146 
CELLrLirOKA. 
Disteibtjtion. 
England : 
Chloritic Marl : Dunscombe. (Var. devonica.) 
Upper Greensand : Haldon. devonica.) 
Foreign : 
Cenomanian : Cap de la Ileve and Havre, Seine-Inferieure ; ? Le 
Mans ; ? near Tournay. 
Eigfres. 
Eig. 10a. Part of a yertical section across two layers of 
a zoarium of var. devonica, X 18 clia. Upper Greensand: Haldon. 
D. 5159. 
Fig. lOh. Part of a hoiizontal section across part of the same 
zoarium, X 18 dia. 
Cellulipora ornata, var. devonica : Fig. lOff, vertical, and Fig. lOi, horizontal 
section. 
Affinities. 
This species is the type of the genus. Its trivial name is 
a matter of uncertainty, which can only be settled by re-exami- 
nation of some of Michelin and Pomer’s types. I cannot avoid 
a strong suspicion that the Ceriopora mammillosa, Edm., of 
Michel in is the C. ornata of d’Orhigny, and that the Ceriopora 
liclieniformis of Michelin is the flat spongiosa form of the same 
species. The Ceriopora lahyrinthica of Michelin also presents 
affinities to this genus. Put Michelin’s figures, though the zoaria 
are suggestively like those of C. ornata, do not show sufficient of 
the zooecial characters for certain identification, and d’Orbigny’s 
name is accordingly retained. 
The var. devonica is well marked, and may he worthy of specific 
distinction. Its age is the same as the type form, and it may 
represent the same species with a smaller and ovoid zoarium. 
