No. 4.] 



OCTOBER, 1883. 



[Vol. 4. 



THE 



JOURNAL 



OF 



COlSrCHOLOGY. 



ESTABLISHED IN 1 8 74 AS 



THE Q UAR TERL Y JO URNAL OF CONCHOL OGY. 



CONTENTS. 



ORIGINAL COMMUNICATIONS: page. 



Life History of Helix aspersa. — J. W. Taylor ... ... 97 



The Darts of British Helicidce, part ii. — C. Ashford ... ... 108 



Neritina fluviatilis var. cerina in Hants. — J. W. Taylor ... 112 



Notes on Carnarvonshire Mollusca. — W. Denison Roebuck ... 113 



Testacella haliotidea V. scutulum. — T. S. Hillman ... ... 115 



Note on the range of Paludina vivipara.— J. W. Taylor ... ... 116 



Alteration in the molluscan fauna of a small pond. — W. Nelson 117 



Bulimus obscurus v. albinos. — W. Denison Roebuck ... ... 117 



The musical sounds of Achatinellse. — Rev. H. Glanville Barnacle ... 118 



Helix virgata V. major. — J.W.Taylor ... ... ... iiS 



Limnffia peregra V. Burnetti. — MissJ.Hele ... ... ... 124 



Limax maximus V. cellaria. — W. Denison Roebuck ... ... 125 



Helix rotundata V. alba.— J. W. Taylor ... ... ... 125 



Notes on Flintshire Mollusca. — W. Denison Roebuck ... 126 



Ancylus lacustris a thread spinner. — J.W.Taylor ... ... 127 



Paludina vivipara V. unicolor. — ^J. W. Taylor ... ... 127 



Variation in the coloration of Planorbis contortus — W. Nelson ... 128 



Planorbis complanatus monst. terebrum. — ^J. W. Taylor ... 128 



BIBLIOGRAPHY ... 119 



PROCEEDINGS oftheCONCHOLOGICAL SOCIETY 106 



LONDON: D. BOGUE, St. Martin's Lane, W.C. 



LEEDS : TAYLOR BROS., St. Ann Street. 



BERLIN; R. FRIEDLANDER & SOHN, Carlstrasse, ii. 



HOBART TOWN, TASMANIA : W. LEGRAND. 



PRICE ONE SHILLING. 



