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Hisonotus maculipinnis (Regan, 1912)

Image contributors to this species:

Enzo Edgardo Ferreyra (3)

ScotCat Sources:

Other Sources:

Relevant Information:

Habitat: This species is distributed in the Parana, Rio de la Plata, Ibera, Uruguay, Iguazu, Corrientes, Colastine, Nogoya rivers and Ibera marshes (Almirón et al. 2015). The species inhabits the Grandes Rios icthyological province of Argentina (Lopez et al. 2008) and the Región Humedales del corredor fluvial Chaco-Mesopotámico, Subregión Ríos, esteros, bañados y lagunas del río Paraná corresponding to Argentine wetland classification (Benzaquen et al. 2017). Aquarium Care: Said to be a bit more problematic in the aquarium if good water quality is not adhered to. They rest on aquatic vegetation in the aquarium so long leaved plants are recommended. Cooler temperatures and a strong filtration with adequate current will fare better for this species and for this genera overall. Reproduction: Scatters eggs throughout the aquarium and are not cared for by the parents. Diet: Will feed on flake, algae, tablet foods and algae wafers. Etymology: The specific name maculipinnis: macula (L.), spot; pinnis, Neo-Latin adjective of pinna (L.), fin, i.e., finned, referring to series of dark spots on fins.

Common Name:

None

Synonyms:

Microlepidogaster maculipinnis, Otocinclus maculipinnis

Family:

Loricariidae

Distribution:

South America: Lower Paraná basin, Paraguay and La Plata River basins: Argentina, Paraguay and Uruguay. Type locality: Rio de la Plata, South America.

Size:

4.0cm. (1½ins)

Temp:

20-24°c (67-75°f.)

p.H.

6.0-7.5.

IUCN Red List

This species is considered Least Concern due to its wide area of distribution and because it is considered common. Although its habitat is facing threats, there are no direct threats to the survival of this particular species (IUCN 2023).

Reference:

Brancolini, F., Baigun, C. & Minotti, P. 2023. Hisonotus maculipinnis. 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). 784 p.
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. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 11/2025 ).

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

Hisonotus maculipinnis

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