310 HISTORY OF BRITISH ZOOPHYTES. 
“‘ Perhaps the typical form of L. granifera may be con- 
sidered to lie between these two extremes. The extreme 
variety, 8, lies flat to the seaweed, and is cut into a finely 
marked diamond pattern, round the four-sides of which are 
a row of dots or punctures. There is also an opening below 
the mouth. The side dots rarely extend over the rest of 
the cell, but as they occasionally do so, and the species 
correspond in other particulars, it has not been thought 
reasonable to separate this beautiful variety from L. grani- 
fera. The pure transparency of the cell in its young con- 
dition—varied by a thicker line, which marks out its dia- 
mond shape, and in which lie the row of dots—makes it a 
very pretty object. It is so glassy in its texture that the 
colour of the red Phyllophora can be distinguished through 
the cell. As it advances in age, the opening below the 
mouth looks as if it was on a raised knob, and the flat 
appearance of the cell is gone. 
“The figure of var. a represents its extreme state in which 
the side horns and the heavy knob are so prominent as to 
be the leading features of the species. In modified instances 
the front protuberance is lower, and the horns less distinct. 
It is still, however, a very remarkable variety.” | 
13. Lepratia Lanpsporovi, Dr. Johnston. 
