Found in a shallow floodplain lagoon; substrate is mud; vegetation is dense emergent grasses and water lilies (Nymphea sp.); water depth up to 2 m; lagoon flooded during winter flood cycle and dry during the low water period .
Dorsal spines (total): 0; Dorsal soft rays (total): 19 - 22; Anal spines: 0; Anal soft rays: 27 - 31. Diagnosis: Body depth 32.7-36.8% of standard length; anal fin length 23.5-27.0% of standard length; eye diameter as defined by orbital rims 21.8-25.0% of head length; length of snout to posterior orbital rim of eye 44.9-48.1% of head length; number of dorsal fin rays 19-22; number of scales in lateral line 39-41 . No spot below dorsal fin origin . : fusiform / normal.
Behavioural data for Petrocephalus Magnitrunci is currently being reviewed.
Freshwater; demersal. Tropical central part of Okavango Delta (Ref.
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