36 BRITISH FOSSIL CORALS. 
seven lines ; long axis of the calice, three lines and a quarter ; short axis, two lines; depth 
of the fossula, two lines. 
This species belongs to the section of the fixed Balanophylliz, and is consequently 
easily distinguished from B. prelonga’ and B. Gravesii,’ which are only sub-pedicellate. 
The nakedness of the wall, and quite rudimentary state of the epitheca, distinguishes it 
also from B. calyculus, B. verrucaria,* and B. cylindrica’ In B. geniculata’ and 
B. Cumingii’ there are but four cycla of septa, whereas in the above-described fossil there 
are five cycla. It differs from ZB. italica® by its elongated and compressed form, from 
B. Bairdiana by its exsert septa, and from B. tenuistriata by the compressed form of its 
lower part, and the thickness of its principal costa. It resembles most this last-mentioned 
species, which belongs to the Calcaire grossier of the Parisian basin. 
Balanophyllia desmophyllum is found at Bracklesham Bay, and has been communicated 
to us by Mr. Dixon and Mr. Frederick Edwards. 
3. Genus DENDROPHYLLIA (p. Ini). 
DENDROPHYLLIA DENDROPHYLLOIDES. ‘Tab. VI, figs. 2, 2a, 26, 2c. 
OcULINA DENDROPHYLLOIDES, Lonsdale, in Mr. Dixon’s manuscript work on the Chalk 
Formations and Tertiary Deposits of Sussex. 
DENDROPHYLLIA DENDROPHYLLOIDES, Milne Edwards and J. Haime, Aun. des Se. Nat., 
3° série, vol. x, p. 102, 1848. 
Corallum composite, appearig usually to have incrusted the stem of some marine 
plant which has been destroyed during the process of fossilization. Gemmation irregular. 
Corallites short, very unequal in size, rather closely set, united by their basis, and free 
down to a variable distance from the calice, so as to project more or less on the surface of 
the common mass, or even to form acertaim number of somewhat ramified branches (fig. 2). 
Coste delicate, numerous, closely set, almost equal in breadth, composed of a row of 
uregular, conical granule, havmg a sub-vermiculate appearance, and becoming more 
irregular and more flexuous in the parts where they unite with those of neighbouring 
corallites (fig. 24). Mural pores large, and very distinct near the calice, but ceasing to be 
so lower down, where the tissue of the wall becomes very compact. Cadices regularly cir- 
cular, with the edge rather thin, and the fossula infundibuliform, but not deep.  Col/wmella 
spongiose, not much developed, and appearing to be but slightly prominent at the bottom 
of the fossula. Sepda forming four complete cycla, and sometimes a rudimentary incomplete 
fifth cyclum; very thin, unequal, not exsert, or only very slightly so, and granulated 
' Michelin, Icon., tab. ix, fig. 2. * Michelin, Icon., tab. xlii, fig. 7. 3 See tab. i, fig. 3. 
* Milne Edwards and J. Haime, Ann. des Se, Nat., 3"° série, vol. x, tab. i, figs. 6, 6 a. 
> Michelin, op. cit., tab. viii, fig. 15. 
® D’Archiac, Mém. de la Soc. Géol., 2™* serie, vol. ii, tab. vii, fig. 7. 
7 Milne Edwards and J. Haime, loe. cit., fig. 8. 8 Michelin, loe. cit., tab. ix, fig. 15. 
