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Calle Velez, Juan Cristóbal (1)

This genus has been in confusion for a good number of years now especially with another close member of the Pimelodidae family, Pimelodus. These notes are the following distinguishing characteristics from the two genus. Pimelodella: Adipose fin long, low with a curved margin. The humeral process is long and spiky. Body usually plain with a dark lateral stripe; rather depressed body. Pimelodus: Adipose fin short, high, with a straight or sloping margin. Humeral process broad, triangular. Body variously patterned, usually quite deep, like Synodontis. Habitat: This species is endemic to Colombia where it is known from the San Juan, Baudó, Dagua, Anchicayá, Patía and Guapi rivers. Its type locality is Río Condoto and Río Sipí, in the Upper San Juan River basin. Aquarium Care: Treat as you would do with any member of the Pimelodus in that they will be predatory on small fishes in the aquarium and it is also better to keep them in small groups rather than singularly, as this will dilute the aggression. Diet: Will eat any aquarium prepared foods such as tablets, pellets, frozen and live foods. Not fussy eaters. Etymology: The genus name of Pimelodella: Pimel = fat; odella = a little tooth, (a little Pimelodus). The specific name of eutaenia: eu-, well or very; taenia, band, referring to “strong” blackish stripe from snout through eye to base of caudal fin. Remarks: Pimelodella eutaenia occurs in less than ten locations and there is a continuing decline in habitat quality due to mining and deforestation. However, due to the wide distribution of this species (EOO = 41,000 km2), it does not qualify for a threatened category. Therefore, it is listed as Least Concern (IUCN 2016).

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Heptapteridae

South America: San Juan River to Atrato River basins, Colombia. Type locality: Rio Condoto and the Rio Sipi [Colombia].

14.5cm. (5¾ins) TL.

23-26°C (73-79°F)

6.0-7.0.

Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.
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. 2023. FishBase. World Wide Web electronic publication. www.fishbase.org, version.
Repositorio Institucional de Documentación Científica. Instituto de Investigación de Recursos Biológicos Alexander von Humboldt.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.
Villa-Navarro, F., Mesa-Salazar, L., Sanchez-Duarte, P. & Usma, S. 2016. Pimelodella eutaenia. The IUCN Red List of Threatened Species 2016.