Nesovitrea hammonis

Nesovitrea hammonis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Oxychilidae.

Nesovitrea hammonis
Nesovitrea hammonis shells
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
clade limacoid clade
Superfamily:
Gastrodontoidea
Family:
Oxychilidae
Subfamily:
Godwiniinae
Genus:
Nesovitrea
Species:
N. hammonis
Binomial name
Nesovitrea hammonis
(Strøm, 1765)[1]
Synonyms

Helix Hammonis Strøm, 1765
Perpolita hammonis (Strøm, 1765)
Retinella radiatula (Adler 1830)
Retinella viridula (Menke 1830)

Distribution

This species is known to occur in a number of countries and islands including:

Description

Nesovitrea hammonis has a light brown shell with about 3.5 whorls. The shell is shiny with characteristic regular, radial lines. These help as well to distinguish young N. hammonis from other young snails of the families Oxychilidae and Gastrodontidae.[3]

The 1.9-2.1 x 3.6-4.1 mm shell has 3-3.5 whorls. These are usually reddish brown, with regular radial riblets (9-14 riblets/mm).The umbilicus is open and not deep, and slightly excentric at the last whorl. Fresh shells have very faintly visible spiral lines under high magnification, about 10 spiral lines per radial riblet, 100-150 lines/mm.The animal is slender and blackish. The tentacles are black. The foot is narrow, and grey in colour with blackish upper sides and black spots on the sides. The mantle is light grey.[4]

Habitat

The species can live in a wide range of habitats with dry to humid conditions. It can as well tolerate acidic soils.[3] Nesiovitrea hammonis can live in open sites, like meadows, but it generally occurs in wooded habitats and is often found in beech forests.[5]

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References
  1. Strøm H. (1765). "Beskrivelse over Norske insecter, første stykke". Det Trondhiemske Selskabs Skrifter 3: 376-439, Tab. VI., page 435, Tab. VI, Fig. XVI.
  2. Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
  3. Wiese, V. (2014). Die Landschnecken Deutschlands: Finden - Erkennen – Bestimmen. Quelle & Meyer: Wiebelsheim.
  4. "Species summary for Nesovitrea hammonis". AnimalBase, accessed 25 June 2014, last change 9 December 2013.
  5. Welter-Schultes, F.W. 2012. European non-marine molluscs, a guide for species identification: Bestimmungsbuch für europäische Land- und Süsswassermollusken. Planet Poster Editions: Göttingen.
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