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Welcome, mormyrophile!

Looking for information on mormyrid fishes? You're in the right place. Here you'll find a classification reflecting the most recent published changes to mormyrid taxonomy, a page for each mormyrid genus and species including a photograph of the type specimen, information on the electric organ discharge waveform (EOD) if known, and a bibliography including all original species descriptions and many other important works on mormyrids. We hope this site is useful to the specialist and general public alike. Have something to contribute? Say hello and request an account at the login link (upper right). This is an ongoing labor of love. Check back often to see what's been added.

How to use this site: Use the search box (upper right corner of this window) if you know the name of the taxon or author you're looking for. Alternatively, click on the "Mormyridae" tab (upper left) where you can start with an introduction to these fishes, a key to genera, and a clickable classification. 

Mormyrometer: As of 24 September 2025, there are 239 described mormyrid species we regard as valid. More await description. How many of them do you know?

Paramormyrops ntotom paratypes

Creator: John P. Sullivan & Carl D. Hopkins Creative Commons Licence

Mormyrus dorsalis Geoffrey St. Hilaire (=Hyperopisus bebe) Nile River,...

Creator: ETI BioInformatics / Wilhelm Harder Creative Commons Licence

Pollimyrus plagiostoma CUMV 97648 Congo River, D.R. Congo

Creator: John P. Sullivan Creative Commons Licence

Hippopotamyrus paugyi Waanje River, Sierra Leone

Creator: Russell Brian Tate Creative Commons Licence
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith