YORKSHIRE NATURALISTS’ UNION AT PENISTONE. 257 
and give rise to considerable reflection. Limnaa feregra is perhaps 
the most ubiquitous species of our molluscan fauna, and a locality 
would be almost hopelessly destitute did it not number this particular 
one amongst its inhabitants. Owing to this hardihood and contrivance 
to exist under the most varying conditions, may probably be due the 
many different forms which give such excellent scope for the exercise 
of the mind of the variety-mongery However, in Scout Dam, besides 
finding some of the more distinct varieties of Zimnaa peregra, such 
as /abiosa and ficta, there is such a confusion of forms that hardly 
two specimens which may be picked up are found alike. Mr. Adams, 
who has given the species considerable attention, has made a most 
interesting collection, showing the gradations in form taken entirely 
from this locality. Nor were the conchologists any less successful 
on this occasion, as very distinct specimens were obtained of the 
varieties before mentioned. Mr. Adams records the scalariform 
had not taken any specimens of it, although the ordinary form was 
plentiful enough. In addition the following aquatic species were 
recorded, Pisidium pusillum and P. fontinale. It was a pity that no 
Mr. Adams’ very fine collection of British land and freshwater 
Shells, the peculiarity of which perhaps is that it consists almost 
entirely of his own collecting, due to extensive travelling. 
Thé President of the Entomological Section, Mr. G. T. Porritt, 
F.L.S., F.E.S., reported that in consequence of the continuous down- 
pour of rain, scarcely any collecting could be done ; and that besides 
himself the only ee present were Mr. S. L. Mosley, F.E.S., 
of Huddersfield, and Mr. Wm. Mansbridge, of Horsforth. He took 
a fine specimen of poise alpestris in the wood near the 
railway station, thus confirming the locality for the species, as two 
out of the previously only seven specimens recorded as having been 
taken in Britain had been secured by Mr. John Harrison, of Barnsley, the 
previous year—‘ possibly at Dunford Bridge,’ but of this Mr. Harrison 
was notatallcertain. Svalis fuliginosa also occurred, and Plectrocnemia 
conspersa commonly. he lepidoptera taken included Venusta 
cambricaria, Larentia cesiata in abundance, Larentia pectinitarta, 
Melanippe galiata, and one or two very good forms of Melanippe 
montanata 
In the absence of all the officers of the Botanical Section, the 
Teport was rendered by Mr. T. W. Woodhead, of Huddersfield, 
who writes :—There is little of importance to record in this section. 
The more interesting parts of the moors were practically inaccessible 
R 
Sept. 1892, 
