Synodontis contractus Vinciguerra, 1928

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Synodontis contractus : Vinciguerra, 1928 : 24, pl. 1, fig. 1-3Pesci raccolti dal March. Saverio Patrizi nel Bacino del Congo. | David & Poll, 1937 : 238Contribution à la faune ichthyologique du Congo belge : collections du Dr. H. Schouteden (1924-1926) et d'autres récolteurs. | Hulot, 1950 b : 170Le régime alimentaire des poissons du Centre africain. Intérêt éventuel de ces poissons en vue d'une zootechnie économique au Congo belge. | Poll, 1954 b : 66Poissons de forêt des environs de Yangambi (Stanleyville) recueillis par A. Hulot. | Meinken, 1957 b : 294Schöne afrikanische Neuimporte. | Poll, 1959 c : 138Recherches sur la faune ichthyologique de la Région du Stanley Pool. | Lambert, 1960 : 26Les poissons d'aquarium du bassin du Congo. | Poll, 1962 b : 142Le rôle de l'aquariophilie dans l'étude des poissons d'eau douce de l'Afrique centrale. | Gosse, 1963 : 211Le milieu aquatique et l'écologie des poissons dans la région de Yangambi. | Poll & Gosse, 1963 b : 82Contribution à l'étude systématique de la faune ichthyologique du Congo central. | Tortonese, 1963 a : 308Catalogo dei tipi di pesci del Museo civico di storia naturale di Genova (Parte II). | De Kimpe, 1964 : 138Contribution à l'étude hydrobiologique du Luapula-Moëro. | Matthes, 1964 b : 116Les poissons du lac Tumba et de la région d'Ikela. Etude systématique et écologique. | Breder & Rosen, 1966 : 642-643Modes of reproduction in fishes. | Axelrod, 1970 : 30, figAfrica in color. | Poll, 1971 a : 382-386, fig. 178Révision des Synodontis africains (Famille Mochocidae). | Axelrod, 1974 a : 269Freshwater fishes. Book 1. | Finley, 1978 a : 39, figSome Synodontis species of the Congo basin. | Mayland, 1979 : 248Grosse Aquarienpraxis II. Tropische Aquarienfische. | Finley, 1981 c : 24, figSome Synodontis species of the Zaïre Basin. Part 1 - Revised. | Gosse, 1986 b : 12436. Mochokidae. | Burgess, 1989 : 195An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. | Robins et al., 1991 : 67World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. | Seegers, 2008 a : 401, fig.The catfishes of Africa: A handbook for identification and maintenance. | Ibala Zamba, 2010 : 251, fig. 4.10FFaune des poissons des rivières Luki et Léfini (bassin du Congo): diversité et écologie. | Mbimbi Mayi Munene & Stiassny, 2011 : 699Fishes of the Kwilu River (Kasai basin, central Africa): a list of species collected in the vicinity of Kikwit, Bandundu Province, Democratic Republic of Congo. | Monsembula Iyaba & Stiassny, 2013 : 254Fishes of the Salonga National Park (Congo basin, central Africa): a list of species collected in the Luilaka, Salonga, and Yenge Rivers (Equateur Province, Democratic Republic of Congo). | Decru, 2015 : 40The ichthyofauna in the Central Congo basin: diversity and distribution in the north-eastern tributaries. | Moelants, 2015 : 73Diversity and ecology of the ichthyofauna of the Middle and Upper Congo basin: a case-study in the region of the Wagenia falls (Democratic Republic of the Congo). | Kasongo Ilunga et al., 2020 : 1151, 1152Description of a new small-sized Synodontis species (Siluriformes: Mochokidae) that is important for local subsistence fisheries in the middle Lufira (upper Congo River, DR Congo)..
Synodontis davidi (nomen nudum) : Axelrod et al., 1962 : F. 574.10-11 (ambiguous, other synonym)Exotic tropical fishes. Looseleaf edition. | Emmens & Axelrod, 1968 : 20, 2 fig (ambiguous, other synonym)Catfish. | Poll, 1971 a : 382 (synonymy with Synodontis contractus) (ambiguous, other synonym)Révision des Synodontis africains (Famille Mochocidae). | Axelrod, 1974 a : 270 (ambiguous, other synonym)Freshwater fishes. Book 1. | Terceira, 1977 a : 42 (ambiguous, other synonym)Catfish - The Sanitation Engineers. | Ferraris, 2007 : 313 (synonym of Synodontis contracta) (ambiguous, other synonym)Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types..
Synodontis contracta : Ferraris, 2007 : 313 (senior synonym)Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types..

Attributs

DISTRIBUTION: Lien Faunafri
Aquariology : Seegers, 2008 .
Colour pattern : Poll, 1971a | Seegers, 2008 .
Common names : Lille rygsvømmermalle (Danish), Bugeye squeaker / Upsidedown catfish (English), Kuonoselkäuimari (Finnish), Davids Rückenschwimmender Kongowels (German) .
Current distribution known : middle Congo River basin, including Pool Malebo (= Stanley Pool) and the Kasai drainage .
Food habits / trophic level_references : De Kimpe, 1964 | Hulot, 1950 b | Matthes, 1964 b .
Genetics : Kasongo Ilunga at al., 2020 .
Habitat / home range : lives over muddy bottoms and among marginal vegetation in large rivers; prefers to swim upside-down and will feed in this position .
Habits_references : Matthes, 1964 b .
Morphology / anatomy : Poll, 1971a | Seegers, 2008 .
Reproduction : distinct pairing during breeding .
Reproduction_references : Breder & Rosen, 1966 .
Size : 77 mm SL, 97 mm TL .
Types :
- Synodontis contractus Vinciguerra, 1928: 24, pl. 1, fig. 1-3. Type locality: "fiume Rubi a Buta", Zaïre. Lectotype MSNG n° 26.493; paralectotypes MSNG n° 26.493 (1), MRAC n° 165.756 (1) (Poll, 1971 a).
Use and trade : commercially used as an aquarium species .