- Helicinidae
Taxobox
name = Helicinidae
image_width = 240px
image_caption = "Alcadia maxima "
regnum =Animal ia
phylum =Mollusca
classis =Gastropoda
subclassis =Orthogastropoda
superordo =Neritopsina
ordo =Neritoida
superfamilia =Helicinoidea
familia = Helicinidae
subdivision_ranks = Subfamilies
subdivision =Helicininae Hendersoniinae Vianinae Helicinidae is a family of small tropical land
snails which have an operculum. They are terrestrial operculategastropod mollusk s in the orderHelicinoidea .These snails are not at all closely related to the air-breathing land snails, despite a superfical similarity of the shells. The Helicinidae are in the superfamily
Neritoidea ; in other words, they are quite closely related to the marine and freshwater snails known asnerite s (the familyNeritidae ).Distribution
These snails are found in tropical and subtropical areas but they have an odd distribution: restricted to the
Caribbean islands and someIndo-Pacific and Pacific islands, as well as the edge of theAsia n andAustralia n continents.ubfamilies and genera within the family Helicinidae
* Subfamily
Helicininae
** GenusAlcadia
** GenusBourciera
** GenusHelicina
** GenusHemipoma
** GenusLucidella
** GenusOgasawarana
** GenusOlygyra
** GenusOrobophana
** GenusPleuropoma
** GenusSchasicheila
** GenusStoastoma
** GenusStoastomops
** GenusSturanya
* SubfamilyHendersoniinae
** GenusHendersonia
** GenusWaldemaria
* SubfamilyVianinae
** GenusCalidviana
** Genus Calybium
** GenusEutrochaetella
** GenusGeophorus
** GenusHeudeia
** GenusPseudotrochatella
** GenusPyrgodomus
** Genus Viana
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