Helenodiscus bilamellata

Last updated

Helenodiscus bilamellata
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Stylommatophora
Family: Charopidae
Genus: Helenodiscus
Species:
H. bilamellata
Binomial name
Helenodiscus bilamellata
(G. B. Sowerby I, 1844)

Helenodiscus bilamellata was a species of small air-breathing land snail, terrestrial pulmonate gastropod mollusks in the family Charopidae.

This species was endemic to Saint Helena. It is now extinct.

Related Research Articles

<span class="mw-page-title-main">Herring</span> Forage fish, mostly belonging to the family Clupeidae

Herring are forage fish, mostly belonging to the family of Clupeidae.

<span class="mw-page-title-main">Extinct in the wild</span> IUCN conservation category

A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range. Classification requires exhaustive surveys conducted within the species' known habitat with consideration given to seasonality, time of day, and life cycle. Once a species is classified as EW, the only way for it to be downgraded is through reintroduction.

The Daghestan pine vole is a species of rodent in the family Cricetidae. It is found in Russia, Georgia, Armenia, and Azerbaijan.

<span class="mw-page-title-main">Somali hedgehog</span> Species of mammal

The Somali hedgehog is a species of mammal in the family Erinaceidae. It is endemic to Somalia and Somaliland. The Somali hedgehog is nocturnal.

<span class="mw-page-title-main">Javanese shrew</span> Species of mammal

The Javanese shrew is a species of mammal in the family Soricidae. It is native to Indonesia and East Timor. It ranges throughout Java and the Lesser Sunda Islands. It has also been introduced to Ambon Island and the Aru Islands.

<span class="mw-page-title-main">Oriental shrew</span> Species of mammal

The Oriental shrew is a species of mammal in the family Soricidae. It is endemic to Indonesia.

<span class="mw-page-title-main">Pale gray shrew</span> Species of mammal

The pale gray shrew is a species of mammal in the family Soricidae. It is endemic to Pakistan and is distributed in the Shigar valley and the western edge of Deosai.

Speleoperipatus is a monospecific genus of velvet worm in the Peripatidae family, containing the single species Speleoperipatus spelaeus. This species is a pale greenish yellow, almost white, with 22 or 23 pairs of legs and no eyes. Specimens range from 27 mm to 34 mm in length. The minimum number of leg pairs found in this species (22) is also the minimum number found in the neotropical Peripatidae. This velvet worm is viviparous, with mothers supplying nourishment to their embryos through a placenta.

Helenodiscus is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae.

Helenodiscus vernoni was a species of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae.

<i>Pupisoma</i> Genus of gastropods

Pupisoma is a genus of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs or micromollusks in the family Valloniidae.

<i>Onchidoris bilamellata</i> Species of gastropod

Onchidoris bilamellata, common name the rough-mantled doris, is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Onchidorididae.

<i>Onchidoris</i> Genus of gastropods

Onchidoris is a genus of dorid nudibranchs in the family Onchidorididae. One of its members is known to prey on barnacles and the others eat bryozoans. The radula contains a rachidian tooth when fully developed, but this is vestigial in some species.

<span class="mw-page-title-main">Vulnerable species</span> IUCN conservation category

A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve.

<span class="mw-page-title-main">Endangered species (IUCN status)</span> Species which have been categorized as very likely to become extinct in the near future

Endangered species, as classified by the International Union for Conservation of Nature (IUCN), are species which have been categorized as very likely to become extinct in their known native ranges in the near future. On the IUCN Red List, endangered is the second-most severe conservation status for wild populations in the IUCN's schema after critically endangered. In 2012, the IUCN Red List featured 3,079 animal and 2,655 plant species as endangered worldwide. The figures for 1998 were 1,102 and 1,197 respectively.

References

  1. Mollusc Specialist Group (1996). "Helenodiscus bilamellata". IUCN Red List of Threatened Species . 1996: e.T9770A13014939. doi: 10.2305/IUCN.UK.1996.RLTS.T9770A13014939.en . Retrieved 15 November 2021.