237 



THE LAND AND FRESHWATER MOLLUSCA 

 OF SOMERSETSHIRE. 



(Continued from page 202). 



By E. W. SWANTON. 



Planorbis carinatus Miiller. — Rare. A doubtful record for 

 Kenn Moor (Cundall). " In the moor [Kenn ?] ditches in company 

 with Planorbis marginatus, but not common" (Norman). 



Planorbis umbilicatus Miiller. — "Abundant in the rhines of all 

 the moors, and common in ponds and ditches" (Norman); very 

 common in rhines on Pennard Moor (E.W.S.) ; ditches at Harwood, 

 near Wincanton ( Herri dge). 



Planorbis COrneus L. — A local species. Specimens from Yatton 

 and Clevedon are in the Bristol Museum. " Very abundant in the 

 moor districts " (Norman) ; " Beer Crowcombe, Taunton, three speci- 

 mens " (Bowell) ; common in rhines on Pennard Moor, Glastonbury 

 (E.W.S. ). 



Var. albina Moq. — Clevedon and Yatton (Bristol Mus.) ; Kenn 

 Moor, Clevedon (Cundall). 



Monstr. distortlim. — Smaller than type ; last whorl very large, 

 passing over the penultimate whorl, and partly covering the apex. 

 One specimen from a rhine on Pennard Moor, near Glastonbury 

 (E.W.S.). 



Planorbis contortus L. — Common in ditches and ponds. Kenn 

 Moor, Ashton, Clevedon (Cundall) ; Pennard Moor, Wincanton, 

 Bruton, etc. (E.W.S.). 



Var. albida Jeffr. — Weston-super-Mare (Jeffr.) ; Yatton (Bristol 

 Mus.). 



Monstr. distortlim. — " Specimens from a small pond near 

 Walton Old Church are distorted, having the whorls irregularly coiled, 

 and often folded over each other " (Norman). 



Bullinus hypnorum L. — Avery local species. " Dulcot, near 

 Wells, Yatton ; ditch near the Pill, Clevedon ; and Weston-super- 

 Mare " (Norman) ; Jenyns coll. (Bath Mus.) ; Worle, near Weston- 

 super-Mare (Bristol Mus.) ; Long Ashton (Cundall) ; a small pool at 

 Holbrooke, Wincanton (Herridge) ; Charlton Musgrove near Win- 

 canton (E.W.S). ; ditches at Harwood near the Cale (Galpin). 



Var. cuprella Rowe. — With type. Near Bristol (Bristol Mus.); 

 Charlton Musgrove (E.W.S). ; Holbrooke, Wincanton (Herridge). 



Physa fontinalis L.— Widely distributed. Jenyns coll. (Bath 

 Mus.) ; Long Ashton (Bristol Mus.). 



Var. albina Jeffr. — Long Ashton (Bristol Mus.). 



