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Celso Ikedo (3) Willian Ohara (1) Zierfisch Zentrum Austria (1)

Corydoras zawadzkii is so far known only from two tributaries to the rio Aripuanã and its conservation status is uncertain based on the currently available data of its geographic distribution. Despite that, no imminent threats to the species were detected in the area, and considering that it occurs in a protected area (Reserva Extrativista Guariba Roosevelt), Corydoras zawadzkii would be classified as Least Concern (LC) according to the International Union for Conservation of Nature (IUCN) categories and criteria (IUCN Standards and Petitions Subcommittee, 2014) (Tencatt & Ohara, 2016). Lineage: Placed in Lineage 1. When there is a revision they will stay as Corydoras (Lacépède, 1803) with the type species of C. geoffroy La Cépède, 1803. As of the latest update (Dias et al 2024), Corydoras zawadzkii has been placed in Lineage 1 and has retained the genus name of Corydoras. Aquarium Care: As this is one of the longer snouted species it will be well suited to most community tanks. A well planted tank with a soft substrate such as sand so they can bury their snouts while searching out food. Diet: Readily accepts a mixed and varied diet which includes granular foods, tablet food, frozen bloodworm and a good quality flake. Etymology: Corydoras zawadzkii is named in honour of Dr. Cláudio Henrique Zawadzki, professor at the Universidade Estadual de Maringá (UEM), for his comprehensive contributions to the knowledge of Neotropical ichthyofauna, especially of the Loricariidae. Cláudio is a dear friend that directly participates in the professional formation of the first author. Treated as a genitive. (Tencatt & Ohara, 2016).

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Callichthyidae

South America: Known from two localities, both tributaries of the rio Guariba, middle rio Aripuanã, rio Madeira basin, Mato Grosso State, Brazil.

Male 6.0cm (2½ins) Female: 6.5cm (2¾ins)

21-26°C (69-77°F)

6.0-7.2.

Alexandrou, Markos & Taylor, Martin. (2011). Evolution, ecology and taxonomy of the Corydoradinae revisited.
Angelica C Dias, Luiz F C Tencatt, Fabio F Roxo, Gabriel de Souza da Costa Silva, Sérgio A Santos, Marcelo R Britto, Martin I Taylor, Claudio Oliveira, Phylogenomic analyses in the complex Neotropical subfamily Corydoradinae (Siluriformes: Callichthyidae) with a new classification based on morphological and molecular data, Zoological Journal of the Linnean Society, 2024;, zlae053.
Ian A. M. Fuller & Hans-Georg Evers (2011). Identifying Corydoradinae Catfish Supplement 1. Ian Fuller Enterprises.
Tencatt, Luiz Fernando Caserta, and Willian Massaharu Ohara. A new long-snouted species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin. Zootaxa 4144 (3): 430–442.
Tencatt, Luiz. pers comm 2022.
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