Mercuria similis

Mercuria similis is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.[1]

Mercuria similis
Shell of Mercuria similis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Hydrobiidae
Genus: Mercuria
Species:
M. similis
Binomial name
Mercuria similis
(Draparnaud, 1805)
Synonyms[2]
  • Amnicola confusa Frauenfeld, 1863
  • Cyclostoma simile Draparnaud, 1805
  • Mercuria confusa (Frauenfeld, 1863)
  • Pseudamnicola confusa (Frauenfeld, 1863)
  • Pseudamnicola similis (Draparnaud, 1805)

This species only tolerates very low salinities, and is perhaps better characterized as a freshwater snail.

Description

The 3–4 mm. high shell is fragile and translucent yellow-white in colour (but often coated with dark deposits). The animal is entirely and uniformly pale and has pale tentacles. Mercuria similis has a proportionately larger body whorl than other hydrobiids.

The shell is short-conical and 3.90–4.50 mm high (Vic-la-Gardiole, Hérault), with a large oval aperture. The penis is long and slim, acute at its distal end, the penial appendix is broad and shorter than the penis which lies on the appendix.

Geographic distribution

References

  1. Cianfanelli, S.; Prié, V.; Bodon, M.; Giusti, F.; Manganelli, G. (2010). "Mercuria similis". IUCN Red List of Threatened Species. 2010: e.T155342A4778564. doi:10.2305/IUCN.UK.2010-4.RLTS.T155342A4778564.en. Retrieved 16 November 2021.
  2. "Mercuria similis". WoRMS. World Register of Marine Species. Retrieved 30 May 2022.
  • Peter Glöer, Hans D. Boeters, Frank Walther Species of the genus Mercuria Boeters, 1971 (Caenogastropoda: Truncatelloidea: Hydrobiidae) from the European Mediterranean region, Morocco and Madeira, with descriptions of new species Folia Malacologica 11/2015; 23(4). DOI: 10.12657/folmal.023.024 online Description, images


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