr. Portlock has represented under 
the name of Fuvosites polymorpha,’ appears to be referable to this species, which is 
remarkable for the slight difference of size between its calices, the lozenge form of these, 
and its general aspect. 
6. MonTICULIPORA EXPLANATA. 
NEBULIPORA EXPLANATA, M‘Coy, Ann. and Mag. of Nat. Hist., 2d series, vol. 6, p. 283, 
1850.—Brit. Paleeoz. Foss., p. 23, pl. ic, fig. 6, 1851. 
“Corallum forming very thin, irregularly expanded laminz, upwards of two inches 
long, covered above with nearly regular, quincuncially arranged, flat or slightly depressed, 
nebular clusters of larger tubes, about one and a half lines in diameter, and rather less 
than twice their diameter apart (about twelve or fourteen cells between one centre and the 
next) ; smaller intermediate tubes about six in one line. 
“Coniston limestone, Coniston, Lancashire; limestone of Applethwaite Common, 
Westmoreland.” M‘Coy, op. cit. 
' Report on the Geol. of Londonderry, &c., p. 326, pl. xxi, fig. 2a. 
