Talopena incerta
| Talopena incerta | |
|---|---|
 | |
| shell of Talopena incerta | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Talopena |
| Species: | T. incerta |
| Binomial name | |
| Talopena incerta (Iredale, 1912) | |
| Synonyms | |
|
Monilea incerta Iredale, 1912 superseded combination | |
Talopena incerta is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[2][3]
Description
[edit]The height of the shell attains 10 mm, its diameter 9 mm. The thin, small, umbilicate shell has a turbinate shape. The convex whorls increase gradually. They are slightly flattened below the suture. The body whorl is rounded at the periphery. The colour of the shell is generally blackish-grey, irregularly rayed with white. The shell contains six whorls six. The first one and a half whorl is minute and unsculptured. The sculpture consists of spiral threads increasing in number and strength. The penultimate whorl has three major threads, the last five above the periphery. Between these run from one to three minor threads. The whole shell is overridden by very fine axial striae. The base is sculptured with about twelve even-spaced ridges, similarly overridden. The umbilicus is narrow, bounded by a thickened rib, only developed in the adult; inside white. The aperture is subquadrate. The outer lip is thin. The columella ascends with a faint reflection, and higher again reflected, when a rib enters the umbilicus. It is connected with the outer lip by a slight callus. The operculum is circular, and multispiral. Its nucleus is central, thin and horny.[4]
Distribution
[edit]This marine species occurs off the Kermadec Islands.
References
[edit]- ↑ Funnell, Greig; et al. (January 2023). Todd, Amanda (ed.). Conservation status of indigenous marine invertebrates in Aotearoa New Zealand, 2021 (PDF) (Report). New Zealand Department of Conservation. p. 30. ISBN 978-1-99-118365-1. Retrieved 27 September 2024.
- ↑ MolluscaBase eds. (2026). MolluscaBase. Talopena incerta (Iredale, 1912). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1578747 on 2026-06-07
- ↑ Marshall B. A. (1979). The Trochidae and Turbinidae of the Kermadec Ridge (Mollusca: Gastropoda). New Zealand Journal of Zoology 6: 521-552
- ↑ Proceedings of the Malacological Society of London v. 10 (1912-1913)
- Iredale T. (1912). New generic names and new species of marine mollusca. Proceedings of the Zoological Society of London (1912) 1: 217-228
External links
[edit]- Biodiversity Heritage Library (7 publications)
- World Register of Marine Species
- Iredale, T. (1918). "Molluscan nomenclatural problems and solutions.- No. 1". Proceedings of the Malacological Society of London. 13 (1–2): 30. Retrieved 22 June 2026.
