THE CONCHOLOGIST. 



of ground in the midst of }>irkdale 

 sand-hills. At Hesketh Woods, Scaris- 

 brick, Rufford, and Bispham. " A bag- 

 full of grass (two or three quarts),"' 

 says Dr. Chaster, will yield, from the 

 first-named locality '• thirty to fifty speci- 

 mens." 

 Vertigo pygmaea, Drap. Associated with 

 H. pygDiica, on the cops in the middle 

 of Birkdale sand-hills. 



Pupa marginata, Drap. Abundant at the 

 roots of Starr grass, on Birkdale sand- 

 hills. 

 The quotations indicated by inverted commas 



are from Dr. Chaster's letter to the writer. 



THE LAND AND FRESHWATER MOLLUSCA 

 OF OXFORDSHIRE. 



BV W. E. COLLIiNUE. 



BUT few works have been written on the 

 Molluscan Fauna of the different counties 

 in Great Britain and Ireland. Numerous local 

 lists of Oxford have been published, but from 

 the fact that they have appeared in various 

 scientific periodicals, and at different times, 

 their value is to some extentde cresed by their 

 necessarily uncollected and inaccessible form. 

 I have been induced to put together the fol- 

 lowing pages, partly by the want I have felt 

 myself, during the years my attention has been 

 devoted to Oxfordshire MoUusca, and partly with 

 the hope of presenting to the conchologist and 

 naturalist, new matter relating to the subject, 

 and a concise and handy means of reference to 

 the molluscan fauna of the county. Failing 

 any recognised divisions of the county, I have 

 termed the eight different centres I have 



worked from " districts," except where the 

 records are but few or rare I have not given 

 them in detail. 



To the many correspondents (to whom my 

 thanks are equally due, but too numerous to 

 mention individually), from whom I have 

 received much valuable information, I tender 

 my warmest thanks. To Messrs. O. V. Aplin, 

 M.B.O.U., T. D. A. Cockerell, the Rev. 

 S. Spencer Pearce, M.A., William Nelson, 

 W. Denison Roebuck, F.L.S., and J. W. 

 Williams, I am much indebted for their 

 advice, records, lists, examination of critical 

 forms, and other services which they have so 

 generously placed at my disposal. 



At the conclusion of this list I shall give 

 a brief review of the physical features of 

 the county, the bibliography, «S:c. 



LIST OF DISTRICTS. 



1. Banbury. 5. Bicester. 



2. Chipping Norton. 6. Oxford. 



3. Wychwood & Charlbury. 7. Swincomb. 



4. Deddington. 8. Henley. 



TESTACELLA, Cuviei. 



Testacella haliotidae, Drap. 



This is not at all uncommon, but is seldom 

 seen above ground. I have met with them 

 at a depth of from four to five feet, as well 

 as nearer the surface. 



Testacella scutulum, Sby. 



I find a record for this species in my 

 papers as occurring near Oxford, in 1887. I 

 have not since met with it, and I am now 

 inclined to think that these specimens were 

 2\ haliotidic. 



LI>L\\', L. 

 Limax maximus, L. 



^ L. cinereus, Miill. 

 This, the largest of the Limaces, is very 

 plentiful throughout the county, occurring pro- 

 fusely in all the eight districts. 



