''Helminthoglypta umbilicata'', or the Big Sur shoulderband snail, is a North American species of air-breathing land snail. It is found in California, from

Monterey Bay Monterey Bay is a bay of the Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica ...

Morro Bay Morro Bay (''Morro'', Spanish for "Hill") is a seaside city in San Luis Obispo County, California. Located on the Central Coast of California, the city population was 10,757 as of the 2020 census, up from 10,234 at the 2010 census. The town ...

. The shell has an open

umbilicus Umbilicus may refer to: *The navel or belly button *Umbilicus (mollusc), a feature of gastropod, Nautilus and Ammonite shell anatomy * ''Umbilicus'' (plant), a genus of over ninety species of perennial flowering plants *Umbilicus urbis Romae The ...

and is about in diameter. It uses reusable

love darts A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcium carbonate, calcareous or chitinous Dart (missile), dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stor ...

in mating.

Synonyms

Synonyms include: * ''Epiphragmophora tudiculata var. umbilicata'' Pilsbry, 1898 (original rank) * ''Epiphragmophora dupetithouarsi cuestana'' Edson, 1912 * ''Helix dupetithouarsi var. concursus'' Pilsbry, 1924 * ''Helminthoglypta umbilicata cayucosensis'' Pilsbry, 1925 * ''Helminthoglypta umbilicata lioderma'' Pilsbry, 1939

References

umbilicata Endemic fauna of California Endemic molluscs of the United States {{Helminthoglyptidae-stub