62 BRITISH FOSSIL CORALS. - 
cost are granular either in series of one or of two rows, whilst the lower present many 
irregular rows. ‘The cross bars of the exotheca are numerous. 
Height of corallum 2 inches. Diameter of calice ths inch. 
Locality.—Bracklesham. In the Dixon Collection in the British Museum. 
This species, very closely allied to D. dendrophylloides, is distinguished from it by the 
habit of growth, by there being multi-granulose coste, and by the development of the 
higher orders of the septa. 
Section—VWADREPORARIA PERFORATA. 
Famity—MADREPORID. 
Sub-family—TvuRBINARINA. 
Genus—DENDRACIS. 
Dendracis—generic characters.’ 
Corallum arborescent; coenenchyma very dense, granulated on the surface ; calices 
submammiform ; no columella; septa few in number and barely exsert. 
Drnpracis Lonspauei, Duncan. Plate X, figs. 11—14. 
The corallum consists of stems branching laterally, both the stems and branches 
being nearly cylindrical. 
The coenenchyma is very abundant, is covered with blunt conical dentations, and the 
calices are rare, but slightly elevated, and very small. ‘The calices seem to be defects 
in the coenenchyma rather than independent structures. They are wide apart, circular, 
shallow, and have no columella. The septa are twelve in number, very large at the 
margin, and every other one has a thin continuation which passes inwards. ‘The central 
space is deep. ‘There are no coste (fig. 12). 
The transverse section of a stem shows its cellular nature, and that it consists of 
superimposed ccenenchymal cells (fig. 13). 
Diameter of stems 2ths inch. Diameter of calices 3th inch. 
Locality. Bracklesham. In the Dixon Collection in the British Museum. 
The wide apart and rare calices, and the strongly echino-dentate ccenenchyma, dis- 
tinguish this species from the Dendracis Gervillii, Defrance, sp. 
The new species is attached to the under part of the base of Lonsdale’s typical 
specimen of Porites panicea described in Dixon’s ‘ Geology of Sussex’ (pl. i, fig. 7). 
1 ‘Hist. Nat. des Corall.,’ vol. iii, p. 169. 
