BEEEXICEA. 
109 
Zooecia short and stout ; closely packed, 
raised and apertures crowded together, 
only at their distal ends. 
Dimensions. 
Diameter of zoarium 
Length of zooecia ... 
Diameter of zooecia 
Diameter of aperture 
Disteibetion. 
Lower Greensand : Farringdon. 
Figttees. 
PL YII. Fig. 4. Part of a zoarium, x 10 dia. Lower Green- 
sand : Farringdon. Old Coll. D. 5790. 
Affinities. 
This species is characterized by its short, thick, crowded zooecia, 
which appear sub-erect; the zoarium has therefore the aspect of 
a thin colony of the group which ^yaters has called the 
‘ Parallelata.’ A section, however, shows that the structure of 
the zooecia is typically Tubuliporidan. The nearest ally of this 
Pryozoan is B. regularis, var. gamhlei^ which has large, closely 
packed zooecia. 
Among Jurassic ‘ species ’ this form is most nearly allied to 
B. coartata^ in which, however, the zooecia are less crowded 
and the apertures further apart. 
The name of the ‘ species ’ refers to the thick form of the 
zoarium ; hut the most interesting feature in this Pryozoan is its 
tendency to grow in a series of zooecial groups, as if it were a very 
primitive form of Cellulipora. 
LIST OF SPECIMEI^'S. 
D 5790. A zoarium encrusting a valve of Terehratula. Lower Greensand. 
Farringdon. Old Coll. Figd. PL VII. Fig. 4. 
D. 3024. A zoarium encrusting a sponge fragment. Lower Greensand. 
Farringdon. Caleb Evans Coll. 
And three fragments of the same, with two sections of the base. 
Peristomes highly 
Zooecia are visible 
27 X 15 mm. 
’25--4 „ 
•2--3 „ 
•1--15 „ 
^ Cat. Jur. Bry. p. 108, pi. v. fig. 2. 
