- Source: Petrocephalus longianalis
Petrocephalus longianalis is a species of electric fish in the family Mormyridae, it is found in the lower and upper Luapula River system in Zambia.
Size
This species reaches a length of 11.9 cm (4.7 in).
Etymology
The fishes name means longus (L.), long; analis (L.), anal, referring to higher number of anal-fin rays (30–35) compared with congeners covered in the authors' study.