SOMERVIT.LF, : THE COXCHOLOOY OF THE CLYDE. I4T 



In conclusion let me express the hope that the mollusca will always 

 continue to receive attention from leading zoologists of the day. In 

 how many cases has attention in the first instance to the mollusca led, 

 in course of time, to the study of marine zoology as a whole ? 



With the opportunities which now occur for visiting, by private 

 vessels, far out-lying ground, and for exploring profound depths at 

 no very great distance from our shores, we have little reason to doubt 

 that the British marine list, large though it now is, will be yet further 

 expanded. 



May we not say that science owes a debt of gratitude to the mol- 

 lusca ? Is it not the case that the shells of molluscs, found in nearly 

 all rock formations which possess organic remains, have been of no 

 little service in aiding the geologist in determining the relative age of 

 these formations ? Apart from the value and usefulness referred to, 

 have we not always before us the exquisiteness, alike in form, in sculp- 

 ture, in colouring, and in variety of those creations which belong to 

 the field which specially interests us? Is there not yet another reason 

 why these creations should attract our observation and excite our 

 interest, namely, that they come forth from Him from whose hand all 

 that emanates is in the highest degree and at all times deserving of 

 our attention and study ? 



♦^♦*4« 



Report on the Hope and Castleton Ramble, July 6th. — When we started 

 from Manchester the weather was dry, and had been so for some days previously, 

 but on arriving at Hope we were agreeably surprised to find the hill tops covered 

 with a dense mist, and later on it commenced to rain, bringing out the thirsty snails 

 and slugs in great profusion. Cave Dale was first thoroughly searched, and thence 

 we went on through Castleton to the Winnatts. The rocks and nettle-covered sides 

 of Cave Dale produced Helix lapicida and H. arhistornin in countless numbers, 

 and we here made the chief find of the day, a nice colony of H. hortensis, a new 

 species in this part of Derbyshire. We also took many species high up on the 

 grassy slopes and mossy ledges just below the Castle. On both sides of the road 

 leading out of Castleton village, towards the Winnatts, Anon ater, H. neinoralis, 

 and H. arbiistoriim were plentiful, and we took some remarkably conoidal forms 

 of the last. Between here and the Winnatts there seems to be a barren patch, 

 where we got nothing, but on arriving at the Winnatts we found the rocky sides and 

 slopes simply alive with various species. The following is a list of species obtained : 

 Cave Dale — Htlix arbiistonim, var. hdeo-fasciata, vz.\. flavescens, var. major, H. 

 netnoralis, var. rubella, var. libellti^a, var. albo-labiata, H. hortensis, var. hitea, var, 

 7Jiiiior (two of the latter showing oblique umbilicus) ; H. lapicida, H. rotiindata, 

 H. hispida, Hyalinia cellaria, H. crystallina, H. ptira, Clausilia perversa, Pupa 

 cylindracea, Vitrina pellucida, Bulii/iinus obscuius, Cochlicopa lubj-ica, var. lubri- 

 coides. Road to the Winnatts — Helix arbustorum, var. conoidea, H. nemoralis, var. 

 rubella, var. libellula. The Winnatts — Helix arbustorum, H nemoralis, var. cas- 

 tanea, var. rubella, var. libellula, var. interrupta, var. compressa, var. albo-labiata, 

 (four specimens have a deep umbilicus) ; H. lapicida, H. rotundata, H. 7-tcpestris, 

 Hyalinia cellaria, H nitidula, Clausilia perversa, var. tumidula. Pupa cylindracea, 

 P. muscorum. — J. W. Jackson. (^Read before the Society, October gth, 1901). 



