228 Miscellaneous. being more prominent in some species than in others, that tfie beau-tiful appearance of Bat's hair depended. The scales might be pro-cured either by scraping the hair with a knife in a direction from the apex towards the root, or more easily by pressing them between glasses previously moistened by the breath. Many of them ap-peared to terminate in a quill, like that observed on the butterfly's scale; some few were flat, whilst others were curved, so as to fit the shaft of the hair, and presented a serrated edge. The scales were absent near the bulb, but abounded in all parts of the shaft situated above the skin ; and when removed from many of the larger hairs, the fibrous nature of the shaft and its cellular interior were well dis-played. He spoke of the hair of an Indian Bat, of which a small portion had been given him by Mr. Powell, in which, without any preparation, the scales could be beautifully seen, both detached and still adherent to the shaft ; and he was led, from repeated observation, to consider a Bat's hair as composed of a shaft invested with scales, which are developed to a greater or less degree, and vary in the mode of their arrangement in the different species of these animals ; and concluded by stating that Bats resembled quadrupeds principally in their mode of reproduction, and birds in their mode of progression, but resembled both in the structure of their hair. Some discussion followed the reading of the paper, in which the President and others took a part. MISCELLANEOUS. Cyclostoma elegans, Lam., an Irish Shell. — In my catalogue of the Land and Freshwater Mollusca of Ireland, published in the 6th vol. of the ' Annals,' it is considered that there are not sufficient data for ranking Cyclostoma elegans with our indigenous species. I have lately seen a number of specimens of this shell, and am now enabled to an-nounce it as such, although not so satisfactorily as could be wished. These were found by Mrs. W. J. Hancock washed up by the tide upon the strand at Mullaghmore, near Bundoran, on the western coast. Whether the Cyclostoma tenants the neighbouring sand-hills, or is brought from a distance by rivers to the ocean and then cast upon the beach where the examples here mentioned were obtained, is yet to be learned. Fully a hundred of them were collected in one day. In reference to a Cyclostoma which Dr. Turton stated had been found in the west of Ireland, I troubled Mr. Jeffreys with some queries, which were replied to as follows, in a letter dated Swansea, Aug. 30, 1841 : — "The specimen of Cyclostoma productum (Turton) which I received from Mr. Clark as forming part of the late Dr. Tur-ton's collection is well figured in his ' Manual,' but it does not agree with the figure or description of C. sulcatum of Draparnaud, to which Dr. Turton doubtfully referred it. I have no doubt that it is an exotic shell, and that Mr. Gray's account of it (in his edition of Tur-ton's Manual) is correct." — Wm. Thompson. Belfast, Sept. 1841.