6 Quarterly Journal of Conchology. 



Helixrufescensv.minoryd^^r.— Rather commonnr.Chevet. 



Helix hispida L. — Common throughout the district. 



Helix virgata Da Costa. — Very local, only occurring on 

 and about a railway bridge near Oakenshaw. 



Helix caperata Mont. — Common throughout the district. 



Helix caperata var. ornata Picard. — Occurs along with 

 the type, frequently. 



Helix caperata var. subscalarisy^r. — Rare, one speci- 

 men on Sandal Castle Hill. 



Helix caperata var. Gigaxii Charp. — Frequently met 

 with in Chevet Lane. 



Helix ericetorum Midler. — Sandal Castle Hill, where I 

 also found a scalariform specimen. 



Helix rotundata j/////^A. — Common throughout the district. 



Hel ix rotu ndata var. al ba Moquin-Tandon. — My friend, Mr. 

 G. Taylor, has taken three specimens of this rare variety near Ossett. 



Helix pygmaea Drap. — Scarce at Haw Park and other 

 places in the district. 



Helix pulchella Midler. — Common in a quarry at Oaken- 

 shaw and New-miller-dam. 



Helix pulchella var. costata yl/////^r. — Occurs plentifully 

 with the type at Oakenshaw. 



Bulimus obscurus Midler. — Rare at Sandal Castle Hill. 



Vertigo pygmaea Drap. — Rare, occurs at Dirtcar, where 

 the specimens have four teeth. 



Clausilia rugosa Z>m/.— Occurs at Sandal, Newmarket, 

 and Woodlesford. 



Cochlicopa lubrica Midler. — Haw Park. 



Cochlicopa lubrica var. lubricoides Fer. — Haw Park 

 and Sandal Castle Hill. 



Acme lineata Drap. — Living specimens of this rare Mol- 

 lusk were found in decaying timber on the canal side, near Haw 

 Park, by myself and Mr. Wm. Lund. 



Sandal Common, Near Wakefield, Dec. 26th, 1873. 



On Varieties of Paludina viviparaand Planorbisgla- 

 ber. — Having been so fortunate during the past year as tofind a new 

 and distinct variety of each of these fresh-water Shells, which have 

 been kindly determined for me by Mr. J. G. Jeffreys, F.R.S., I 

 send a description of them for the information of your readers. 



Paludina vivipara var. atro-purpura. — Shell same shape as 

 the normal form, but of a black colour, which, when viewed by 

 transmitted light, is dark purple, being in fact the same colour as the 

 bands of other specimens which occur with it. I found it in thecanal 

 at Pontypool this spring in numbers, together with the type and the 

 variety unicolor; and besides this, there were with them all inter- 

 mediately coloured ones, between unicolor and atro-purpura; these 

 evidently being the ends of a series, unicolor being that in which all 

 traces of the bands have vanished, and atropurpura that in which 

 they have so spread themselves as to have entirely obliterated all 

 traces of the green ground colour of the typical shell. 



