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Synodontis haugi
Species of fish From Wikipedia, the free encyclopedia
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Synodontis haugi, known as the black synodontis,[1] is a species of upside-down catfish native to Gabon where it is found in the Ogowe River basin.[2] It was first collected by M.E. Haug and described by French zoologist Jacques Pellegrin in 1906, based upon a holotype discovered in the Ogooué River, near Ngomo, Gabon.[3] The specific name "huagi" is a tribute to the original collector of the species.[1]
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Description
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The body of the fish is a uniform brown or brown with indistinct darker spots on the body and fins.[4] Juveniles may also display large dark brown spots on the sides.[4]
Like other members of the genus, this fish has a humeral process, which is a bony spike that is attached to a hardened head cap on the fish and can be seen extending beyond the gill opening.[3] The humeral process on this species is obtusely keeled, much longer than deep, acutely pointed, and extends slightly beyond the occipito-nuchal process.[4] The first ray of the dorsal fin has a hardened first ray which is slightly serrated and is as long or slightly shorter than the head.[3][4] The pectoral spine is as long as the dorsal and strongly serrated on both sides, especially the inner side.[4] The caudal fin is deeply forked.[3] It has short, cone-shaped teeth in the upper jaw.[3] In the lower jaw, the teeth are s-shaped and movable.[3] The fish has one pair of long maxillary barbels, extending far beyond the operculum, and two pairs of mandibular barbels that are often branched.[1][3] The adipose fin is 3 to 3 1/2 times as long as it is deep.[4] set far back.[1]
This species grows to a length of 25 centimetres (9.8 in) SL although specimens up to 30.2 centimetres (11.9 in) TL have been recorded in the wild.[2][3]
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Habitat
In the wild, the species inhabits tropical waters in the Ogowe River basin in Gabon.[5]
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