Family: |
Mormyridae (Elephantfishes) |
Max. size: |
9.5 cm TL (male/unsexed) |
Environment: |
demersal; freshwater |
Distribution: |
Africa: widespread in the lower and middle Congo River basin in Central African Republic, Democratic Republic of the Congo and Republic of Congo (Ref. 45441, 85331). |
Diagnosis: |
Petrocephalus grandoculis is distinguished from all other Petrocephalus species in Central Africa by the following combination of characteristics: very small mouth (mouth width 5,2-6,1 times in head length), 8-11 teeth in the upper jaw, lower jaw with 18-22 teeth, eye large (eye diameter 2,8-3,2 times in head length), snout short, dorsal fin with 24-26 branched rays, anal fin with 30-33 branched rays (Ref. 85331). Pigmentation pattern consists of two melanin markings (black patches): (1) a distinct, although generally weak, round black mark on each side of the body below the anterior base of the dorsal fin (first to fifth rays); and (2) a crescent-like mark at the base of the caudal fin on each side, not extending onto the rayed portions of the upper and lower caudal fin lobes (Ref. 85331). |
Biology: |
|
IUCN Red List Status: |
Least Concern (LC); Date assessed: 16 February 2009 Ref. (130435)
|
Threat to humans: |
harmless |
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