ENTALOPHORA. 
2,^7 
Jvitalophora inconstans, d’Orbigiiy, 1S53. Rrv. Cret. p. 786, pi. 7o4, 
figs. 1-5-17. 
,, ,, Pergeiis k Meuuier, 1886. Bry. gar. Faxe : Ann. Soc. 
roy. mal. Belg. vol. xxi. p. 204. 
,, I'oUnoisis, Xovak, 1877. Bry. bohm. Kr. : Deuk. Ak. "Wiss. 
'NVien. vol. xxxvii. pt. 2, p. 109, pi. vii. figs. 11-13. 
,, ,, Bocta, 1892. Mecb. Koryc. Hory: Ceska Ak. Fr. Jos. 
Braze, sect. ii. p. 33. 
])lAGNOSIS. 
Zoarium of cylindiical dichotonious brandies. The apertures 
are crowded and quincimcial or subquinciincial ; they occur in 
a more or less regular spiral. 
Peristomes in well-preserved specimens well raised. 
Gonoecium (? in all forms) simple and piriform; from two to 
four times the length of the zooecia. 
Fig. 25 . — Bart of a branch of var. inconstans with a long gonoccinra ; x 12 dia. 
Middle Chalk : Chatham. D. 4532. 
Distribution. 
British : 
Upper Chalk : Alton Downs, Isle of Wight. (Var. inconstans.) 
Middle Chalk : Chatham. (Yar. inconstans.) 
Foreign : 
Danian : Faxoe. 
Senonian — Maastrichtian : Maastricht ; Falkenberg ; Ciply ; Meudon ; 
Royan, Charente-Inferieure; Fecamp, Seine -Inferieure. 
Campanian : Rugen. 
Santonian : L’ Arche de Leves ; Cachembach. 
Coniacian : Vendome and Les Roches, Loir - et - Cher ; 
Sainte Paterne, Luynes, and La Ribochere, Indre-et- 
Loire. 
