Biology:Synodontis haugi
| Synodontis haugi | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Mochokidae |
| Genus: | Synodontis |
| Species: | S. haugi
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| Binomial name | |
| Synodontis haugi Pellegrin, 1906
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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]
Description
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]
Habitat
In the wild, the species inhabits tropical waters in the Ogowe River basin in Gabon.[5]
References
- ↑ 1.0 1.1 1.2 1.3 "Synodontis haugi Pellegrin, 1906". scotcat.com. http://www.scotcat.com/mochokidae/s_haugi.htm. Retrieved 17 October 2016.
- ↑ 2.0 2.1 Froese, Rainer and Pauly, Daniel, eds. (2016). "Synodontis haugi" in FishBase. June 2016 version.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 "Synodontis haugi Pellegrin, 1906". Planet Catfish. 4 Aug 2006. http://www.planetcatfish.com/common/species.php?species_id=544. Retrieved 17 October 2016.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Boulenger, George Albert (1909). Catalogue of the fresh-water fishes of Africa in the British museum (Natural history). London: British Museum. pp. 436–438. https://archive.org/stream/catalogueoffresh21909brit/#page/436/mode/1up.
- ↑ 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. http://www.iucnredlist.org/details/182489/0. Retrieved 15 January 2018.
External links
Wikidata ☰ Q3765916 entry
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