Dorsal spines (total): 0; Dorsal soft rays (total):
75-88; Anal spines: 0; Anal soft rays: 55 - 68; Vertebrae:
56 - 63. Diagnosis: head relatively broad, 14.2-20.9%
of standard length. Head length 21.0-27.9% SL. Wide
interorbital distance, 41.3-51.8% averaging 46.4%
of head length. Large tooth plates, width of premaxillary
tooth plate 25.9-37.2% of head length (m=29.5), width
of vomerine tooth plate 21.0-31.2% of head length.
Barbels extremely long, nasal barbel 77.8-187.5%,
maxillary barbel 142.9-305.8%, inner mandibular barbell
58.9-128.7%, and outer mandibular barbell 104.3-211.2%
of head length. Head rather rectangular in dorsal
outline; eyes more laterally located. Frontal fontanelle
long and narrow ("knife-shaped"). Occipital
fontanelle oval-shaped; pectoral spine robust and
slightly curved, strongly serrated on outside and
inside. Gill rakers on first branchial arch long and
slender; suprabranchial organ well developed, however
not completely filling the cavity. Openings of secondary
canals of lateral line irregularly placed on the body.
Cleithrum mostly embedded in soft tissue, only thin
bony ridge is exposed through skin; dorsal fin length
61.5-73.0% SL; distance from dorsal to caudal fin
-1.4-2.1% SL. Colouration: both live
and preserved specimens usually dark-coloured. 2 types
of colouration: one uniform dark brown to black on
back and sides and light on belly, and upper sides
of paired fins dark on lower sides and light on upper
sides. The other marbled, with small brown spots against
a light background on back and sides and belly whitish;
very dark unpaired fins; caudal fin with a series
of vertical bars (a light bar in the middle flanked
by dark ones). Some specimens may show irregular pattern
of small white spots on body.
coastal rivers of Benin and Nigeria over rivers Cross,
Sanaga, Wouri and Ogooué (Cameroon and Gabon)
to the Congo River basin (Democratic Republic of the
Congo, Angola, Congo Republic, Central African Republic
and Zambia). Type locality: Type
locality: Doumé [Fleuve Ogôoué].
Froese, R. and D. Pauly.
Editors. 2018. FishBase. World Wide Web electronic
publication. www.fishbase.org, version (07/2018). Teugels, G.G., 1986. A systematic
revision of the African species of the genus Clarias
(Pisces; Clariidae). Ann. Mus. R. Afr. Centr., Sci.
Zool., 247:199 p.