Rhytida clarki
CR

Rhytida clarki

Unknown

Photo: (c) tim_hopley, some rights reserved (CC BY-NC), uploaded by tim_hopley

Overview

Wainuia clarki is a species of air-breathing predatory land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.

Rhytida clarki faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in New Zealand. The species is particularly vulnerable to introduced predators such as rats and hedgehogs that consume both adults and eggs. Climate change poses additional risks through altered moisture regimes that affect the humid microhabitats essential for this terrestrial gastropod's survival.

Threat summary

Habitat

Rhytida clarki inhabits native forest floors and shrubland areas with high moisture levels and abundant leaf litter. The species requires specific microhabitat conditions including stable humidity, organic soil layers, and protection from direct sunlight.

Other threatened species in RHYTIDIDAE

Rhytida oconnoriCR

Rhytida oconnori

Unknown
VU

Natalina wesseliana

Unknown
EN

Occirhenea georgiana

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CR

Delos gardineri

Unknown

Frequently asked questions

Why is Rhytida clarki classified as Critically Endangered?
Rhytida clarki is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Rhytida clarki faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in New Zealand. The species is particularly vulnerable to introduced predators such as rats and hedgehogs that consume both adults and eggs. Climate change poses additional risks through altered moisture regimes that affect the humid microhabitats essential for this terrestrial gastropod's survival.
Where does Rhytida clarki live?
Rhytida clarki occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Rhytida clarki?
The main threats to Rhytida clarki are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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