Patwozotc Corals in the British Museum. 473 
the minuteness and dual character of its corallites and in its 
monticulose surface. From the Monticuliporide it is separated 
by the possession of mural pores. 
We are acquainted at present with only one species. ‘This 
has been quite inadequately described, though well figured, by 
Quenstedt (whose specimens came from Dudley) under the 
name of Kavosites tnterpunctus. 
Favositella interpuncta, Quenst. sp. (Pl. XVII. figs. 1-1 f.) 
Favosites interpunctus, Quenstedt, Petref. Deutsch]. 1881, Abth.i. p. 10, 
t. 148. f. 9. 
Sp. char. Corallum of medium size, the largest measuring 
about 7 centim. in its greatest diameter and about 10 millim. 
in its greatest thickness, usually elongate, sometimes nearly 
circular, concavo-convex, rising above into irregularly rounded 
or lobate elevations, with thin slightly expanded margins. 
Base shallowly concave, covered with a concentrically 
wrinkled epitheca; usually attached to a shell or other 
foreign body, which seems, at least in some cases, to have 
governed the form assumed by the corallum. ‘The thin 
margins of the latter are sometimes contracted or folded 
inwards towards the object of attachment, so that their out- 
line exhibits an irregularly sinuous appearance. The tubes 
which compose the corallum are so minute as to be barely 
distinguishable, excepting in well-preserved specimens, with- 
out the aid of a lens; they open upon the upper surface, 
the small tubes forming groups about 5 millim. apart, ele- 
vated a little above the general level of the surface, so as 
to constitute faintly defined monticules. ‘The corallites, as 
seen in tangential sections, are irregularly rounded or sub- 
polygonal in outline, with thick walls. The smaller ones are 
intercalated at the angles of junction of those of larger size. 
The latter measure about one half, the former from about one 
tenth to one fifth of a millimetre in diameter. Longitudinal 
sections exhibit great irregularity in the walls of the corallites ; 
these are crinkled, with here and there a minute septum-like 
projection of the wall. The tabula of the larger tubes are 
very delicate, horizontal, or a little oblique, and slightly 
curved, and placed at from one to two tube-diameters apart. 
In the smaller cells the tabule are more numerous and are 
thickened with a fibrous layer of sclerenchyma. Mural pores 
of a large size, remote and irregularly disposed, are seen in 
these sections. 
Obs. The species above described occurs abundantly in the 
Wenlock Shales at Dudley, Worcestershire, associated with 
Ann. & May. N. Hist. Ser, 5. Vol, xii. dl 
