Libera (gastropod)

Libera is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Endodontidae.

Originally the genus Libera was placed within the family Charopidae.

Species
Species in the genus Libera include:


 * Libera bursatella (Gould, 1876)
 * Libera bursatella bursatella (Gould, 1876)
 * Libera bursatella orofenensis Solem, 1976
 * Libera cookeana Solem, 1976
 * Libera dubiosa (Ancey, 1889)
 * Libera fratercula (Pease, 1867)
 * Libera fratercula fratercula (Pease, 1867)
 * Libera fratercula ratotongensis Solem, 1976
 * Libera garrettiana Solem, 1976
 * Libera gregaria Garret, 1884
 * Libera heynemanni (Pfeiffer, 1862)
 * Libera incognata Solem, 1976
 * Libera jackquinoti (Pfeiffer, 1850)
 * Libera micrasoma Solem, 1976
 * Libera recedens Garret, 1884
 * Libera retunsa (Pease, 1864)
 * Libera spuria (Ancey, 1889)
 * Libera streptaxon (Reeve, 1852)
 * Libera subcavernula (Tryon, 1887) - extinct, the type species
 * Libera tumuloides (Garrett, 1872) - extinct
 * Libera umbilicata Solem, 1976

Shell description
The genus Libera was described by Andrew Garrett in 1881. Garrett's type description reads as follows:

Shell small, widely umbilicated, umbilicus (in adults) strongly constricted so as to form a cavernous or pouch-like cavity; whorls 7-9, costulate or striate, last one angulata or carinate, rarely rounded; aperture subrhomboidal or securiform; peristome thin, simple, straight; parietal region with one or two, and the palate with (rarely without) two or three, internal laminae; columella emarginate and furnished with a spiral fold.

Life cycle
These snails lay their eggs into the umbilicus of their own shells.