Synodontis tessmanni Pappenheim 1911

Diagnosis: Body uniformly coloured; caudal fin not spotted; Interorbital distance at most 86.6% of snout length; Entire margin of opercle smooth, caudal fin without single darkpatch at base of each fin lobemaxillary barbelswith a distinct basal membrane; 21 to 24 movable mandibular teeth; Postocular length at least 60% of snout length, maxillary barbel at least 0.8 times HL; dorsal spine long prolonged by a short filament, without serrations along anterior edge and only a few (2-4) distally on posterior edge (Ref. 81251).Description: mandibular barbels with few branches, broad, partly tuberculate; snout subconical and quite long; lips well-developed, with papillae; humeral process weakly keeled, granular and pointed; adipose fin short and moderately deep; pectoral spine prolonged by a short filament, strongly serrated with twice as many serrations along anterior edge as posterior edge; pelvic fin not reaching anal fin; caudal fin deeply forked, with equal lobes; caudal peduncle as long as deep (Ref. 81251).Coloration: dorsum brownish with somewhat obscured light band along lateral line; no dark spots; ventrally lighter brown; dorsal, anal and pelvic fins with dark band and edges; caudal fin with a dark border along all edges (Ref. 81251).

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).

Dorsal spines (total): 1; Analspines: 0

Oviparous (Ref. 205). Maximum total length reported 18.6 cm (Ref. 3202).

fisheries:

Synodontis tessmanni is a species of upside-down catfish endemic to Cameroon where it is only known from the Ntem River. This species grows to a length of 18.6 centimetres (7.3 in) TL.