Waikura
| Waikura | |
|---|---|
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| |
| Waikura coronata (holotype at MNHN, Paris) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Subcohort: | Panpulmonata |
| Superfamily: | Pyramidelloidea |
| Family: | Pyramidellidae |
| Genus: | Waikura Marwick, 1931 |
| Type species | |
| † Waikura torques Marwick, 1931 | |
Waikura is a genus of very small sea snails, pyramidellid gastropod mollusks, or micromollusks. This genus is currently placed in the family Pyramidellidae .[1]
Shell description[edit]
The original description by Marwick (1931) says that the genus consists of small shells that are subconical with a telescopic spire. The protoconch is heterostrophic and immersed. The sculpture consists of tubercles on the shoulders that extends axially for a short distance. There are no spiral sculpture except on the subsutural border. The surface is smooth and polished. The aperture is subrhombic with a highly sinuous outer lip that is convex below. Columella has a week tooth at the top.
Life habits[edit]
Little is known about the biology of the members of this genus. As is true of most members of the Pyramidellidae sensu lato, they are probably ectoparasites.
Species[edit]
Species within the genus Waikura include:
- † Waikura circumdata Laws, 1941
- † Waikura clivosa Marwick, 1931
- Waikura coronata Peñas & Rolán, 2017
- † Waikura davidi Marwick, 1943
- † Waikura elevata P. A. Maxwell, 1988
- † Waikura finlayi Laws, 1941
- † Waikura hawera Laws, 1941
- † Waikura lawsi Robba, 2013
- † Waikura singularis Lozouet, 1998
- † Waikura teres Marwick, 1965
- † Waikura torques Marwick, 1931 (Type species)
- Taxon inquirendum
- Waikura chabanesi (de Folin, 1870)
References[edit]
- ^ MolluscaBase eds. (2023). MolluscaBase. Waikura Marwick, 1931. Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=818630 on 2023-09-17
- Marwick, J. (1931). "The Tertiary Mollusca of the Gisborne District". Palaeontological Bulletin. 13: 1–177 + 18 pl.