PiiOBOSCINA. 
57 
12. Proboscina elevata (d’Orbigny), 1853. 
Synonymy. 
Reptotubigera elevata, d’Orbigny, 1853. Bry. Cret. p. 155, pi. 760, figs. 1-3. 
Stomatopora ,, Pergens, 1890. Eevision, p. 333. 
,, ,, Bucaille, 1890. Bry. Seine-Inf. : Bull. Soc. Sci. nat. 
Eouen, vol. xxv. p. 510. 
,, ,, Pergens, 1893. Bry. St. Pat. : Bull. Soc. beige Geol. 
vol. vi. p. 203. 
Tubulipora cenomana, d’Orbigny, 1851 and 1854. Bry. Cret. p. 833, pi. 631, 
figs. 3-5. 
Diagnosis. 
Zoarium short and simple ; beginning as a narrow uniserial or 
biserial band, and rapidly expanding to a multiserial colony. 
The zoarium is typically piriform in outline. The zoarium 
is very thick at the distal end owing to the height of the 
crowded zooecia. 
Zooecia long and bent. In the young portion of the. zoarium 
they are seen throughout their length ; but in the distal end 
only the peristomal portions are seen. 
Dimensions. 
Length of zoarium 
Width of zoarium 
Thickness of zoarium 
Diameter of zooecia 
Diameter of aperture 
Disteibijtion. 
England : 
Middle Chalk : Chatham. 
Foreign : 
Senonian — Maastrichtian : Meudon ; Ste. Colombo, Manche. 
Santonian : Saintes, Charente-Inferieure ; St. Paterne, 
Loir-et-Cher ; Beauvais, Oise. 
Coniacian : Tours, Indre-et-Loire. 
Turonian : Moutier, Charente ; Yillardin, Loir-et-Cher. 
Cenomanian : Le Mans, Sarthe. 
Figtjee. 
PI. lY. Pig. 3. The distal end of a zoarium attached to a 
fragment of Inoceramus. Middle Chalk : Chatham. X 12 dia. 
Gamble Coll. D. 4148. 
Pergens. 
1-2 mm. 
•2 „ 
• 10--12 ,, 
B.M., D. 4148. 
4 mm. 
1-5 „ 
1 
•17--25,, 
•08 ,, 
