Fin's Fish Guide
The Castor elephantfish (Hippopotamyrus castor) is a freshwater fish of the family Mormyridae that grows up to 26 cm.
Description
The castor elephantfish is an African weakly electric fish of the family Mormyridae. The species has an elongate, laterally compressed, dark body with the dorsal and anal fins set far back, characteristic of this family. Like all elephantfishes it generates a weak electric field with an organ in the tail base, which it uses to navigate in turbid, dark water, locate prey and communicate with conspecifics. It inhabits rivers and streams, where at night it searches the bottom for insect larvae and small invertebrates. The species is harmless to humans.
Frequently asked questions
How do you recognise the Castor elephantfish?
The Castor elephantfish has an elongate, eel-like body, is mainly brown and shows a plain pattern. Weakly electric elephantfish that navigates and communicates with an electric field.
Where does the Castor elephantfish live?
The Castor elephantfish lives in fresh water and is mostly found around sand or mud bottom. Freshwater in Africa; rivers and streams.
How big does the Castor elephantfish get?
The Castor elephantfish grows to a maximum of about 26 cm.
Is the Castor elephantfish dangerous to humans?
No, the Castor elephantfish is harmless to humans. None required: this species is harmless to humans.
Is the Castor elephantfish edible?
The Castor elephantfish is rarely eaten.
Want the complete picture on the Castor elephantfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Castor elephantfish is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Hippopotamyrus
More from the family Mormyridae
Want the complete picture on the Castor elephantfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Castor elephantfish is one of 12,519 species in the app.