306 HISTORY OF BRITISH ZOOPHYTES. 
5. Lepraria stmpiex, G. C. Hyndman. 
Hab. On various bivalve shells dredged at Sana Island, 
Mr. Hyndman, apparently not rare. 
This resembles L. hyalina, but it is more bunchy, and it 
has a raised and somewhat thickened rim. There is a blunt 
knob behind the margin of the upper lip. 
6. Lepratta ventricosa, A. H. Hassalt. 
Hab. Dublin Bay, Mr. Hassall; Cornwall, on old bivalve 
shells, Mr. Peach; Newhaven, Dr. Greville; Sana Island, 
Mr. Hyndman; near Irvine, D. L. 
I have a good specimen of this, got at Newhaven by Dr. 
Greville, which has enabled me to name a specimen got on 
the inside of an old Buccinum undatum, betwixt Saltcoats 
and Irvine. The colour, like that of Dr. Johnston’s and 
Dr. Greville’s, is greyish-white ; whereas Mr. Hassall’s spe- 
cimens, when dry, were brownish and glistening. The 
cells are ovato-globose, narrowed anteriorly, with a mucro 
in the centre of the proximal margin. Capsules globular 
and roughish. 
7. Lepratia HynpDMANNI. 
Hab. On the inner surface of an old shell of Pecten 
opercularis, and on other shells, dredged at Sana Island, 
Mr. Hyndman. 
