i66 



R. STANDEN : LAND AND FRESHWATER MOLLUSCA. 



var. solemia Zgl. I took some grand specimens of this var. last 

 year, from a pool at Birkdale, Southport. The locality is, I 

 regret to say, being destroyed by the construction of a new- 

 public park upon the site. 



var. boissii Dup. Abundant in a ditch ( n the north of Southport. 



monst. decollatum Jeff. A few taken at Farrington. 



A very dwarfed form of peregra occurs at Grimsargh, in 

 a small pond, the result, probably, of over-crowding and 

 scarcity of food. A very similar form also occurs in a pond at 

 Glazebrook, in company with P. spirorbis. The pond is 

 very small and shallow, and filled with a dense growth of 

 Bulrush. 



Limnaea auricularia L. Rather rare. Pond at Newsham. Canals 

 at Tarleton and Burnley (F.C.L.). Canal at Church, near 

 Accrington. Fine, large, and clean in Mill Pond at Blackburn, 

 1886 (J. A. Hargreaves). Canal and ponds at Haslingden, and 

 Church (H. Stephenson). 



' Pits, etc., in many places, chiefly on the eastern side of 

 Manchester' (Hardy's List, 1865). 



' Very fine in Beswick Reservoir, and in some pits in Dirty 

 lane, Cheetham ; pits behind Ardwick Station, and near the 

 Borough Jail, and in most of the pits and lodges in the hollows 

 near Newton. In the Leeds and Liverpool Canal at Burnley it 

 is very fine. In some pits near Lancaster it is of a very elegant 

 shape, far surpassing any found elsewhere. This shell is common 

 and variable' (Dyson's List, 1850). 



Gorton Canal. Very fine in a condensing lodge near 

 Gorton (water warmed) (R.D.D.). 

 Limnaea stagnalis L. Very abundant in Drink water Park, Prest- 

 wich ; all the specimens are peculiarly distorted, probably owing 

 to influx of water from adjacent bleachworks. A few in canals 

 at Clifton and Burnley (F.C.L.). Plentiful in Mill Lodge at 

 Withnell, near Chorley, and at Hoghton. Haslingden and 

 Church (H. Stephenson). 



' Very fine in pits near Moss Lane' (Hardy's List, 1865). 



' There are five or six pits close to the Beswick Waterworks, 

 each of which contains a distinct variety of this shell; one 

 variety has a reddish-purple pillar, and is very large. I have 

 not seen this variety elsewhere. The other varieties, however, 

 are common in most of the pits between Ashton and Man- 

 chester. There is a pit on the left-band side of the highroad 

 from Ardwick to Gorton that contains a shell which answers 

 well to Gray's description, having a cut-glass-like appearance. 



Naturalist, 



