Creatures in Crisis
Photograph of Heterogen (Heterogen longispira), recorded as Endangered
Heterogen (Heterogen longispira). Image via Wikimedia Commons.

Endangered

Heterogen

Heterogen longispira

Heterogen is a gastropod in the family Viviparidae (order Architaenioglossa) — Heterogen longispira, recorded as Endangered.

Status
Endangered
Scientific name
Heterogen longispira
Taxonomy
Gastropoda · Architaenioglossa · Viviparidae · Heterogen

The gastropod

Gastropods are snails and slugs. The animal is the soft body; the shell, when present, is grown, not worn like a stone.

Range and habitat

Heterogen is endemic to Lake Biwa, Japan.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

Diet

Snails move on a single foot and feed with a rasping tongue. Island and spring species rarely recolonise once the site is emptied.

In crisis

Heterogen is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.

Sources

Written for this catalog from the English Wikipedia article on Heterogen — often a short stub, Wikidata item Q1763676. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.

Photograph via Wikimedia Commons. Wikipedia · Wikidata · IUCN Red List.

Also in this catalog

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Vaquita

Phocoena sinus
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Javan rhinoceros

Rhinoceros sondaicus
Photograph of Sumatran orangutan (Pongo abelii), recorded as Critically EndangeredCR

Sumatran orangutan

Pongo abelii
Photograph of Axolotl (Ambystoma mexicanum), recorded as Critically EndangeredCR

Axolotl

Ambystoma mexicanum

Quick answers

What is Heterogen?
Heterogen is a gastropod in the family Viviparidae (order Architaenioglossa) — Heterogen longispira.
What is the conservation status of Heterogen?
Endangered, as the IUCN category stored on Wikidata for Heterogen longispira. Confirm the official assessment on iucnredlist.org.
Where does Heterogen live?
Heterogen is endemic to Lake Biwa, Japan.
Why is Heterogen in crisis?
It is Endangered on Wikidata. Read the official Red List assessment for the criteria.
Is this the IUCN Red List page for Heterogen longispira?
No. This is a researched catalog account. The Red List is the assessment.
Is Heterogen a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.