TAYLOR : MOLLUSCA BETWEEN ASHTON-UNDER-LYNE AND OLDHAM. 51 



Helix rotundata (Miill.) — Common throughout the district ; at 

 Bardsley a few of the var. alba taken with the type. 



H. pygrnaea (Drap. ) — Common in wet places in Holden Clough, 

 and in the wood at Riversvale. 



H. pulchella (Miill.)" This beautiful little shell I have only taken 

 in one locality, at the foot of the wall on the river bridge near Rivers- 

 vale House ; all specimens taken were of the typical form. 



H. aculeata (Miill.) — Sparse in the wood at Riversvale. 



H. nemoralis (L.) — Four mature specimens and several young 

 ones in different stages of growth, from a clump of Epilobium hirsutuvi 

 in Riversvale. 



H. arbustorum (L.) — Several mature, and numbers of immature 

 specimens in the wet places in Riversvale. 



H. hispida (L.) — A few examples in a clump of rushes near Daisy 

 Nook, and common near the aqueduct in Riversvale. 



Pupa cylindracea (Da Costa). — Common, adhering to the 

 under-sides of stones under the wall in the wood at Bardsley, and 

 near Daisy Nook. 



Vertigo substriata (Jeffr.) — Fairly plentiful in a wet place in 

 Holden Clough, and also in wet places at Riversvale. 



Cochlicopa lubrica (Miill.) — Common throughout the district, 

 the var. lubricoides occurring with the type at Bardsley. 



Carychium iqinimum (Miill.) — Abundant in moss under stones 

 and at the roots of grass at Parkbridge, Bardsley and Riversvale. 



Planorbis fontanus (Lightfoot). — Common in the ditches on 

 Fitton Hill and Parkbridge, and not uncommon in the canal 

 beyond Bardsley Bridge. 



P. nautileus (L.) — Common all over the district, in every pond 

 and ditch I have visited, the var. crista occurring with the type ; in 

 a ditch on Fitton Hill, a scalariform monstrosity occurs sparingly. 



P. albus (L.) — Very abundant throughout the district, most shells 

 being covered with hard black dirt. 



P. spirorbis (Miill.) — Occurring in numbers in the ponds near 

 the " Sportsman's Arms," Fitton Hill. 



P. vortex (L.) — Abundant in the canal at Bardsley, and in a pond 

 at Riversvale. 



P. carinatus (Mull.)— Common and fine in the canal at Bardsley. 



P. COrneus (L.) — Abundant in the canal at Hollinwood, but only 

 sparse in the same water at Bardsley ; very common in pits at Park- 

 bridge, albino examples being taken commonly with the type ; 



