CEEIOPORA. 
167 
6. Ceriopora ramulosa (Michelin), 1846. 
Synonymy. 
ChcBtetes ramulosus, Michelin, 1846. Icon. Zooph. p. 202, pi. H. fig. 5. 
Ceriopora ramulosa^ d’Orbigny, 1850. Prod. Pal. vol. ii. p. 184. 
„ {Ceriocava) ramulosa, Pergens, 1890. Rev. p. 387. 
Ceriocava ramulosa, d’Orbigny, 1854. Bry. Cret. p. 1017, pi. 788, figs. 11, 12. 
non ,, ,, Gamble, 1896. Cat. Bry. Chatham, p. 4. 
,, mamillaris, d’Orbigny, 1854. Bry. Cret. p. 1018, pi. 788, figs. 13, 14. 
? ,, ,, Peron, 1888. Hist. Craie S.E. Bassin Anglo-Parisien : 
Bull. Soc. Sci. nat. Yonne, vol. xli. p. 264. 
Ceriopora ,, Bucaille, 1890. Bry. Cret. Seine - Inf. : Bull. Soc. Sci. nat. 
Rouen, vol. xxv. p. 507. 
Diagnosis. 
Zoarium of large, thick dichotomous branches, which are widely 
spreading. The branches range up to 30 mm. in diameter 
{fide d’Orbigny). 
Apertures crowded, irregular in shape, and sometimes sub- 
trigonal. 
'Distribution. 
Britism : 
Upper Greensand : Warminster. 
Upper Greensand (Albian) — Zone of Schloenbachia rostrata : Haldon Hill, 
Devonshire. 
Foreign : 
Senonian — Zone of Micraster breviporus : Villecien {Jide Peron). 
Cenomanian : Le Mans, Sarthe ; Cap la Heve, near Havre ; Mazorgues, 
Var (horizon d’Orhigny, 1850); MontronandMareuil, 
Dordogne. 
Affinities. 
C. mamillaris is probably the young form and C. ramulosus the 
adult. • 
LIST OF SPECIMENS. 
D. 7298. A small branch, 6 mm. long and 3 mm. across at its hilohed end, and 
a broken fragment. Upper Greensand. Warminster. Old Coll.* 
D. 7427. A zoarium rising from a thin base, 14mm. across; the first stalk is 
7 mm. in diameter ; the branches are aU given off from one side of 
the curved primary stem ; the lowest branch is simple ; the second 
branch has two blunt branches on the upper side, and is 12 mm. 
long. The height of the zoarium is 32 mm. The specimen is 
a siliceous pseudomorph, and the surface has been destroyed so 
that the identification is somewhat doubtful. Albian — zone of 
Schloenbachia rostrata. Haldon Hill, south-west of Exeter. 
Bequeathed Vicary Coll., 1903. 
