Creatures in Crisis
Photograph of Spiny river snail (Io fluvialis), recorded as Endangered
Spiny river snail (Io fluvialis). Image via Wikimedia Commons.

Endangered

Spiny river snail

Io fluvialis

The spiny river snail, scientific name Spiny river snail, is a freshwater snail species, an aquatic mollusk in the Pleuroceridae family.

Status
Endangered
Scientific name
Io fluvialis
Taxonomy
Gastropoda · Pleuroceridae · Io

Appearance

The shell morphology is very variable, with some individuals totally lacking spines.

Range and habitat

This species is endemic to the Tennessee River and its larger tributaries, but it has been largely extirpated due to pollution and the construction of dams. The spiny river snail, scientific name Spiny river snail, is a freshwater snail species, an aquatic mollusk in the Pleuroceridae family. This species is endemic to the USA.

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

Spiny river snail 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 Spiny river snail, Wikidata item Q3173050. 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 Spiny river snail?
The spiny river snail, scientific name Spiny river snail, is a freshwater snail species, an aquatic mollusk in the Pleuroceridae family. This species is endemic to the USA.
What is the conservation status of Spiny river snail?
Endangered, as the IUCN category stored on Wikidata for Io fluvialis. Confirm the official assessment on iucnredlist.org.
Where does Spiny river snail live?
This species is endemic to the Tennessee River and its larger tributaries, but it has been largely extirpated due to pollution and the construction of dams.
Why is Spiny river snail in crisis?
It is Endangered on Wikidata. Read the official Red List assessment for the criteria.
Is this the IUCN Red List page for Io fluvialis?
No. This is a researched catalog account. The Red List is the assessment.
Is Spiny river snail a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.