10 
Transactions of the Society. 
appears to be identical with C. jprsegrande Lund., Desm. Suec., p. 54, 
pi. iii. f. 21. I have observed dt in Cumberland, Cornwall, and 
Hampshire. 
Zygnema peliosporum Wittr. was omitted from my list of species 
from North Cornwall, where it is not uncommon in bog-pools. I am 
not aware of its having before been gathered in these islands, except 
by Marquand in West Cornwall. It is not given in Cooke. 
Homospora mutabilis Breh, op. cit., 1888, p, 2, pi. i. f. 1. Has 
also been observed by Marquand in Cornwall. 
Acanthococcus anglicus mihi, tom. cit., p. 2, pi. i. f. 4. He Toni 
having pointed out that the name Acanthococcus, given to this genus 
by Keinsch, had been previously appropriated to a genus of Floridem, 
and proposed the substitute Glochiococcus, this species must now be 
known as Glochiococcus anglicus (De Ton.) Benn. 
