Oxychilus navarricus

Oxychilus navarricus, before 2002 known as Oxychilus helveticus (Blum, 1881), is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Oxychilidae, the glass snails.

Oxychilus navarricus

External images

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:
Oxychilinae
Genus:
Oxychilus
Subgenus:
Ortizius
Species:
O. navarricus
Binomial name
Oxychilus navarricus
Synonyms
  • Zonites Navarricus Bourguignat, 1870
  • Hyalina (Polita) helvetica Blum, 1881[2]
  • Oxychilus helveticus (Blum, 1881)
  • Oxychilus navarricus helveticus

Description

For terms see gastropod shell.

The 4.5-6 x 7-13 mm shell is thin and a light horny yellowish colour. It is whitish near the umbilicus and very shiny, almost smooth. The outline is almost globulous. There are 4.5-6 weakly convex whorls with weak suture. The last whorl width is 1.5 x or less of the preceding whorl which is well rounded at lower side. The umbilicus is not very wide, 1/8-1/7 of diameter. Genitalia: internal ornamentation of proximal penis consisting of more than seven longitudinal pleats, sometimes straight and distinct, sometimes wavy, slender and connected by lateral projections giving a reticulate appearance.[3]

Distribution

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

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References
  1. Bourguignat J. R. 1870. Mollusques nouveaux, litigieux ou peu connus. Revue et Magasin de Zoologie Pure et Appliquée et de Sériciculture Comparée (2) 22: 14-30, 87-97, 166-171. Paris.
  2. Blum J. 1881. Schnecken vom Weissenstein bei Solothurn. Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft 13 (10): 138-141. Frankfurt am Main.
  3. Animalbase (Welter-Schultes)


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