---
title: Headshield Slug (Chelidonura livida)
scientific_name: Chelidonura livida
common_name: Headshield Slug
taxon: Opisthobranchia

published: 2024-04-15T09:05:04.422Z
updated: 2025-11-25T13:58:09.000Z
tags: Headshield Slug, Chelidonura livida, Opisthobranchia, Red Sea, Marine Life, Diving
url: https://redseacreatures.com/taxon/invertebrate/molluscs/opisthobranchia/headshield-slug
---

# Headshield Slug (*Chelidonura livida*)

**Taxon:** Opisthobranchia (*Opisthobranchia*)  


Chelidonura livida, classified within the family Aglajidae, is a notable species of marine opisthobranch gastropod mollusk, commonly referred to as a "headshield slug." This particular species typically attains a size ranging from 10 to 50 mm in length. It is characterized by its dark black or brown pigmentation, accentuated by a pattern of vivid blue spots or rings, which can be observed across its dorsal surface.

The natural habitat of Chelidonura livida primarily includes the Red Sea, the coastal areas surrounding Madagascar, and the expansive tropical western regions of the Indian Ocean. Additionally, its presence extends to the northern coastal zones of Australia and reaches as far as the Philippines.

As a benthic organism, Chelidonura livida predominantly resides in sandy environments. It is typically found within the intertidal zone, inhabiting shallow sand flats. These habitats are essential for the species' survival, as they provide shelter and sustenance within the marine ecosystems.

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*Source: [Red Sea Creatures](https://redseacreatures.com/taxon/invertebrate/molluscs/opisthobranchia/headshield-slug)*
*Updated: November 25, 2025*