li BRITISH FOSSIL CORALS. 
2. Genus ENDOPACHYS. 
(Pars) Lonsdale, Journ. of the Geol. Soc. of London, vol. i, p. 214, 1845. 
Corallum simple, free, and organized as in the preceding genus, but much compressed 
towards its basis, which is carinate, and continued laterally into two vertical lobiform or 
cristate expansions. Calice arched ; fossula long and narrow. 
Typ. sp., Endopachys Maclurii, Milne Edw. and J. Haime, Ann. Se. Nat., vol. x, tab. i, fiz 1; Tur- 
binolia Maelurii, Lea, Contrib. to Geol., tab. vi, fig. 206. 
3. Genus BALANOPHYLLIA. 
Searles Wood, Ann. and Mag. of Nat. Hist., vol. xiii, p. 11, 1844. 
Corallum simple and adherent, sub-pediculate, or sub-cylindrical, with a very broad 
basis. Columedla well developed, but not projecting at the bottom of the fossula. Septa 
thin, and closely set ; those of the last cyclum well developed, and complete in number. 
Coste narrow, crowded, and nearly equal; no mural expansions. 
Typ. sp., Balanophyllia caliculus, Searles Wood, loc. cit. 
4. Genus HETEROPSAMMIA. 
Milne Edw. and J. Haime, Ann. Sc. Nat., 3° serie, vol. x, p. 89, 1848. 
Corallum simple, adherent, and growing by its basis so as to cover completely the 
shell on which it is fixed, and to assume the appearance of being free. Calice smaller 
than the basal part of the corallum. Colwmella well developed. Septa thick, slightly 
exsert, and closely set. MWad/s not having distinct costae, but presenting small strice or 
small papilla, composed of minute granule, and arranged in an irregular manner. 
Typ. sp., Heteropsammia Michelinii, Milne Edw. and J. Haime, loc. cit., p. 89. 
5. Genus LEPTOPSAMMIA. 
Milne Edw. and J. Haime, loc. cit., p. 90, 1848. 
Corallum simple, adherent. Calice elliptical. Co/umella much developed, and 
projecting at the bottom of the fossula. Sep/a neither exsert nor crowded, very thin, and 
presenting scarcely any granulations ; those of the fifth order rudimentary. /Va//s thin and 
translucid. Coste distinct from the basis, and formed by series of small granule. 
Typ. sp., Leptopsammia Stokesiana, Milne Edw. and J. Iaime, loc. cit., tab. i, fig. 4. 
6. Genus ENDOPSAMMIA. 
Milne Edw. and J. Haime, loe. cit., p. 91, 1848. 
Corallum simple, erect, and adherent. Calice circular. Columel/a much developed, 
hut not projecting. Septa thick, strongly granulated, and slighty exsert, forming four 
cycla, the last of which is almost rudimentary. Wai/s covered with an indistinct pellicular 
epitheca, and having broad, straight costee. 
Typ. sp., Endopsammia Philippensis, Milne Edw. and J. Haime, loc. cit., tab. i, fig. 5. 
