degeni, Petrocephalus Boulenger [G. A.] 1906:434 [Annals and Magazine of Natural History (Series 7) v. 17 (no. 101) (art. 49); ref. 574] Mouth of Katonga River, Lake Victoria [Victoria Nyanza], Uganda, Holotype (unique): BMNH 1906.5.30.84. •Synonym of Petrocephalus catostoma (Günther 1866) -- (Gosse 1984:111 [ref. 6169], Seegers 1996:82 [ref. 23725], Seegers et al. 2003:29 [ref. 28087]). •Valid as Petrocephalus degeni Boulenger 1906 -- (Kramer et al. 2012:2232, 2235 [ref. 32160], Akoth et al. 2023:8 [ref. 40069]). Current status: Valid as Petrocephalus degeni Boulenger 1906. Mormyridae. Distribution: East Africa: Lake Victoria basin. Habitat: freshwater.