---
title: "Red triangle slug"
description: "Triboniophorus graeffei — Andere dieren. The red triangle slug, Triboniophorus graeffei, is a species of air-breathing land slug, a terrestrial pulmonate gastropod molluscs in the family Athoracophoridae, the leaf-veined slugs."
canonical: https://animalchecklist.com/nl/animal/red-triangle-slug
last_updated: 2026-09-20
---

# Red triangle slug

> Triboniophorus graeffei — Andere dieren. The red triangle slug, Triboniophorus graeffei, is a species of air-breathing land slug, a terrestrial pulmonate gastropod molluscs in the family Athoracophoridae, the leaf-veined slugs.

- Scientific name: *Triboniophorus graeffei*
- Category: `other` (Andere dieren)
- Habitats: `forest` (Bos)
- iNaturalist observations: 5107
- Wikidata: [Q3075433](https://www.wikidata.org/wiki/Q3075433)
- iNaturalist taxon: [369073](https://www.inaturalist.org/taxa/369073)

## Names

- en: Red Triangle Slug
- nl: Red triangle slug

## Countries with the most observations

AU (4933)

## Summary

The red triangle slug, Triboniophorus graeffei, is a species of air-breathing land slug, a terrestrial pulmonate gastropod molluscs in the family Athoracophoridae, the leaf-veined slugs. Native to eastern Australia, this species is named after the distinctive red triangle marking on its back. Reaching lengths of up to 15 centimeters (about 6 inches), it is not only striking in appearance but also holds the title of Australia's largest native land slug. It is a familiar and widespread presence in its natural habitat.
Triboniophorus graeffei is the type species of its genus, Triboniophorus, the key representative of…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Red_triangle_slug

## Photo

![Red triangle slug](https://animalchecklist.com/img/animals/red-triangle-slug/medium.jpg)

Photo: Justin Cappadonna · CC0 · inaturalist — https://www.inaturalist.org/observations/190336527

## Machine access

`GET https://animalchecklist.com/api/v1/animals/red-triangle-slug?lang=nl` — see [openapi.json](https://animalchecklist.com/openapi.json).