238 
ENTALOPHORA. 
Turonian: An^ouleme, Charente ; St. Rimay and Villardin, Loir-ct- 
Cher. 
Cenomanian : Schillin;;e, near Bilin, in Lower Plaiierkalk ; KutM-hlin, 
Bohemia, in Ilippuritenkalk ; Jiuc, in Korvcanor 
Schichten. (Var. koVniewtis.) 
Figures. 
PI. X. Fio;. 14. Pail of a branch of var. {nco)istann\ X 10 clia. 
Upper Chalk : Afton Downs, Isle of Wight. IVesented by 
A. Hinton, Es([. D. 2285. 
PI. X. Fig. 15. Part of a branch in the form henedeni \ x lOdia. 
Middle Chalk : ('hatham. Gamble Coll. D. 4351. 
PI. XI. Fig. 13. A branch of var. incomtam with gonoeciiim ; 
X 10 dia. ^riddle Chalk : Chatham. Vine (’oil. D. 4067. 
Fig. 25. Pail of a branch of var. inconstans with a longer 
gonoecium; X 12 dia. Middle Chalk : Chatham. Gamble (’oil. 
D. 4532. 
Affinities. 
This ‘ species,’ the first described of (’retaceous Entalophora:^ was 
founded by Goldfuss on a fragment from Maastricht which has 
fortunately been refigured by von Hagenow. The species differs 
from its nearest ally, E. echinata (Pom.), by the more regular and 
crowded arrangement of its apertures. The apertures are also les> 
highly raised. 
The English Chalk specimens have a narrow pirifonn gonoecium 
instead of an irregular large gonocyst: if this feature holds for 
the Continental representatives of the species, its difference from 
E. echinata is greater than the zooecial arrangement alone would 
suggest. 
The members of this species may be divided into four groups 
or varieties ; of these divisions, henedeni may include only worn 
specimens of the typical form. The form holinensis may be of 
specific value. 
Var. 1. typica. 
Varietal Ch.4.racters. 
Branches formed of many zooecia, a transverse section cutting- 
across about forty. 
Apertures small, circular, thin-lipped. 
GoncEcium ? 
