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Allan James (1) Ivor Hilton (1) Alfito Toribio Rios (1) Karsten Schönherr (1) CP Aqua Studio (1) Jorge Garcia (2)

CW045 has now been described as Corydoras colossus Tencatt, Grant, & Bentley 2023 (now Hoplisoma colossus). Similar to Hoplisoma armatum but with no spots and possesing an orange blotch to the head. Found alongside Brochis sp (CW057). Sometimes this species can take on a very dark appearance which may point to the colour and make up of the substrate or different water parameters. Lineage: Placed in Lineage 9, the "short-snouted" species with the designated type species: C. punctatus. A revision and a description in the future would constitute the resurrection of the genus name Hoplisoma (Agassiz, 1846). As of the latest revision (Dias et al 2024) Corydoras collossus has now been placed in Lineage 9 and has the new genus name of Hoplisoma. Aquarium Care: This is akin to most of this genus, very peaceful, and would be best housed with small to medium sized tankmates such as Tetras, Rasboras and Danios or in a species tank for breeding purposes. Best to purchase 6 individuals or more as they will be happier in a group. Diet: Readily accepts a mixed and varied diet which includes granular foods, tablet food, frozen bloodworm and a good quality flake. Etymology: The specific name colossus: derives from the Ancient Greek KOÀOOOÓÇ (kolossós), which means “large/giant statue”, alluding to the relatively large, robust, armoured body of the new species. A noun in apposition (Tencatt et al 2023). Remarks: This species is still found on some online sources as Corydoras colossus.

CW045

Corydoras colossus

Callichthyidae

South America: Brazil, Amazonas state near Jutai.

Male: 5.5cm (2¼ins) Female: 6.0cm (2½ins)

20-25°C (67 -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 LFC, Grant S, Bentley RF. A new color-changing species of Corydoras (Siluriformes: Callichthyidae) from the rio Jutaí, Brazilian Amazon. Neotrop Ichthyol. 2023; 21(4):e230105.
www. corydorasworld.com