Rotaliotina discoidea explained

Rotaliotina discoidea, common name the discoid delphinula, is a species of small sea snail, a marine gastropod mollusk, in the family Liotiidae.^[1]

Description

The size of the shell varies between 4 mm and 9 mm. The shell has a discoidal shape, with a flattened spire. The periphery shows two prominentribs, connected by lattices which a subspinously project. The surface contains clathrate ridges, the interstices of which are finely striated.^[2]

Distribution

This marine species occurs off the Philippines, Papua New Guinea and Australia (Queensland) and Norfolk Island and Lord Howe Island.

References

• Jenkins, B.W. 1984. Northern Australian Liotiidae. Australian Shell News 48: 8-9
• Huang, Shih-I. (2023). Nomenclatural notes on fossil liotiid taxa and description of Cyclostrema filipino n. sp. from the Philippines (Mollusca: Gastropoda, Liotiidae). Bulletin of Malacology, Taiwan. 46: 24-46.

External links

• Reeve, L.A. 1843. Monograph of the genus Delphinula. pls 1-5 in Reeve, L.A. (ed). Conchologia Iconica. London : L. Reeve & Co. Vol. 1.
• World Register of Marine Species
  • Australian Faunal Directory: Pseudoliotina discoidea

Notes and References

1. MolluscaBase eds. (2023). MolluscaBase. Rotaliotina discoidea (Reeve, 1843). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1633240 on 2023-01-30
2. https://www.biodiversitylibrary.org/item/77914 G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia