American Malacological Bulletin 16 : 65 -- 69 .
Aegopinella nitidula ( Draparnaud , 1805 ) ( Gastropoda : Zonitidae ) in British Columbia -- first confirmed North American record .
North American Malacological Bulletin 16 : 65 -- 69 .
Aegopinella nitidula ( Draparnaud , 1805 ) ( Gastropoda : Zonitidae ) in British Columbia -- first confirmed North American record .