Myosotella myosotis, common name the mouse ear snail, is a European species of small salt marsh snail, a terrestrial pulmonate gastropod mollusc in the family Ellobiidae.[1]

Myosotella bicolor
Shell of Myosotella bicolor (specimen at the Natural History Museum, Rotterdam)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Ellobiida
Family: Ellobiidae
Genus: Myosotella
Species:
M. bicolor
Binomial name
Myosotella bicolor
(Morelet, 1860)
Synonyms

Auricula bicolor Morelet, 1860

Description

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The length of the shell attains 11 mm (0.43 in), its diameter 4.7 mm (0.19 in).[citation needed]

(Original description in Latin) The fusiform-ovate shell is imperforate, with only occasional slits, and has a somewhat solid structure with fine striations. Its coloration is a grayish-tawny, with a pointed spire that is dark violet-brown. The shell comprises 8 slightly convex whorls, with the body whorl attenuated at the base and nearly equal in length to the spire. The suture is impressed and subtly margined. The aperture is narrowly semi-oval, slightly darkened within, and displays two folds. The parietal fold is compressed below the middle, crossing transversely, while the columellar fold is oblique and twisted. The peristome is whitish, simple, straight, and sharp, with a columellar margin that is dilated, reflected, and often adnate.[2]

Distribution

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This species occurs on the Azores.[citation needed]

References

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  1. ^ Myosotella bicolor (Morelet, 1860). 10 August 2024. Retrieved through: World Register of Marine Species.
  2. ^ Morelet, A. (1860). Iles Açores. Notice sur l'histoire naturelle des Açores suivi d'une description des mollusques terrestres de cet archipel. Paris: Baillère et fils. pp. 1–214.   This article incorporates text from this source, which is in the public domain.

Further reading

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  • Martins A.M. de F. & Mendes A.R.M. ( (2013). "Do cosmopolitans speciate? Anatomical diversity of Myosotella in Azores. World Congress of Malacology, Ponta Delgada, 21-28 July 2013, Abstracts". Açoreana. supl. 8: 144–145.