Ctenoglypta newtoni
| Ctenoglypta newtoni | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Ctenoglypta | ||||||||||||
| Ancey , 1904 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Ctenoglypta newtoni | ||||||||||||
| ( Nevill , 1871) |
Ctenoglypta newtoni is an extinct land snail species that was endemic to Mount Le Pouce in Mauritius .
features
Ctenoglypta newtoni achieved a case diameter of 6.9 to 7.6 mm and a case height of 3.6 to 3.8 mm. The compressed case was made up of six flattened turns with very distinct, somewhat hollowed out seams. The umbilicus was deep and surrounded by a series of finely notched, fold-like stripes that extended for about two-thirds of the base. The mouth was small, almost as high as it was wide, and a little angular. It had a simple lip rim.
The foot was light yellow. A faint gray zone ran along the sides of the head. In specimens preserved in alcohol, the antennae near the tip are black.
Systematics
Ctenoglypta newtoni was described by Geoffrey Nevill in 1871 as Helix newtoni . In 1904 the species was placed in the monotypical genus Ctenoglypta by César Marie Félix Ancey .
status
Geoffrey Nevill already described Ctenoglypta newtoni in his first description from 1871 as a very rare species that occurs at Le Pouce. The Australian Museum has 15 specimens that were collected in the 19th century. This species has not been found alive since then.
literature
- Owen Lee Griffiths, Francois Benjamin Vincent Florens : A Field Guide to the Non-Marine Molluscs of the Mascarene Islands: (Mauritius, Rodrigues and Reunion) and the Northern Dependencies of Mauritius , Bioculture Press, Mauritius, 2006, p. 115
- Anatolij A. Schileyko: Treatise on recent terrestrial pulmonate molluscs. Part 9, Helicarionidae, Gymnarionidae, Rhysotinidae, Ariophantidae. Ruthenica, Supplement 2, 2002, p. 1238.
Web links
- Ctenoglypta newtoni inthe IUCN Red List of Threatened Species 2017.2. Listed by: Owen Griffiths, 1996. Retrieved October 3, 2017.
Individual evidence
- ↑ a b Geoffrey Nevill & Hugh Nevill: Descriptions of new Mollusca from the eastern region. The Journal of the Asiatic Society of Bengal, 40 (2), 1871, p. 6.
- ^ César Marie Félix Ancey: Notes critiques et Synonymiques , Journal de Conchyliologie, Comprenant L'étude des Mollusques, Vivants Et Fossiles, Publié, de 1861 a 1898, Sous La Direction De Crosse & Fischer, Vol. 52, 1904, p. 306