Helicinidae is a family of small tropical land snails which have an operculum. They are terrestrial operculate gastropod mollusks in the superfamily Helicinoidea.
Alcadia is a genus of tropical and subtropical land snails with an operculum, terrestrial gastropod mollusks in the subfamily Helicininae of the family Helicinidae.
Helicina guppyi is a species of tropical land snail with an operculum, a terrestrial gastropod mollusk in the family Helicinidae.
Alcadia conuloides is a species of tropical land snail with an operculum, a terrestrial gastropod mollusk in the family Helicinidae.
Alcadia hispida is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia aurantia is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia brownii is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia major is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia bermudezi is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia camagueyana is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia nuda is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia boeckeleri is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia hojarasca is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia bullula is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia decussata is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia nodulosa is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia chocoensis is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia concinna is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Alcadia citrinolabris is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
