valvata sincera造句

• ""'Valvata sincera " "', common name the "'mossy valvata "'is a species of small freshwater snail with a gill and an aquatic gastropod mollusk in the family Valvatidae, the valve snails.
• The European valve snail can be confused with " Valvata sincera ", a native species in the Great Lakes; however, the United States species has a more spherical aperture, a wider umbilicus, a conical spire and more widely spaced and rough growth lines on the shell in comparison with the introduced species.