The Hippopotamyrus castor lives in the demersal, freshwater environment.
Hippopotamyrus castor Pappenheim, 1906Paramyomyrus aequipinnis Pellegrin, 1927; (synonym) - Hippopotamyrus discorhynchus Gosse, 1984Mormyrus discorhynchus Peters, 1852; (valid as) Marcusenius tanganicanus Boulenger, 1906; (synonym) Marcusenius cubangoensis Pellegrin, 1936; (synonym) - More
Rypoun bobří in Czech (česky)
高身河馬長頜魚 in Mandarin Chinese
高身河马长颌鱼 in Mandarin Chinese