ENTALOPHOEA. 
229 
Foreign : 
Senonian — Maastrichtian : Maastriclit. 
Campanian : Riigen. 
Coniacian : Les Roches, Loir-et-Cher, in Craie de Villedieii. 
Turonian : Yillardin, Loir-et-Cher, in Craie marnense. 
? Cenomanian : Tillers, Calvados ; Le Mans, Sarthe. (Form carantina.) 
Figure. 
PI. X. Fig. 8. Part of a zoarium, x 10 dia. Middle Chalk : 
Chatham. Tine Coll. D. 648. 
Afeinities. 
This ‘ species ’ is characterized by its paired apertures and flat- 
faced zooecia. It differs from £. virgula in both characters, but 
belongs to that group of ‘ species.’ It is allied to vassiacensisy 
Orb., by the linear ornamentation and flat-facing, but in the 
Xeocomian form the apertures are distributed with fair uniformity 
over the zoarium, and not grouped in pairs. 
The most difficult question in the synonymy of this form is 
whether Eatalopliora carantina^ Orb., should be included. Pergens 
has regarded that ‘ species ’ as a synonym of E. prohoscidea. 
But d’Orbigny’s figures show a bigeminal arrangement of the 
peristomes, and when two pairs happen to occur at the same 
level, an almost Spiroporan form results. Several of the 
Chatham specimens have the subspiroporiform arrangement. 
D’Orbignj^’s figures, however, represent the zooecial walls as 
well rounded, and not fiattened; and without an opportunity of 
examining his type, it is not safe to express any positive opinion. 
LIST OF SPECIMENS. 
British. 
D. 648. A zoarium (on slide). Middle Chalk. Chatham. Vine ColL 
Figd. PI. X. Fig. 8. 
D, 377. Two subverticillate fragments (on slide) . Middle Chalk. Chatham. 
Gamble Coll. 
D. 646. A specimen of the typical form (on slide). Middle Chalk. Chatham. 
Tine Coll., Xo. 39«. 
D. 647. Three fragments of the suhverticillate form (on slide). Middle 
Chalk. Chatham. Vine Coll., Xo. 39. 
D. 649. Three fragments (on slide). Middle Chalk. Chatham. Vine 
Coll., Xo. 395. 
D, 3282. A fragment of the suhverticillate variety. Upper Chalk Powder. 
Between Black Head and Gohbin, Magee Island. Presented by 
Jos. Wright, Esq. 
