from the Upper Greensand of Hunstanton. 181 
Bernericea contracta (Seeley). 
This species nearly resembles B. Clementina (D’Orb.), of which 
it is a good variety. It is attached, orbicular, and has the cells 
arranged like an expanded fan; they are very distinct and 
narrow, being about twice as long in proportion to their width as 
in B. Clementina, and contract from the point where they first 
appear to the aperture, which is very small. This tapering cha- 
racter of the cells suffices to distinguish it from all other forms. 
Proboscina dilatata (D’Orb.), var. 
This fossil is about intermediate between D’Orbigny’s figures 
of Idmonea dilatata and I. virgula, being nearer to the former. 
It appears to differ a little, too, im having the mouths more con- 
tracted. 
Cellulipora sulcata (Seeley). 
The form of the colony in this species is similar to that in C. 
spongiosa, with which it is most nearly related. It is similarly 
composed of undulating bosses and depressions. Each sub- 
colony is placed on a boss, from which the cells, which are de- 
pressed, not very distinct, rather wide, and contracted at the 
mouth, radiate. The intermediate spaces, which are thus in 
most cases depressed, and never elevated, are smooth, being formed 
of abortive cells. Diastopora Sowerbia (Lonsd.) belongs to this 
genus, and is nearly related and may even be this species ; but, 
from the important characters being overlooked in the description 
and figure, I cannot determine the point. 
Reptomulticava. 
A form nearly related to R. collis and R. mamilla, but irregular 
in growth, twice as high as wide, and twice the size of those 
species, more resembling D’ Orbigny’s Ceriopora digitata. The 
cells are more dense than in collis, and generally separated by 
walls so thin as to be hexagonal except at the contracted top, 
where they are distant, round, and protuberant. It is a common 
fossil, and may be marked R. favus. 
Chenendopora expansa (Benett), var. 
This fossil differs much from Miss Benett’s figure, being an 
elongated cone the cup of which extends nearly to the base; but I 
have Warminster specimens intermediate between the type and 
this fossil, which, I suppose, bears to it much the same relation 
as those lobed varieties of Hallirhoa which are united under the 
specific name costata (Lamx.) do to each other. 
Scyphia tessellata (Seeley). 
In form and general characters this species resembles S. er7- 
