56 WOTTON : LAND AND FRESHWATER SHELLS OF CARDIFF. 



Achatina acicula. — Hedge bank at Llandaff, three inches 



beneath surface of ground. Three specimens only, 1882. 

 Carychium minimun. — Penarth, &c. Not uncommon in 



the hmestone districts. 

 Cyc!ostoma elegans. — Llantwit Major and Penarth. At base 



of rocks on the shore; moderately common. 

 Vertigo edentula. — One specimen near the Feeder, and 



three at St. Mellon's. 



Helix carhisiana used to occur on the East Moors, and 

 were localized on a small patch of raised ground, which, at the 

 time I allude to, was covered with a luxuriant growth of ballast 

 plants. This was some four or five years ago, since then both 

 plants and shells have entirely disappeared, and " left not a 

 vestige behind." ^ 



It is near the spot referred to above that H. villosa was 

 found ; I have searched closely for it very many times but never 

 saw the slightest trace of it, and think it a certainty that both it 

 and H. cartiisiana were introduced with ballast, or in the case 

 of H. villosa with esparto grass, large quantities of which are 

 brought into Cardiff and stored on these moors. I may add 

 that a brick-yard now covers the spot where H. villosa was 

 taken, and various works and docks are fast occupying the 

 ground, so that in another few years at the outside, the whole 

 place will be covered, and the ditches, ponds, and habitats of 

 various land shells will, alas ! be no more. 



Note. — The " Cardiff Feeder " alluded to is an artificial 

 river made to supply or feed the Bute Docks, for the purpose 

 of keeping the water at the required height during the low 

 ebb tides. 



J.C, v., April, 1SS6. 



