62 MOLLUSCA OF SOMERSET. 
Var. anatina, Linné (= Anodonta anatina, Linné). 
Widely distributed, until quite recently was considered as 
a distinct species. 
Avon at Bath; Bath Mus. Jenyns Coll. 
Common in the river Brue, about Bruton and Castle Cary ! 
Frequent in the Cale below Wincanton ! 
Kennet and Avon Canal; Cundall. 
River Brue, Lovington; W. Herridge. 
Kennet and Avon Canal, near Bath; H. Watson. 
Var. arenaria, Schroter. 
Canal, Taunton; W. Gyngell. 
Var. radiata, Muller. 
Bath Canal; Bristol Mus. Coll. 
Kennet and Avon Canal; Cundall. 
SPH#RIUM RIVICOLA, Leach. 
A local species. 
North. 
Bath Canal; Jenyns Mus. Coll. 
Keynsham ; Misses Hele. 
Kennet and Avon Canal; Cundall. 
Cale at Harwood, below Wincanton; W. Galpin. 
Kennet and Avon Canal, near Bath; H. Watson. 
SPH@RIUM CORNEUM, Linné. 
Widely distributed in ponds, ditches, canals and rivers. 
Var. pisidioides, Gray. 
River Avon, Bath; Jordan. 
Streams near Clevedon, rare ; Streams near W eston-super- 
Mare; Miss Jessie Hele. 
In the Avon; W. Stoddart. 
Var. scaldiana, Norman. 
Bath; Rich. 
Var. nucleus, Studer. 
Clevedon ; Letpner. 
Scarce in stream at Kewstoke, Weston-super-Mare ; Miss 
Jessie Hele. 
Ilchester ; J. Ponsonby. 
Var. flavescens, Macgillivray. 
Clevedon; Miss L. C. Jones. 
Bath Canal, sides of Canal; Rare in streams at Kewstoke, 
Weston-super-Mare; Miss Jessie Hele. 
