Synodontis haugi

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Synodontis haugi
Synodontis haugi.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Mochokidae
Genus: Synodontis
Species: S. haugi
Binomial name
Synodontis haugi
Pellegrin, 1906

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]


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]


In the wild, the species inhabits tropical waters in the Ogowe River basin in Gabon.[5]


  1. ^ a b c d "Synodontis haugi Pellegrin, 1906". Retrieved 17 October 2016.
  2. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2016). "Synodontis haugi" in FishBase. June 2016 version.
  3. ^ a b c d e f g h "Synodontis haugi Pellegrin, 1906". Planet Catfish. 4 Aug 2006. Retrieved 17 October 2016.
  4. ^ a b c d e f Boulenger, George Albert (1909). Catalogue of the fresh-water fishes of Africa in the British museum (Natural history). London: British Museum. pp. 436–438.
  5. ^ Moelants, T. (2010). "Synodontis haugi". The IUCN Red List of Threatened Species. IUCN. 2010: e.T182489A7896971. doi:10.2305/IUCN.UK.2010-3.RLTS.T182489A7896971.en. Retrieved 15 January 2018.

External links[edit]

Data related to Synodontis haugi at Wikispecies