Mirus stalix
| Mirus stalix | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Enidae |
| Genus: | Mirus |
| Species: | M. stalix
|
| Binomial name | |
| Mirus stalix (W. H. Benson, 1863)
| |
| Synonyms | |
|
Bulimus stalix W. H. Benson 1863 | |
Mirus stalix is a species of air-breathing land snails, a terrestrial pulmonate gastropod in the subfamily Eninae of the family Enidae.[1]
M. stalix are endemic to Sri Lanka.[2]
They were first described in 1863 by British malacologist William Henry Benson.[3]
Description
[edit]The length of the shell attains 20 mm (0.79 in), its diameter 7 mm (0.28 in).
(Original description in Latin) The shell is narrowly perforate, oblong-conic, somewhat solid, with obliquely irregularly folded striations and a very densely spirally striated epidermis. It is chestnut-coloured, marked with oblique streaks, while the suture, base, and apex are whitish.
The spire is elongate-conic, with a somewhat blunt apex and a slightly impressed suture, sometimes margined. There are seven slightly convex whorls, the body whorl slightly compressed at the base and barely ascending anteriorly.
The aperture is somewhat oblique, narrowly pear-shaped, chestnut-coloured inside, with a slightly expanded, faintly reflexed, whitish peristome. The margins are distant and not converging, with the columellar margin broad and joined above by an oblique chestnut-coloured callus. [3]
References
[edit]- ^ Preece, R. C., White, T. S., Raheem, D. C., Ketchum, H., Ablett, J., Taylor, H., Webb, K. & Naggs, F. (2022). William Benson and the golden age of malacology in British India: Biography, illustrated catalogue and evaluation of his molluscan types. Tropical Natural History. No. 6: Supplement: 1-434., available online at https://li01.tci-thaijo.org/index.php/tnh/article/view/257073/175390 page(s): 151, Fig. 66 E; note: neotype designation
- ^ Naggs, F. & Raheem, D. (2000). Land snail diversity in Sri Lanka. An illustrated guide prepared for the launch of the Darwin Initiative programme. Photography by Harold Taylor. The Natural History Museum, London. pages i-xiii, 1-203. 246 coloured plates. ISBN 0565091514 (printed version), ISBN 0565091565 (compact disc)., available online at https://www.nhm.ac.uk/our-science/data/tropical-land-snails/taxa.dsm
- ^ a b Benson, W. H. (1863). Characters of new land-shells from the Andaman Islands, Burmah, and Ceylon, and of the animal of Sophina. The Annals and Magazine of Natural History, Series 3. 11(65): 318-323., available online at https://biodiversitylibrary.org/page/22221772 page(s): 322