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Scleronema minutum (Boulenger, 1891)

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Description: The Scleronema genera is distinguishable from Trichomycterus and Eremophilus by having a long dermal flap on the opercle and by having a maxillary bone that is larger than its accociated barbel. There is a patch of spines on the interoperculum and usually also on the operculum. Etymology: The genus name minutum: Greek, skleros = hard + Greek, nema = filament. The specific name minutum: Minute, known for its small size.

Common Name:

None

Synonyms:

Trichomycterus minutus

Family:

Trichomycteridae

Distribution:

South America: Rio Grande do Sul, Brazil. La Plata basin, Argentina. Type locality: San Lorenzo district [= São Lourenço das Missões], Brazil.

Size:

4.0cm (1¾ins)

Temp:

p.H.

6.0-7.0.

IUCN Red List

Scleronema minutum is frequent and abundant in the lower Río Uruguay and Laguna dos Patos system, also occurring in the lower Río Paraná. The species presents a large EOO (392,393 km2) and no significant were detected (although the species may be sensitive to vegetation loss as a result of agricultural expansion; further research on exact impacts is therefore required). As such, given its general high abundance and frequency, the species is classified as Least Concern, (IUCN 2023).

Reference:

Brejão, G.L. 2023. Scleronema minutum. The IUCN Red List of Threatened Species 2023.
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).
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2020. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 2/2020 ).

Family: Trichomycteridae Back to Ident-A-Cat Click on Thumbnails

Scleronema minutum
Rio Yaguarón Region: Cerro Largo, Uruguay

Scleronema minutum
Dorsal view-Rio Yaguarón Region: Cerro Largo, Uruguay

Scleronema minutum
Location-Rio Yaguarón Region: Cerro Largo, Uruguay

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