SCIENCE-GOSSIP. 



295 



LAND AND FRESHWATER MOLLUSCA OF ISLE OF WIGHT. 



By the late Charles Ashford. 

 (Contributed by Professor T. D. A. Cockerel!.) 



HPHE following catalogue was compiled years 

 ago by the late Mr. C. Ashford, and kindly 

 transmitted to me when I was working on the 

 Mollusca of the south-eastern counties. It seems 

 to me to be worth publication, although most of 

 the records have been given already in various 

 places. I leave the nomenclature as written by 

 Mr. Ashford ; it will be readily understood by 

 conchologists. 



Isle of Wight. 



A list by G. Guyon, A. J. Hambrough, F.L.S., 

 F.G.S., and A. G. More, F.L.S., published in 

 " Venable's Guide " (i860?) with additional notes 

 by C. A. (i) 



Sphaerium corneum. — Abundant in ditches on 

 Sandown Level; pond near Ryde, A. G. M. 



Sphaerium lacustre. — Sandown, A. G. M. The 

 Pond, Bonchurch, G. G. Between Sandown Fort 

 and East Yar Bridge, A. J. H. 



Pisidium pusillum. — Abundant, East Yar, Sandown 

 Marshes ; also in Medina, A. G. M. Stream near 

 Woolverton, G. G. 



Pisidium fontinale. — Pond, Yarmouth, C. A. Var. 

 cinerea, pond near the Priory, A. G. M. Var. 

 pulchellum, Steephill, A. J. H. Stream at Bon- 

 church, G. G. River Medina (near Blackwater), 

 East Yar, Sandown Marshes, A. G. M. ( 2 ) 



Pisidium nitidum. — Ponds near Fivens, St. 

 Helen's, A. G. M. 



Pisidium amnicum. — Medina (near Blackwater 

 Mill), and in East Yar (near Sandown Marshes), 

 A. G. M. 



Anodonta cygnea. — Common in Sandown Marshes, 

 both in East Yar and ditches, A. G. M. 



Valvata piscinalis. — Everywhere in East Yar, 

 from Alverstone to its mouth, A. G. M. 



Physa fontinalis. — Ditch between Ventnor and 

 Steephill, Sir W. Jardine. Abundant everywhere 

 in Sandown Level, also near Ryde and in Medina, 

 A. G. M. 



Physa hypnorum. — Plentiful in pond in Sandown, 

 and sparingly in ditches near Sandown Fort, 

 A. G. M. 



Planorbis albus. — -Alverstone, A. J. H. Abundant 

 in Sandown Marshes and in Medina, A. G. M. 



Planorbis nautileus. — " Lord Yarborough's Pond," 

 Sir W. Jardine. Westover, A. J. H. 



Planorbis carinatus. — Common in ditches, San- 



( ] ) This note is in Charles Ashford's handwriting.— Ed. 

 S.-G. 



(-) " The inland specimens are a variety approaching the 

 Cycl. obtusalis of Nilsson " (!). 



down Marshes, and in East Yar itself, above Yar 

 Bridge, A. G. M. 



Planorbis complanatus (marginatus) . — Rare(?). Pond 

 at St. John's, Ryde, A. G. M. The specimens 

 have been seen by Mr. Alder, who considers them 

 a variety of this species. 



Planorbis vortex.— Rare (?). In the pond of the 

 garden at St. John's, Ryde, A. G. M. "This and 

 the preceding species may have been introduced 

 by means of aquatic plants placed here by 

 Dr. Bromfield." Ditches, Yarmouth, C. A. 



Planorbis spirorbis. — Common in every pond and 

 stream, and one of the few shells yielded by the 

 Medina, A. G. M. Steephill Pool, G. G. Yar- 

 mouth, C. A. 



Planorbis contortus. — Westover and Alverstone, 

 A. J. H. 



Limnaea peregra. — Of every variety, from the 

 narrow and elongated shell of the East Yar 

 to the broad variety of stagnant water which 

 resembles L. auric; fine examples of latter in 

 a small pond, Bonchurch ; it is the only one 

 of the Isle of Wight air-breathing Mollusca 

 which I have found in brackish water, A. G. M. 

 Yarmouth, C. A. Approaching var. acuminata, 

 Yarmouth, C. A. 



Limnaea stagnalis. — Pond near Haven Street, 

 Mr. George. 



Limnaea truncatulus. — St. Laurence pond, A. J. H. 

 Abundant at edge of East Yar and Medina, 

 A. G. M. Under stones in marshy spot in Steep- 

 hill Cove, G. G. Stream near the Priory, A. G. M. 

 Thorley and Norton, near Yarmouth, C. A. 



Limnaea palustris. — Ditches near Sandown Fort, 

 in East Yar (near Yar Bridge), and pond near 

 Sandown, but in all localities sparingly, A. G. M. 



Ancylus fluviatilis. — On stones under water, 

 Steephill Pool, A. J. H. Abundant in East Yar, 

 also in streams near Ryde, A. G. M. 



Arion ater. — Common, G. G. Yarmouth and 

 Totland Bay, C. A. 



Arion hortensis. — Under a fallen tree in wood at 

 Bembridge, A. G. M. Common about Ventnor, 

 G. G. Hempstead Hill, near Yarmouth, C.A. 



Limax agrestis.— Common ; a variety of opaque 

 milky-white occurs, G. G. Ventnor and Yar- 

 mouth, C. A. 



Limax maximus. — Common, G. G. 



Limax arborum. — Steephill, A. J. H. Bembridge, 

 A. G. M. Ryde, W. Thompson, 1841. Thorley, 

 near Yarmouth, C. A. (two). 



Limax flavus. — Steephill, A. J. H. 



