164 



CERIOCAVA. 



Ceriopora pustulosa, M'Coy, 1854, Contrib. Brit. Pal. p. 66. 



Morris, 1854, Cat. Brit. Foss. ed. 2, p. 120. 



Friren, 1893, Bry. ool. inf. Metz : Bull. Soc. Hist. nat. 



Metz, ser. 2, t. vi. p. 59. 



Monticulipora D'Orbigny, 1849, Prod. Pal. t. i. p. 323. 

 Nodicava D'Orbigny, 1852, Pal. fran9. Terr. cret. t. v. p. 1014. 



Pictet, 1857, Traite Pal. ed. 2, t. iv. p. 159. 



Heteropora ,, pars, Brauns, 1879, Bry. mittl. Jura Metz : Zeit. deut. geol. 

 Ges. Bd. xxxi. p. 336. 



DIAGNOSIS : 



Zoarium dendroid, erect; growing in thick, solid branches, 

 which anastomose occasionally. The branches are regularly cylin- 

 drical or compressed (form dumetosa). The surface is level, or 

 raised into pustules (var. pustulata). 



Zocecia thin- walled ; diaphragms numerous. Aborted zooscia 

 scattered irregularly through the zoarium. 



FIG. 13. Longitudinal section of zoarium of Ceriocava corymbosa (Lamx.) to 

 ahow central axis and marginal zooecia. X 10 dia. Bathonian Calcaire 

 apolypiers: Ranville. 60233. 



DISTRIBUTION. 



ENGLAND : 



Cornbrash: Thornboro', Bucks. 

 Great Oolite : Bath. 



FOREIGN : 



Bathonian Calcaire a polypiers : Eanville and Bernieres, in 

 Calvados. 



LIST OF SPECIMENS. 



D. 2149. Cornbrash. Thornboro', Bucks. Brodie Coll. 

 ? D. 33, D. 39. Fragments on slides. Great Oolite. Ancliff, Bath. Cunning- 

 ton Coll. 

 D. 2264. Bathonian. Loc. ? Holl Coll. 



