Cylindrus obtusus

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Cylindrus obtusus
Apertural view of a shell of Cylindrus obtusus

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora

informal group Sigmurethra
Superfamily:
Helicoidea
Family:
Helicidae
Subfamily:
Ariantinae
Genus:
Cylindrus
Species:
C. obtusus
Binomial name
Cylindrus obtusus
(
Draparnaud, 1805)[2]

Cylindrus obtusus is a

mollusk in the family Helicidae
, the typical snails.

This species is endemic to Austria. It lives on certain mountain tops in the Eastern Alps, in limestone habitats, e.g. the Dürrnstein, Ötscher and Gesäuse Mountains. It often lives crowded, in moss, in rock crevices.

Draparnaud
in 1805.

Ecology

The lifespan of Cylindrus obtusus is probably several years.[3]

The dispersal rate of Cylindrus obtusus is about 3 cm per day.[3]

Reproduction

C. obtusus is one of the most prominent endemic snail species of the Eastern Alps. In the easternmost snail populations there is strong evidence for selfing (self-fertilization) as indicated by microsatellite data.[4] In eastern populations, compared to western populations, mucous gland structures employed in sexual reproduction are highly variable and deformed suggesting that in selfing organisms the functionality of these structures is reduced.[4]

References

  1. doi:10.2305/IUCN.UK.2011-1.RLTS.T6067A12393869.en
    . Retrieved 17 November 2021.
  2. ^ Draparnaud J.-P.-R. 1805. Histoire naturelle des mollusques terrestres et fluviatiles de la France. Ouvrage posthume. Avec XIII planches. pp. [1-9], j-viij [= 1-8], 1-134, [Pl. 1-13]. Paris, Montpellier. (Plassan, Renaud).
  3. ^ a b Bisenberger A., Baumgartner G., Kleewein D. & Sattmann H. (1999). "Untersuchungen zur Populationsökologie von Cylindrus obtusus (Drap. 1805) (Pulmonata, Helicidae)". Annalen des Naturhistorischen Museums Wien 101B: 453-464. PDF.
  4. ^ a b Kruckenhauser L, Haring E, Tautscher B, Cadahía L, Zopp L, Duda M, Harl J, Sattmann H. Indication for selfing in geographically separated populations and evidence for Pleistocene survival within the Alps: the case of Cylindrus obtusus (Pulmonata: Helicidae). BMC Evol Biol. 2017 Jun 13;17(1):138. doi: 10.1186/s12862-017-0977-0. PMID 28610555; PMCID: PMC5470289


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