1 62 R. STANDEN : LAND AND FRESHWATER :\IOLLUSCA. 



Pits at Clayton, near Manchester (T.R.). 



' Found in the ponds near Blackpool, amongst weeds and on 

 the mud' (Dyson's List, 1850). 

 Planorbis nitidus Miill. Occurs at Prestwich, Goosnargh, Farring- 

 ton, Fulwood, Penwortham,andWalton-le-dale, but is uncommon. 

 Stonyholme, Burnley (F.C.L.). Pond, Green Drive, Lytham 

 (J. A. Hargreaves). 



' Pits in the neighbourhood of Chorlton, Pendleton, &c. ; 

 not uncommon in the district' (Hardy's List, 1865). 



Frequent (R.D.D.). 

 var. albida Nelson. Pond near Walton-le-dale ; rare, 

 var. minor Jeff. Some specimens from the Clifton Canal were 

 thus named for me by Jeffreys himself (T.R.). 

 Planorbis nautileus L. Swarms in a ditch at Charnock Moss, near 

 Preston, on Fontinalis antipyretica. Plentiful on water-cress 

 in a ditch at Goosnargh, and unusually fine in a pond at 

 Whittingham. From the latter locality Mr. Heathcote has taken 

 six beautiful scalariform specimens. 



Pits at Clayton, near ^Llnchester ; and very fine at Newton 

 Heath (T.R.). 



' Hough-end-Clough, Gorton, &c. Amongst leaves in pits. 

 Common' (Hardy's List, 1865). 



' Found in most of the old pits on the coast, from 

 Ormskirk to Southport and Preston, and in the ponds 

 about Freckleton, where, in a very small pond at Naze 

 House, they are particularly fine and clean ' (Dyson's List, 

 1850). 



Not uncommon in pits on leaves of flags (R.D.D.). 

 var. crista L. Common in a pond at Whittingham. 

 Planorbis albus IMiill. Plentiful at Goosnargh, Prestwich, Swinton, 

 Worsley, Birch, Farrington, Newsham, Tarleton, Crossens, 

 Carnforth, and in several ponds around Burnley (F.C.L.). 

 Unusually large in a pit at Pendlebury. Ponds about Hasling- 

 den (H. Stephenson). 



' Pits near the river opposite Barlow Wood. Near Withington, 

 and in many other places' (Hardy's List, 1865). 



' Ponds in Prestwich Wood, on the leaves of Nymphcea alba ' 

 (Dyson"s List, 1850). 

 Planorbis glaber Jeff. ( = P. parvus Say). Mr. F. C. Long has 

 sent me several specimens of this, which he has recently taken 

 in a lodge at Burnley, in company with P. dilatatus. 



' Taken in a pit in Hough-end-Clough by Mr. Jas. Walkden ' 

 ^Hardy's List, 1865). 



Naturalist, 



