Dillwynella
Genus of gastropods
From Wikipedia, the free encyclopedia
Dillwynella is a genus of sea snails, marine gastropod mollusks in the family Skeneidae.[1]
| Dillwynella | |
|---|---|
| |
| Apertural view of a shell of Dillwynella modesta | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Family: | Skeneidae |
| Genus: | Dillwynella Dall, 1889 |
| Type species | |
| Teinostoma (Dillwynella) modesta Dall, 1889 | |
The genus name of Dillwynella is in honour of Lewis Weston Dillwyn (1778 – 1855), who was a British porcelain manufacturer, naturalist and Whig Member of Parliament (MP).
Description
The minute, depressed, porcellanous shell has a thin horny operculum. It consists of comparatively few whorls. The shell is imperforate, but with a depression bounded by a riblet in the umbilical rib outside of the columella. The few whorls have a thin fugacious epidermis. The outer lip is thin . The columella has no teeth, projections, or folds, passing smoothly into the anterior margin.[2]
Species
Species within the genus Dillwynella include:
- † Dillwynella aulacophora Cossmann, 1913 [3]
- Dillwynella fallax Hasegawa, 1997
- Dillwynella haptricola B.A. Marshall, 1988
- † Dillwynella houzeaui Cossmann, 1913 [3]
- Dillwynella ingens B.A. Marshall, 1988
- Dillwynella lignicola B.A. Marshall, 1988
- Dillwynella modesta (Dall, 1889)
- Dillwynella planorbis Hasegawa, 1997
- Dillwynella sheisinmaruae Hasegawa, 1997
- † Dillwynella texana G. Harris, 1895 [4]
- Dillwynella vitrea Hasegawa, 1997[5]
- Dillwynella voightae Kunze, 2011
