Synodontis xiphias
CR

Synodontis xiphias

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Synodontis_xiphias

Overview

Synodontis xiphias is a species of upside-down catfish that is native to the Niger River basin of Nigeria. It was first described by German ichthyologist Albert Günther in 1864, from specimens obtained in the Niger River. The species name xiphias comes from the Greek word xiphos, meaning sword, which refers to the long snout that was observed on the stuffed type specimen.

Synodontis xiphias faces severe threats from dam construction and water extraction along the Volta River system, which has dramatically altered natural flow regimes essential for spawning. Overfishing using fine-mesh nets has depleted breeding populations, while agricultural runoff and mining activities have degraded water quality in its limited range. The species' restricted distribution makes it particularly vulnerable to these cumulative pressures.

Threat summary

Habitat

This catfish species inhabits rocky rapids and fast-flowing sections of the Volta River system in West Africa. It requires well-oxygenated waters with rocky substrates for feeding and spawning, typically found in areas with strong currents and seasonal flooding patterns.

FRESHWATER· major

Conservation measures underway

Species recovery

Frequently asked questions

Why is Synodontis xiphias classified as Critically Endangered?
Synodontis xiphias 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. Synodontis xiphias faces severe threats from dam construction and water extraction along the Volta River system, which has dramatically altered natural flow regimes essential for spawning. Overfishing using fine-mesh nets has depleted breeding populations, while agricultural runoff and mining activities have degraded water quality in its limited range. The species' restricted distribution makes it particularly vulnerable to these cumulative pressures.
Where does Synodontis xiphias live?
Synodontis xiphias occurs in Nigeria. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Synodontis xiphias?
The main threats to Synodontis xiphias are 1.1, 1.2, 3.1, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

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