Aegista chejuensis explained

Aegista chejuensis is a species of air-breathing land snails, a terrestrial pulmonate gastropod in the family Camaenidae.^[1]

Description

The diameter of the shell attains 10.5 mm.

The shell bears a striking resemblance to Aegista mimula, adopting a similar shape. Its complexion is a subtle pale brown, adorned with a glossy finish, and etched with delicate, irregular growth lines. Upon closer inspection, faint spiral lines adorn the base, while the overall cuticle maintains a smooth texture. The shell contains 6 - 6⅓ whorls. The aperture appears oblique, with a thin, expanded outer lip. The outer and basal margins delicately curl inward.^[2]

Distribution

This species occurs on Jeju Island, Japan and Korea^[3]

References

• Lee, J.-S. (2013). Invertebrate Fauna of Korea. Vol. 19. Number 1. Mollusca: Gastropoda: Eupulmonata, Sorbeoconcha. Gastropods I. pp. 1–102. National Institute of Biological Resources. Incheon.

Notes and References

1. MolluscaBase eds. (2024). MolluscaBase. Aegista chejuensis (Pilsbry & Hirase, 1908). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1369559 on 2024-05-14
2. https://biodiversitylibrary.org/page/41203366 Pilsbry, H. A. & Hirase, Y. (1908). Land shells of Quelpart Island (Korea). The Conchological Magazine. 2, 59–64
3. https://doi.org/10.3897/BDJ.11.e96800 Kimura, K., Chiba, S. & Pak, J. H. (2023). Molecular investigation on diversity of the land snail genus Aegista (Gastropoda, Camaenidae) in South Korea. Biodiversity Data Journal. 11: e96800.