320 MILNE AND OLDHAM : MOLLUSCA OF BOWDON DISTRICT. 



Vertigo pygmaea. " Near Ashley Mill, and again in the road 

 at the back of Ashley Hall, under dead leaves " (Hardy). 



V. substriata. One specimen found at Butt's Clough with 

 the next species. 



V. edentula. Very plentiful in Butt's Clough, among dead 

 leaves, especially oak, in the autumn. 



Clausilia perversa. "Wall at Dunham Park" (Hardy). Long 

 and frequent searching here has only produced one speci- 

 men, on the Bollington wall, but it is fairly common higher 

 up the valley, at Castle Mill, and occasionally occurs at 

 Ashley Mill. 



C. lamlnata. "Cotterill Clough" (Hardy). It is fairly plentiful 

 in the clough, and still more in the copses half-a-mile 

 lower down the river. 



Cochlicopa lubrica. Generally distributed, in ditches and 

 copses. 



C. lubrica van hyalina. Ashley Hall, Hale. 



Succinea putris. " Several varieties are found on the banks 

 of the Mersey, at Jackson's boat" (Dyson), Gatley, Knuts- 

 ford. 



S. elegans. "Banks of the Mersey, at Jackson's boat" (Dyson), 

 Hale Moss, Seaman's Moss (Hardy). The last locality is 

 probably destroyed. The species is still to be found on 

 Hale Moss, and also at Ashley Hall and Bollington 

 meadows, especially on sedges. 



Carychium minimum. Occurs sparingly in several places — 

 Castle Mill, Butt's Clough, Dunham, Bollington, Wythen- 

 shawe, and Baguley Hall. We have taken it in great 

 numbers in rotten wood under the bark of a decaying 

 stump at Ashley Hall, associated with H. crystallina ; and 

 found it equally numerous in a similar stump at Gatley 

 Carrs. 



Planorbis fontanus. Fairly common in ponds, with a 

 seeming preference for Le?fmcB — at Ashley Mill, Hale, 



J C, vol. vii., Jan. 1894. 



