CHLAMYDOMYXA MONTANA. 233 
Chlamydomyxa montana, n.sp., one of the 
Protozoa Gymnomyxa. 
By 
E. Ray Lankester, M.A., LL.D., F.R.S., 
Linacre Professor in the University of Oxford. 
—_—- 
With Plates 14 and 15. 
I vo not know of any naturalist who has seen the beautiful 
Chlamydomyxa labyrinthuloides of Archer in a state 
of “ expansion ”’ since he described it in this Journal twenty- 
one years ago. Mr. Thisleton Dyer, now Director of Kew 
Gardens, saw it in its active streaming condition when Archer 
exhibited it at one of the meetings of the Dublin Microscopical 
Club five-and-twenty years ago. And the other members of 
that admirable band of naturalists saw it and testify to the 
correctness of Archer’s description and figures. 
Some seven years after the publication of his paper Archer 
sent both to me and (through Prof. Percival Wright) to Mr. 
Patrick Geddes samples of Sphagnum with the cysts of 
Chlamydomyxa attached to the fronds of the moss. I kept 
the specimens which I received in conditions which I hoped 
would favour the rupture of the cysts aud the out-crawling 
of the Chlamydomyxa-network, but entirely failed to obtain 
such a result. 
Mr. Patrick Geddes made a careful study of the cysts received 
by him, and wrote a very interesting article on them, accom- 
panied by a coloured plate, in this Journal, vol. xxii, 1882, 
p. 30. Mr. Geddes especially dwelt upon the remarkable 
laminated formation of the cellulose cyst-wall, and oun the divi- 
