Helisoma
Encyclopedia
Helisoma is a genus
of freshwater air-breathing snail
, a pulmonate gastropod mollusk in the family Planorbidae
, the ram's horn snails.
Species brought into synonymy :
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of freshwater air-breathing snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...
, a pulmonate gastropod mollusk in the family Planorbidae
Planorbidae
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks....
, the ram's horn snails.
Species
Species within the genus Helisoma include:- Helisoma ancepsHelisoma ancepsHelisoma anceps, common name the two-ridge rams-horn, is a species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.-Distribution:...
, sometimes shown as PlanorbellaPlanorbellaPlanorbella is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells.-Understanding the shell coiling:...
anceps
Species brought into synonymy :
- Helisoma campanulatum (Say, 1821) : synonym of Planorbella campanulata (Say, 1821)