210 
(loe. cit.). Ph. intestinum (Cietik.) had not yet been detected 
in this country. Jf the organism here referred to as Aporea 
ambigua should really turn out to represent another species in the 
same genus as Cienkowsky’s, it would almost appear in that case 
as if that genus should be designated Aporea in place of Phalan- 
sterium, the former having the priority, notwithstanding Bailey’s 
name being contrived, owing to his absolute want of knowledge 
of its nature, with a view to imply utter vagueness. 
Dr. E. Perceval Wright exhibited some preparations of several 
new sponges from the Seychelles, drawings of which had been 
made for him by Mr. Lens Aldous. One of these, referable to a 
new genus, perhaps near Stelletta, was remarkable in having de- 
veloped from it a number of flat spoon-shaped appendages, some 
of which ended in oscula, while others seemed to act as protective 
shields to these. Nearly all the sponges indicated had been ex- 
amined in a living state, and had been collected from the sides of 
the coral reef surrounding Mahe. 
Mr. W. H. Furlonge, from London, exhibited a series, new to 
the Club, of the objectives made by Gundlach of Berlin. Several 
of these were of high power and all of excellent performance, and 
are sold at comparatively very, moderate prices. These new 
powers were brought to bear upon several of the diatoms in 
Méller’s “type slide” of 400 specimens, also kindly exhibited by 
Mr. Furlonge. 
17th November, 1870. 
Dr. John Barker exhibited a very pretty rotatorian referable 
to the genus Philodina, and he thought truly Philodina aculeata. 
This differed, however, in the spine-like processes not forming 
two marginal rows, but rather a dorsal group, and these curved 
or hooked ; the eye was cervical and placed rather far down, and 
the trochal discs double, forming a striking appearance when in 
action; the lateral proboscis furnished with three pencils of 
minute rigid cilia. 
Dr. Moore showed a fungus which had made its appearance on 
a plant of a species of Catasetum, imported from South America. 
It began with a slight discoloration of spots on the leaves, which 
gradually grew darker and softer until the spot became covered 
with watery fluid. At this state the mycelium could be seen 
penetrating the soft mass and issuing through the stomates on 
the leaf. The watery fluid dried up, but the diseased spot rapidly 
extended until it destroyed the leaf altogether. The stem of 
the plant afterwards became affected, and was partially destroyed 
in a similar way as the leaves had been. It was considered that 
this destructive fungus had been imported with the plant it affected. 
It has not yet been identified with certainty, but Dr. Moore 
thought it might be a form of a parasitical. fungus described 
and figured by the Rev. Mr. Berkley in first number of London 
‘ Horticultural Society’s Journal.’ 
