54 
PEOBOSCINA. 
Affoities. 
This ‘ species ’ is most nearly allied to F. sarthacemis, but it 
differs by having much larger zooecia. The zooecia are also 
shorter, and the peristomes crowded together. It agrees with 
P. cornucopice in the last character, but is easily distinguished 
by the small size of the zooecia in that ‘ species.’ In the 
typical Cenomanian form the zoarium is simple and consists of 
a Berenicoid expansion. In the Senonian yaiiety the zoarium is 
branched, and usually consists of long bands, irregular in width. 
a. Proboscina bohemica, Xov., var. typica. 
DliTEXSIONS. 
Length of zooecia 
Diameter of zooecia 
Diameter of aperture ... 
DrSTRIBUTIOX. 
England : 
Upper Chalk— Zone of Aetinocamax quadrat ua : East Ilarnham, Wilts. 
Red Chalk : Hunstanton. 
Foreign : 
Cenomanian : Gross-Ujezd, Bohemia, in Iser Schichten ; Line, 
Eamajk, and Kank, Bohemia, in Eorycaner Schichten. 
Novak. B.M., D. 4316. 
*5 mm. ... *5 mm. 
•25 ,, ... *25 
•12 „ ... -1 „ 
FicrRE. 
PI. IV. Fig. 2. A zoarium encrusting an Exogyra^ sp. Zone of 
Aetinocamax quadratus : East Harnham, AVilts. Gamble Coll. 
Tine’s P. hohemica^ var. delicatula. D. 4316. 
LIST OF SPECIMENS. 
D. 4316. An irregular zoarium encrusting an Exogyra, sp. Zone of 
Aetinocamax quadratus. East Harnham, near Salisbury. Gamble 
Coll. Vine’s var. delicatula. Figd. PI. IV. Fig. 2. 
D. 2031. On Terehratula biplicata. Red Chalk. Hunstanton. Lesson Coll. 
Figd. by Vine, 1890 : Quart. Joum. Geol. Soc. vol. xlvi. pi. xix. 
fig. 9. A badly preserved specimen. 
D. 2023. A young specimen on an Itioceramus, sp., with Berenicea folium, 
Nov. Red Chalk. Hunstanton. Lesson Coll. Vine’s type of 
P. claviformis. Recorded as P. subelegans, Vine : Quart. Lourn. 
Geol. Soc. vol. xlvi. p. 470, No. 13a. 
