232 
ENTALOniOUA. 
Dimensions. 
B.M. 
B.M. 
B.M. 
B.M. 
D. 6o7. 
D. 2613. 
D. 2612. 
D. 3108. 
mm. 
mm. 
mm. 
mm. 
Diameter of a hrancdi ... 
1-3 
1 
•68 
•53 
Diameter of zomcia 
•12-'18 
•18, -20, k *24 
•08--18 
•2 
Diameter of aperture ,.. 
•04--08 
•08--12 
•04--1 
•07 
Distance of apertures ... 
— 
•6--10 
•3--6 
•6-1-0 
Disteibution. 
British : 
Upper Clialk : Magee Island, Ireland ; Kent. 
Middle Clialk : Cliatliam. 
Foreign : 
Dauian : Faxoe. 
Senoiiian — Maastrichtian : Meudon : Fecamp, Seine - Inferieure ; 
Chateaudun ; Boyan, Charente- Inferieure. 
Santonian : Saiutes, Charente- Inferieure. 
Coniacian : Lisle, Vendunie, Les Roches, etc., Loir-et-Cher ; 
Joue and Tours, Indre-et-Loire. 
Turonian : Saint Germain, near Fleche, Sarthe ; St. Rimay, Loir-et- 
Cher ; Saxony, in Upper Rlaner. 
Albian : Grand Pre, Ardennes. 
Cenomanian : Plaiien, Saxony ; K ink, Bohemia, in Korycaner 
Schichteu. 
FiorEEs. 
PI. X. Fig. 10. Upper part of a subclavate zoarium with a 
gonocyst, and with especially large apertures ; X dia. Middle 
Chalk : Chatham. Tine Coll. D. 657. 
PI. X. Fig. 11. Part of a cylindrical hraneh with a smaller 
gonocyst ; X 25 dia. Middle Chalk : Chatham. Vine Coll. 
D. 2612. 
PI. X. Fig. 12. Part of another specimen with similar gonocyst , 
and the zoarium appearing from wear somewhat longitudinally 
striated; X 15 dia. Middle Chalk: Chatham. Tine Coll. D. 2613. 
PI. X. Fig. 13. A suhclavate hraneh, with the surface much 
worn and the interzooecial sutures all apparent; X 15 dia. Chalk: 
Kent. Bowerhank Coll. D. 3108. 
PI. XI. Fig. 17. A thin branch showing passage from the 
striated to the unstriated condition ; x 1 1 dia. Middle Chalk : 
Chatham. Gamble Coll. D. 4066. 
PI. XI. Fig. 1. Base of a zoarium, X 7 dia. Middle Chalk: 
Chatham. Gamble Coll. D. 4209. 
