LEPRALIA. 315 
18. Lepratia FrieuLaris, C. W. Peach. 
Hab. On an old bivalve shell, Cornwall, Peach. 
Cells barrel-shaped, flattened on the upper side, which is 
crossed by small punctures and surrounded by large ones. 
Thought to be allied to LZ. annulata. 
19. Lepratia Brroris, W. Thompson. 
Hab. On Ascidia, Strangford Lough, and on old shells, 
W. Thompson; on Pecten maximus, dredged at Larne, R. 
Patterson; on a floated piece of the bark of a tree, coast 
of Ayrshire, D. L. Mrs. Gatty finds a pretty transparent 
variety on Ph. rubens, at Sidmouth. 
This is a pretty well marked species. The cells are punc- 
tured round the sides and near the mouth, leaving the 
middle part smooth, where above the mouth there is a half- 
moon-shaped hole. The mouth sometimes has a spine 
on each side; Mr. Peach has found it with three spines 
on the under lip. The capsules are globose, white and 
smooth. 
20. Lepratta Pracutu, C. W. Peach. 
Hab. On stones and shells, Cornwall, Peach; dredged 
off Sana Island, Mr. Hyndman; on old shells, coast of 
Ayrshire, D. L. 
~The cells are globose, perforated by oblong punctures, 
