166 
CEISINA. 
DlSTEIBUTrON. 
England : 
Upper Chalk : Bromley. 
i\Iiddle Chalk : Chatham. 
Foreign : 
Seuonian — ^laastrichtian : Sainte - Colombe, Blanche ; Meudon ; 
Chapet, Seine-et-Oise ; Royan. 
Santoiiian : Salutes ; L’Arche de Leves. 
Coninciaii : Tours, St. Patenie, and June, Indre-et-Unre ; 
Vendome, Lisle, and Villetlieu, Loir-et-Cher ; in Craie de 
Villedieu. 
Turonian : Angonleme ; Merpins ; Marti^ues, Bouches-du-Rhonc ; 
I>avardiu and Villavard, Loir-et-Cher. 
Figuees. 
PL IX. Fig. 6. Part of a zoariiim, X 10 dia. MicRllc Chalk: 
Chatham. Vine Coll. D. 969. 
PI. IX. Fig. 7. Kt'verse side of another specimen on the siime 
slide, X 10 dia. Middle Chalk : Chatham. Vine Coll. D. 969. 
Affinities. 
This species agi’ees in the general character of its zoarium with 
Tervia dorsata (Hag.), but it has no unpaired a])eii:iu’es, and more 
regular triangular or subtriangular branches, and more apertui'es 
in the transverse series. 
LIST OF SPECIMENS. 
British. 
D, 969. Three fragments of zoaria (on slide). Middle Chalk. Chatham. 
Vine Coll., Xo. 24, Xo. og. Figd. PI. IX. Figs. 6 and 7. 
D. 4473. Three fragments of var. lata (on slide). Upper Chalk. Bromley. 
J. Simmons Coll. 
D. 4229. One zoarium showing reverse face (on slide with four indeterminable 
fragments). Middle Chalk. Chatham. Gamble Coll. 
Foreign. 
D. 2905. Several fragments (on slide). Senonian : Maastrichtian. La Mare, 
Chapet, Seine-et-Oise. Presented by Prof. T. R. Jones, F.R.S. 
UXEEPRESEXTED AND DOUBTFUL SPECIES. 
1. angulosa (d’Orbigny), 1853. 
Syn. Idmonea angulosa, d’Orbigny, 1853. Bry. Cret. p. 735, pi. 748, 
figs. 11-15. 
Pergens & Mennier, 1887. Bry. gar. Faxe : Ann. 
Soc. mal. Belg. vol. xxi., Mem. p. 212. 
Pergens, 1890. Revision, p. 343. 
