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Steindachneridion scriptum (Miranda Ribeiro, 1918)

Image contributors to this species:

Evandro Carlos Wollmann (1) Freshwater Fish from Uruguay 2nd. edition (1)

ScotCat Sources:

Other Sources:

Relevant Information:

Description: Steindachneridion scriptum differs from its congeners by having the combination of the following characters: supraoccipital process distant from anterior nuchal plate by length of one orbital diameter; premaxillary tooth plates united and with groove medially, slightly curved and sharp in distal region; vomer with single and oval shaped tooth plate; and 15 to 17 gill rakers on first branchial arch. Head depth shorter than head width (64.2 to 86.2%); and head width 21.1 to 26.0% of SL. Orbit small 21.2 to 31.7% of interorbital distance and 7.3 to 10.1% of HL; mouth large, its width 38.7 to 47.2% of HL. Lips thin, maxillary barbel long, surpassing pectoral fin tip and reaching vertical through dorsal-fin insertion. Caudal peduncle depth 32.0 to 41.5% of head length; caudal fin deeply notched; upper lobe larger than lower; both tips slightly rounded. Colouration: Ground colour displaying body light greyish, abdomen whitish, with elongated or striated black blotches and dark dots irregularly scattered on head, trunk, rays and membrane fins. Etymology: The specific name scriptum: written, referring to black “scribbles” (translation, i.e., elongated or striated blotches) irregularly scattered on upper body.

Common Name:

None

Synonyms:

Steindachneria scripta, Steindachneridion scripta

Family:

Pimelodidae

Distribution:

South America: Brazil, upper rio Paraná, and rio Uruguay basins. Type Locality: Itaqui [Rio Grande do Sul, Brazil].

Size:

80.0cm. (31ins)

Temp:

22-27°C (71-81°F)

p.H.

6.0-7.2.

Reference:

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. 2011. FishBase. World Wide Web electronic publication. www.fishbase.org, version.
Garavello, Julio Cesar., Revision of genus Steindachneridion (Siluriformes: Pimelodidae). Neotropical Ichthyology, 3(4):607-623, 2005.
Loureiro M, González-Bergonzoni I, Teixeira de Mello F. 2023. Freshwater Fishes of Uruguay. Second edition. Vertebrate Zoology Laboratory, Faculty of Sciences, University of the Republic.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.

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

Steindachneridion scriptum

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