Synodontis notatus

Species of fish

Synodontis notatus

Conservation status

Least Concern (IUCN 3.1)

Scientific classification
Domain:  | Eukaryota
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Actinopterygii
Order:  | Siluriformes
Family:  | Mochokidae
Genus:  | Synodontis
Species:  |

S. notatus

Binomial name
Synodontis notatus

Vaillant, 1893

Synodontis notatus, known as the onespot squeaker,[1] the one-spot synodontis,[2] or the domino syno,[3] is a species of upside-down catfish native to the Congo Basin of the Democratic Republic of the Congo, and the Republic of the Congo.[1] It was first described by French zoologist Léon Vaillant in 1893.[2] The specific name "notatus" comes from the Latin word for "marked", as with a spot.[2]

## Description

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The body of the fish is greyish-brown to olive colored on the back, with a gold sheen on the operculum. The ventral surface is light colored. Most individuals will have a single, dark spot, but some may display multiple spots or no spots, and may not have the same number on each side.[2][3] The spots do not grow as the fish grows, so they will appear smaller in adults.[2]

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 first ray of the dorsal fin and the pectoral fins have a hardened first ray which is serrated.[3] 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.[2][3] The small adipose fin is set far back.[2]

This species grows to a length of 25 centimetres (9.8 in) SL although specimens up to 26.5 centimetres (10.4 in) TL have been recorded in the wild.[1][3]

## Habitat

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In the wild, the species inhabits tropical waters with a temperature range of 22 to 26 °C (72 to 79 °F), a pH of 6.0 – 7.5, and dH range of 4-15.[1] It has been found throughout the Congo River basin. It has also been found in the upper Kasai River systems, the Lufira River system, and the Luapula River system.[4]

## References

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1. ^ a b c d Froese, Rainer; Pauly, Daniel (eds.). "Synodontis notatus". Fishbase. June 2016 version.
2. ^ a b c d e f g "Synodontis notatus Vaillant, 1893". scotcat.com. Retrieved 17 October 2016.
3. ^ a b c d e f g h i "Synodontis notatus Vaillant, 1893". Planet Catfish. 19 Jul 2013. Retrieved 17 October 2016.
4. ^ Moelants, T. (2010). "Synodontis notatus". The IUCN Red List of Threatened Species. 2010. IUCN: e.T182728A7952843. doi:10.2305/IUCN.UK.2010-3.RLTS.T182728A7952843.en. Retrieved 15 January 2018.

## External links

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Data related to Synodontis notatus at Wikispecies

Taxon identifiers

Synodontis notatus|

* Wikidata: Q5418426
* Wikispecies: Synodontis notatus
* BOLD: 665851
* CoL: 53XQB
* FishBase: 9600
* GBIF: 2344312
* iNaturalist: 113650
* IRMNG: 11052066
* ITIS: 164155
* IUCN: 182728
* NCBI: 1273039
* WoRMS: 1019438
* ZooBank: 33BD7138-6E24-407D-A5AB-45EF66CFFDB7