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Down arrow Cat-eLog Data Sheet
Scientific Name Synodontis membranaceus  (Geoffroy - St. Hilaire, 1809)
Common Names Moustache Catfish
Membran-skægmalle (Denmark)
Type Locality Nile River, Egypt.
Synonym(s) Hemisynodontis membranaceus, Pimelodus membranaceus, Synodontis guentheri
Pronunciation sin oh don tiss - mem bran ass ee uss
Etymology According to Cuvier, Synodontis is an "ancient name for an undetermined fish from the Nile". It is apparently not derived, as often reported, from syn-, together and odous, tooth, presumed etymology of the lizardfish genus Synodus and in reference to the closely-spaced lower jaw teeth of both genera. membranaceus referring to the skin membranes on the maxillary and mandibular barbels.
Articles
Article Link - CotM 1999 November
Down arrow Species Information
Size 280mm or 11" SL. Find near, nearer or same sized spp.
Identification All species in the genus Synodontis have a hardened head cap that has attached a process (humeral process) which is situated behind the gill opening and pointed towards the posterior. The dorsal fin and pectoral fins have a hardened first ray which is serrated. Caudal fin is always forked. There is one pair of maxillary barbels, sometimes having membranes and occasionally branched. The two pairs of mandibular barbels are often branched and can have nodes attached. The cone-shaped teeth in the upper jaw are short. S-shaped and movable in the lower jaw. These fish produce audible sounds when disturbed rubbing the base of the pectoral spine against the pectoral girdle.

As very small fish (less than 30mm) these fish are patterned with a few large spots on their body. These fade quickly with growth. Can be confused with Synodontis batensoda but a quick look at the barbels will sort them out. In S. batensoda only the maxillary are membranous and to a lesser degree than in S. membranaceus.
There is continuing debate as to whether this fish belongs in Synodontis or within a separate monotypic genus Hemisynodontis. Over the years, its placement has moved back and forth between the two genera. The most recent osteological study (Pinton & Otera, 2010) placed this species within Synodontis, observing that there are no reliable osteological traits that warrant breaking Hemisynodontis apart from Synodontis.
Sexing Unknown
Down arrow Habitat Information
Distribution Tropical Africa - Nile basin, Chad, Niger, Senegal, Gambia & Volta River
African Waters, Nile (click on these areas to find other species found there)
African Waters, Nigeria Waters, Niger (click on these areas to find other species found there)
African Waters, Chad (click on these areas to find other species found there)
African Waters, Sénégal (click on these areas to find other species found there)
African Waters, Gambia (click on these areas to find other species found there)
African Waters, Volta (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2009.
pH 6.5 - 7.5
Temperature 22.0-25.0°C or 71.6-77°F (Show species within this range)
Down arrow Husbandry Information
Feeding In nature this fish feeds mainly on plankton but this is well substituted in the aquarium by frozen brineshrimp and daphnia which are eaten in huge quantities.
Furniture A solitary cave is all that is required for this fish.
Compatibility Peaceful and not too anti-social with other catfish excepting other members of it's own family. Youngsters appear sociable to each other but become quarrelsome with age.
Suggested Tankmates Although able to be kept with more sedate fish, boisterous Central American cichlids are an ideal mix for this fish as their messy eating habits provide plenty of food for the catfish. A good community fish for the larger tank.
Breeding Unreported.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Poissons du Nil v. 1 (part 1), pp [312], Pl. 13 (figs. 1-2).
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Last Update 2020 Jul 25 11:41 (species record created: 2001 Apr 21 00:00)