BllISTOL LAND AND FBESH-WATER MOLLUSCA. 287 



Yar. alba. Jeff. 



St. Vincent's Eocks (J. & F. H.) 



3. P. umbilicata. Draparnaud. 



{^') Everywhere (E. C. J.), (•'') Hotwell Eoad, near 

 Clifton Downs (T. G. P.), Old Wells, near Westbury 

 (J. & F. H.) 



4. P. marginata. Draparnand. (P. muscorum. F. & H.) 



E. C. W.), Quarry land, near Redland (J. & F. H.), 

 (^^) Downs, under stones (T. a. P.), 1862, Sea Mills. 



Genus 7. Vertigo. Miiller. 



1. V. antivertigo. Draparnaud. 



Downs, under stones (T. G. P.), 1862, Boiling Wells 



(AY. W. S.) 



3. Y. pygmsea. Draparnaud. 



Downs, under stones, (T. G. P.), 1862, Quarry land, 

 near Eedland (J. & F.) 



9. Y. minutissima. Hartmann. 



Stapleton (T. G. P.), 1864, Frome Glen, (W. W. S.) 



Genus 8. Balia. Prideaux. 



1. B. perversa. Linne. (B. fragilis. F. & H.) 



Old oak trees at Ashton and Sea Mills (E. C. W.), old 

 wells near Westbury (J. «& F. H.) 



Genus 9. Clausilia. Draparnaud. 



\j C. rugosa. Draparnaud. C. nigricans. (F. & H.) 



(■^') Common everywhere, (*)Leigh Woods, (*') Sea 

 Mills, (^0 Downs (E. C. W., J. & F. H., E. C. J.) 



Yar. ii. Everetti. Miiller. 



Found by Miiller. (See G. Jeffrey's British Conch., 

 vol. 1, p. 279.) 



Yar. iv. tumidula. Jeff. 



Occasionally on old walls, &c., Westbury (J. & F. H.), 

 Stoke Bishop (L. C. J.) 



