‘winded’! "tea oS 
CYATHOPHYLLUM, 261 
to consist of thin transverse partitions, constituting a series 
of chambers. 
Tn the compound Cyathophylla, the germs of young cells, 
occupying the disc of a parent cell, are often met with. 
— 
Sa 
I) 
Ani 
Rains 
iin 
| i) 
Lien. 87. CoRALS FROM THE DuDLEY LIMESTONE. 
(Sil. Syst.) 
Fig. 1.—CYATHOPHYLLUM TURBINATUM: an oblique longitudinal section, 
showing at a@ the transverse lamelle, or cells, of the internal 
structure. 
2.—The same species. 
3.—CYATHOPHYLLUM DIANTHUS: aspecimen, with four young germs 
arising from the disc below. 
4.—The same species, with four adult cells. 
fig. 3 represents a group of four germs on the parent cell, 
_of C. dianthus, a common and beautiful coral of the Dudley 
"limestone. 
These corals are also prevalent in South Devonshire, and 
| many of the elegant marbles of Babbicombe are figured by 
the sections of these polyparia.* 
Associated with the Cyathophylla in the Silurian rocks, 
are certain corals that attain considerable magnitude, and 
which are principally distinguishable by their internal struc- 
ture. Such are Cystiphyllum, constructed of bladder-like 
* Cyathophyllum turbinatum, Pict. Atlas, pl. xxxvi. 
—— fungites, ibid. pl. xxxviii. 
