Diagnostic Description
provided by Fishbase
Petrocephalus congicus differs from P. haullevillii by a rosette of electroreceptor organs above the eye, which is absent in P. haullevillii (Ref. 91771).
Morphology
provided by Fishbase
Dorsal spines (total): 0; Dorsal soft rays (total): 18 - 19; Analspines: 0; Analsoft rays: 27 - 28
