276 



CENSUS AUTHENTICATIONS. 



By W. DENISON ROEBUCK, M.Sc, F.L.S., Hon. Recorder. 



All the records here given are based upon examples submitted to the official 

 authenticators : myself for slugs only ; Mr. F. Taylor for Paludestrinidcc ; and 

 Mr. J. W. Taylor for all other species. C.S.Y.C. =Conchological Society's 

 Voucher Collection. 



2 Cornwall East. — Mr. J- H. Adams has sent a couple of adult and one juvenile 



Ptipa anglica, very small, found in a boggy bit of wood about three-quarters of 

 a mile from Polbathick, just where the road from Hessenford joins the main 

 road between Liskeard and Plymouth. This record is of interest because the 

 first from the mainland of the west and south of England, previous records 

 being for the Channel Islands and Lundy Island. He has also submitted an 

 immature example of Hygromia fusca found in a hedge near Wringworthy 

 by Looe in 191 6. 



3 Devon South. — Testacella mangel, Totnes, 20th September, 1917 (E. D. Mar- 



quand). 



4 Devon North (mainland). —Hygro?nia revelata, cliffs west of Ilfracombe (C. P. 



Hurst, 27th June, 1917). 



6 Somerset North. — Hyalinia /?<aV/rt:, Weston-super-Mare, one (J. D. Dean, 22nd 



Feb., 1917 ; Sphyradinm edentuhim, Weston-super-Mare, one, May, 1914 (id.). 



7 Wiltshire '^ox'Csi^—Sphyradiuin edentiilitm, one, Savernake Forest (Cecil P. 



Hurst, 30th Nov., 1917). Hyalinia fura, Roundway Down, loth Oct., 1917, 

 two, var. margaritacea ; IJmncea stagnalis and Plajiorlu's corneus, Kennet and 

 Avon Canal, Devizes, 9th Oct., 1917 ; Limax cinereo-nige?-, Savernake Forest, 

 2nd Sept., 1917, numerous, including vars. cinei-eo-nebulosa, maiira, efasciata, 

 sirobeli, Itictuosa, vera, vera -f briinnea and interrupta -f h'ttn^iea ; Arion inter- 

 medins, Savernake Forest, nth Oct., 1917, a few (C. Oldham). 



8 Wiltshire South. — Helicella heripensis, three, Ena montana, one, Erlestoke, 



nth October, 1917 ; Limax flaviis, one, var. antiqnoriim, Devizes town, nth 

 October, 1917 ; Vallonia costata, south bank of Kennet and Avon Canal, 

 Devizes, one, 9th Oct., 1917 (C. 01dhi;im). Mr. C. P. Hurst has presented 

 to the Voucher-Collection the following : — Helicella cantiana, numerous speci- 

 mens all of var. alboci^icta, including a few with tendency towards the colour- 

 ing of var. rztbescens, from road-side near Shalbourne ; Clausilia rolphii, 

 abundant on hedge-bank near Stype Wood, Bagshot ; and Ancylus fliiviatilis 

 abundant in streani near (and south of) Great Bedwyn ; all taken in early June, 

 1915. 



10 Isle of Wight. — Agrioliinax hevis, common near Sandown, 20th August, 

 1917 (Rev. S. Spencer Pearce). 



11 Hants South. — A?w«.r tenellus. New Forest, 12th Sept., 1917 (G. B. C. 

 Leman). Vallonia costata \ excentrica, Hambledon ; Ena montana, Ditcham 

 Wood; Testacella haliotidea, Hambledon ; T. scutnlnm and 7". mangel. Drover's 

 Nursery, Fareham (L. Dawes). 



14 Sussex East. — Arion ater var. nlgrescejts, West Hoathley, 5th May,' 1917. 

 This completes the Census of A. ater in Great Britain, and only two Irish Vice- 

 Counties are now required, viz., Longford and Cork N.W. Limax clnereo- 

 nlger var. ve7-a (in markings, colour dark brown), Forest Row, 17th May, 1917 ; 

 Agriolimax Icevis, Forest Row, one, 23rd May, 1917 (Lieut. C. T. Cribb). 



