8 THE MOLLUSCA OF DORSETSHIRE. 
27. P. rotundata (JJ/dill.) H. rotundata, Mill. H. radiata, 
Da Costa. 
Pulteney, p. 54, pl. 20, £. 15, 16. 
Under stones, logs of wood, bark of old trees. 
Generally distributed. 
Fossil: Blashenwell Quaternary tufaceous deposit. 
HELIOMANES (fér) Moquin-Tandon, 1855. 
28. H. variabilis, Drap. Helix virgata Da Costa. 
Pulteney, p. 53, pl. 20, f. 7. 
Brit.-Conch, Vol. i., p. 210. 
Downs, limestone, chalk pastures, and heather; exceedingly 
abundant on and near the sea coast, 
Mr. Gwyn Jeffreys says the largest specinen of H. wirgata 
that I have ever seen were collected by Mr. W. Thompson 
at Weymouth ; they are four-fifths of an inch in breadth. 
Mr. Clement Reid sent me specimens of similar dimensions 
which he collected last year (1896) at Affpuddle. I have 
found them equally large at Puncknowle, J. C. JL-P. 
Generally distributed. 
Var. carinata, Jeffreys. Winfrith, Daniel. 
Weymouth, Damon. 
White with translucent bands, Maiden Castle and Portland, 
LH. F. Burrows. 
Almost black with traces of lighter peripheral zones, Portland, 
E.R. Sykes. 
Fossil: Portland, Pleistocene bed, cliff near the Bill, 
Prestwich. 
HELICELLA (fer) Risso, 1826. 
29. H. ericetorum (J/uli.) Helix ericetorum, J/ill. 
Pulteney, p. 53, pl. 20, f. 8. 
Dry heaths, downs, woods, hedge-banks, 
Generally distributed. 
Tilly Whim, J. H. Austen. 
Especially large and dark banded ; Gadcliff and Worbarrow, 
J.C. M.-P. 
Var. alba, Charpentier. 
Hedge-banks, Liscombe Bottom ; quarry on hill above 
Kimmeridge, J. C. 1L-P. 
Fossil: Blashenwell, Quaternary tufaceous deposit. 
