''Helisoma'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of freshwater air-breathing
snails
A snail is a shelled gastropod. The name is most often applied to land snails, terrestrial molluscs, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class Gas ...
,
pulmonate
Pulmonata or pulmonates is an informal group (previously an order, and before that, a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group inclu ...
gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, freshwater, and fro ...
mollusks
Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The num ...
in the family ''
Planorbidae
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family (biology), family of air-breathing freshwater snails, Aquatic animal, aquatic pulmonate gastropod Mollusca, molluscs. Unlike most molluscs, the blood of ram's horn sn ...
'', the ram's horn snails.
''Helisoma'' snails are an intermediate host of ''
Megalodiscus temperatus''.
[ ]
Species
The following species are recognised in the genus ''Helisoma'':
*''
Helisoma anceps''
*†''
Helisoma brevispira''
*†''
Helisoma dongdawusuensis''
*''
Helisoma eucosmium''
*''
Helisoma eyerdami''
*†''
Helisoma kettlemanensis''
*†''
Helisoma lincki''
*†''
Helisoma llanerensis''
*†''
Helisoma malheurense''
*†''
Helisoma marshalli''
*''
Helisoma minus''
*''
Helisoma newberryi''
*†''
Helisoma parallelum''
*†''
Helisoma paritis''
*''
Helisoma peruvianum''
*†''
Helisoma ringentis''
*†''
Helisoma sanctaeclarae''
*†''
Helisoma sheyangensis''
*†''
Helisoma shotwelli''
*†''
Helisoma triangulatum''
References
Planorbidae
{{Planorbidae-stub