232 JOURNAL OF CONCHOLOGY, VOL. 15, NO. 8, JANUARY, I918. 



1910. Tattersall, W. M., D.Sc, The Museum, The University, Manchester. 

 1895. Taylor, Frederick, 32, Landseer Street, Park Road, Oldham, Lanes. 

 1907. Taylor, G. H., School House, Higher Blackley, Manchester. 



1904. £* Taylor, Gerald Medland, Rossall School, Fleetwood. 

 1907. Taylor, J. Kidson, 45, South Avenue, Buxton. 



1903. Thaanum, D., 5, Church Street, Hilo, Hawaiian Islands. 



1907. Z Thornton, H. G., Kingsthorpe Hall, Northampton. 



1886. ATomlin, J. R. le B., M.A., F.E.S., 120, Hamilton Road, Reading. 



1906. Turton, Lt.-Col.W. H., D.S.O., R.E., 30, Caledonia Place, Clifton, Bristol. 



1907. Upton, Charles, Rooksmoor, Tuffley Avenue, Gloucester. 



1914. Van der Sleen, Dr. W. G. N., Eidenoutstraat, 63, Haarlem, Holland. 



1915. Van Hyning, T., Curator, Florida State Museum, Gainesville, Fla., U.S.A. 



1899. Vaughan, J. Williams, J. P., Pen-y-maes, Hay, via Hereford. 



1897. Vignal, Louis, 28, Avenue Duquesne, Paris. 



1902. Vincent, W. C. W., 39, West Bank, Stamford Hill, N. 16. 



1898. Wakefield, H. Rowland, 7, Montpelier Terrace, Swansea. 



1891. Walker, Bryant, 1306, Dime Bank Building, Detroit. Michigan, U.S.A. 

 1917. . Wallace, Henry Simpson, F.E.S., 6, Kayll Villas, Sunderland. 

 1907. Wallis, E. A., Springfield, West Parade, Scarborough. 



1900. Z Watson, Hugh, Bracondale, The Avenue, Cambridge. 



1 905. Weaver, G. H., 31, Devonshire Road, Palmer's Green, N. 



1900. Webb, Walter F , 202, Westminster Road, Rochester, N.Y., U.S.A. 

 1902. Weeks, Wm. H., 508, Willojighby Avenue, Brooklyn, N.Y., U.S.A. 

 1895. Welch, Robert John, M.R.LA., 49, Lonsdale Street, Belfast. 



19 1 3. Western, W. H., 9, Redearth Road, Darwen. 



1907. Wheat, Silas C, 987, Sterling Place, Brooklyn, N.Y., U.S.A. 



1917. Whitelock, Wm. H., Rosedale, Westbourne Rd., Edgbaston, Birmingham. 



1916. Whitwell, John W., 39, Queen's Way, Wallasey. 



1886. Whitwell, Wm., Brookside, Darley Green, Knowle, Warwickshire. 



1911. * Williams, James M. M., Imperial House, Pontlottyn, Cardiff. 

 1889. Williams, John M., 31, Grove Park, Liverpool. 



1915. Wilman, Miss M., The McGregor Museum, Kimberley, South Africa. 



1913. Winckworth, Ronald, 37, Upper Rock Gardens, Brighton. 



1917. Z Wintle, Wm. James, F.Z.S., 47, Vincent Square, Westminster, S.W. i. 



1901. ZWoodruffe-Peacock, Rev. E. A., F.L.S., etc., Cadney, Brigg, Lines. 

 1898. Woods, Henry, M.A. , F.G.S., Sedgwick Museum, Cambridge. 

 1886. Z Woodward, Bernard B., F.L.S., etc., 4, Longfield Rd., W. 5. 



1914. Worsfold, Herbert W., 28, Melody Road, Wandsworth, S.W. 18. 

 1895. Wright, Charles East, Neale Avenue, Kettering. 



Pisidium hibernicum in Carnarvonshire. — Among some Pisidia from Welsh 

 mountain tarns that I sent to Mr. A. W. Stelfox recently, he recognised specimens 

 of Pisidium hibernicum, and his determination was confirmed subsequently by 

 Mr. B. B. Woodward. The shells in question were obtained in July, 1916, in 

 Llyn Dwythwch, the lake which lies at an altitude of 920 feet in Cwm Dwythwch, 

 beneath the eastern slope of Moel Eilio, a mile and a half south of Llanberis. 

 They are much less swollen and more strongly striated than specimens from the 

 type locality, Lough Nagarrivain South Kerry, but the peculiar twist in the principal 

 anterior lateral teeth, the deep fossse behind them, and the symmetrically arched 

 hinge-line are characteristic. The only other species I could find in the llyn was 

 Limnica pereger, and that but sparingly. — C. Oldham {Read before the Society, 

 February 14th, 1917). 



