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Frants Lehmann (1 Stamp) Johnny Jensen's Photographic Library (1)

This species is similar to S. multitaeniatus where only slight differences can be observed. Description: An adipose fin is always present, whereas some of this family may or may not have this appendage. Dorsal spines (total): 1. Diagnosis: large species, up to 300 mm SL or more. Anterior nostrils never closer to each other than the posterior ones; inner margin of pectoral-fin spine finely denticulate; 39-70 branched anal-fin rays; 8-15 gill rakers on lower limb of first gill arch; adipose fin always present. Lower jaw reaching as far as or a little shorter than upper jaw; brownish longitudinal stripes along sides and anal fin. Body shape (shape guide): fusiform / normal; Cross section: compressed. Habitat: Found in riverine and lacustrine conditions; prefers freshwater but has also been recorded from brackish water lagoons in mixohaline water; voracious and carnivorous. Diet: When young they feed mainly on terrestrial insects (Hymenoptera, Hemiptera, Coleoptera) washed into the water and on mayfly larvae. Once they get larger they will also feed on fish. Reproduction: Oviparous, eggs are unguarded. They will spawn once a year. A female weighing around 100 grams may average 17,600 eggs although some individuals can produce as many as 217,000 eggs/kilo. Etymology: The specific name mandibularis: From the Latin "mandibula" (lower jaw), probably refering to the rather well developed mandibular barbels. Remarks: The thumbnail stamp image of this species seems to show this fish upside down.

None

Eutropius mandibularis, Eutropius liberiensis, Eutropius mentalis

Schilbeidae

Africa: West Africa, from the St. Paul to the Prah River. Type locality: Bossumprah River, Gold Coast.

45.0cm. (18ins)

23-26°C (73-79°F)

6.5-7.2.

Burgess, W.E. 1989 An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p.
Dankwa, H. & Entsua-Mensah, M. 2020. Schilbe mandibularis. The IUCN Red List of Threatened Species 2020.
De Vos, L. 1995 A systematic revision of the African Schilbeidae (Teleostei, Siluriformes). With an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 271:1-450.
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.