62 
OSCULIPORID^. 
Diagnosis. 
Zoarium of simple branches (which rarely subdivide), free distally, 
but proximally it may be adnate, and the base may be sub- 
circular. The reverse face is rounded in the free portions, 
but elsewhere flat ; it is marked by well-developed inter- 
zooecial depressions. 
Peristomal fascicles crowded and subalternate ; each fascicle is 
transversel}" elongate, the series extending almost to the 
reverse side. Each bundle contains from ten to sixteen el- 
even twenty apertures. 
Dimensions. 
i 
Von 
Ilagenow’s 
type. 
B.M. D. 13S6. 1 
B.M. 
D. 3373. 
Fig. 22, 
p" 61. 
PI. VI. 
Fig. 2. 
Id. VI. ! 
Fig. 3. 
1 
mm. 
mm. 
mm. 
mm. 
Length of stem 
6-5 
10 
10 
6 
Diameter of branch at base . . . 
1-2 
1 
1 
1-5 
Maximum 
1-6 
2-5 
2-5 
2 
Diameter of aperture ... 
— 
-1 
-1 
-1 
Diameter of peristomal fascicles 
-6x1-6 
1-0 X -5 
— 
1-7 X -3 
Diameter of base 
— 
— 
— 
5 
Distance of peristomal fascicles 
(measured from centres of 
two adjoining fascicles on 
same side) ... 
X 
1 
1 
-6-1 
Length of terminal fascicle ... 
1-2 
1 
2 
1 
— 
— 
Distribution. 
Danian : Ciply (upper part of “ tufeau de Ciply ”). 
Senonian — Maastrichtian : Maastricht ; Calcaire de Kuuraed (Ubaghs) . 
Eigures. 
PI. VI. Eig. 2. Eigure of obverse face of a ^oarium, complete 
except for the base ; X 4 dia. Maastrichter Kalk : Maastricht. 
Vine Coll. D. 1386. 
PL VI. Eig. 3. The basal part of another zoarium (on the same 
slide as specimen shown in Eig. 2) ; the figure shows the reverse 
and one side ; X 4 dia. Maastrichter Kalk : Maastricht. Vine 
Coll. D. 1386. 
