YORKSHIRE NATURALISTS’ UNION AT MALHAM. 175 
In the absence of its officers, the Conchological section was 
represented by Mr. W. Denison Roebuck, F.L.S., Mr. A. H. 
Newstead, B.A., of Epping, and Messrs. C. Rowson and F. W. 
Fierke of Hull, by the last-named of whom the following report was 
drawn up. 
Although the weather was fine there was too much wind to 
attract the Helices from their retirement, such species as Helix 
ertcetorum and H. lapicida being either rarely, or not at all, observed. 
careful search was therefore required of the members of this 
section to enable them to obtain anything like a list, which, as the 
time was rather short, and the ground to be covered somewhat 
extensive, proved no easy task. 
or a day excursion at Malham the meagre attendance was not 
at all satisfactory, but had it been possible to divide the workers 
into parties, some to undertake the Tarn, others the grand limestone 
rocks of the moors, better results might reasonably have been 
anticipated from the labours of this section. 
The following is the list of Mollusca collected during the day :— 
Arion bourguignati. One taken at Malham. 
Succinea putris. Under a tree trunk on the border of Malham 
arn at 1,200 ft. alt. 
Vitrina pellucida. Rather common, both at Bell Busk on the 
roadside, and near Malham Tarn House, 1,300 ft. alt. 
Zonites cellarius. Malham. 
Zonites alliarius. Common at Bell Busk. 
Zonites nitidulus. On the road to Malham from Bell Busk. 
Zonites crystallinus. Above Malham Cove, and close to 
Malham Tarn House. 
Helix nemoralis. Dead specimen was found of /ide//ula 00000 
at Bell Busk. 
Helix rufescens. A somewhat common species at Malham. 
Helix hispida was found at Bell Busk. 
Helix sericea. On the road from Malham to the plateau, on 
a heap of limestone rocks some too yards past the village, 
which were covered over with nettle. 
Helix ericetorum. On the same road, but a little higher up. 
Helix rotundata. Bell Busk and Malham. 
Helix rupestris. Common on walls near Bell Busk ; also on the 
same heap of limestone rocks as #. sericea, behind Malham, 
but occupying much drier situations than that species and 
away from the herbage. 
June 1891. 
