Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Heterobranchia
Infraclassis: Euthyneura
Cohors: Tectipleura
Subcohors: Panpulmonata
SuperOrdo: Eupulmonata
Ordo: Ellobiida
Superfamilia: Ellobioidea
Familia: Ellobiidae
Subfamilia: Pythiinae
Genus: Myosotella
Species: Myosotella myosotis
Name
Myosotella myosotis (Draparnaud, 1801)
Synonyms
Auricula myosotis
Ovatella myosotis
Phytia myosotis
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.
Description
For terms see gastropod shell.
The shell is yellowish to brownish, smooth or with fine striation. It is shiny. There are 7-8 slightly convex whorls. The apertural margin is white and usually with a white layer at the parietal side. The parietalis is very strong and horizontal and often a small second parietalis is present. The columellaris is strong and the umbilicus is usually covered. The form denticulata has 3-6 short and thin folds (like drops) near the palatal margin at the inner lip.
Photo of the shell
Drawing of the shell
Molecular phylogenetics
The complete nucleotide sequence of the mitochondrial genome of Myosotella myosotis has been available since 2008.[1]
Distribution
As a native snail this species is found in the following countries and islands:
Belgium
Netherlands
Great Britain
Ireland
Mediterranean Sea coasts (Spain, Italy, Istria, Dalmatia, Albania, Greece, West and South Turkey), West European coasts to Ireland and Scotland, Black Sea, North Germany (and Baltic Sea).[2]
As an exotic, this species is found on:
The West Coast of North America
The East Coast of North America
Description
The maximum recorded shell length is 12 mm.[3]
Habitat
This species lives right at sea level (at the highest high-tide level), and so therefore the minimum recorded depth for this species is 0 m, and the maximum recorded depth is 0 m.[3]
Synonyms
Alexia (Auricula) myosotis (Draparnaud, 1801)
Alexia (Auricula) myosotis var. hiriarti de Folin, 1889
Alexia (Leuconia) micheli var. elongata Pallary, 1900
Alexia (Leuconia) micheli var. incrassata Pallary, 1900
Alexia algerica Bourguignat, 1864
Alexia balearica Dohrn & Heynemann, 1862
Alexia cossoni Bourguignat, 1887
Alexia enhalia Bourguignat, 1887
Alexia loweana Pfeiffer, 1866
Alexia myosotis (Draparnaud, 1801)
Alexia myosotis var. varicosa Fenaux, 1939
Alexia obsoleta Pfeiffer, 1854
Alexia parva Locard, 1893
Alexia pechaudi Bourguignat, 1887
Auricula (Alexia) meridionalis Brazier, 1877
Auricula biasolettiana Küster, 1844
Auricula botteriana Philippi, 1846
Auricula ciliata Morelet, 1845
Auricula dubia Cantraine, 1835
Auricula kutschigiana Küster, 1844
Auricula meridionalis Brazier, 1877
Auricula microstoma Küster, 1844
Auricula myosotis Draparnaud, 1801
Auricula myosotis var. adriatica Küster, 1844
Auricula myosotis var. elongata Küster, 1844
Auricula tenella Menke, 1830
Auricula veneta Martens, 1884
Auricula venetiensis Megerle von Mühlfeld in Villa A. & G.B., 1841
Auricula vespertina Morelet, 1860
Auricula watsoni Wollaston, 1878
Melampus turritus W. G. Binney, 1859(junior synonym)
Melampus gracilis Lowe, 1832
Myosotella denticulata (Montagu, 1803) ·
Ovatella myosotis (Draparnaud, 1801)
Ovatella myosotis salentina Palazzi & Curini Galletti, 1982
Phytia letourneuxi var. tanousi Pallary, 1912
Phytia myosotis (Draparnaud, 1801)
Tralia (Alexia) myosotis (Draparnaud, 1801)
Tralia (Alexia) myosotis f. junior Dall, 1885
Voluta denticulata Montagu, 1803 (original combination)
Voluta ingens W. Turton, 1819
Voluta reflexa W. Turton, 1819
Voluta ringens W. Turton, 1819
References
Grande C., Templado J. & Zardoya R. (2008). "Evolution of gastropod mitochondrial genome arrangements". BMC Evolutionary Biology 2008, 8: 61. doi:10.1186/1471-2148-8-61
Welter-Schultes F. W. (2012). European non-marine molluscs, a guide for species identification. Bestimmungsbuch für europäische Land- und Süsswassermollusken. Planet Poster Editions, Göttingen. ISBN 978-3-933922-75-5. 72 (range map Europe)
Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.
Draparnaud. 1801. Tableau des Mollusques terrestres et fluviatiles de la France. Montpellier et Paris, 116 p,
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