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his is the new name given to Corydoras sp. "Asher" or sometimes known as Corydoras cf. reynoldsi. This Corydoras has been around in the trade from about 1997 and has just been named in a new paper by Marcelo R. Britto of Departamento de Vertebrados, Museu Nacional da Universidade Federal do Rio de Janeiro Brazil, and Flávio C. T. Lima of the Museu de Zoologia da Universidade de São Paulo Brazil.

 

Hoplisoma tukano

The differences are mainly the size and positions of the blotches on the body between Hoplisoma reynoldsi (formerly Corydoras) and the new Corydoras tukano. You can see these marked differences on Factsheet 51 from September 2000.

In this paper Hoplisoma weitzmani (formerly Corydoras) is also mentioned as similar with the differences cited as C. tukano having a dusky saddle between the dorsal and adipose fins, the second trunk blotch extending vertically from the adipose fin base to the anal fin base and also the presence of four stripes in the caudal fin.

Image by Author

Update: Placed in Lineage 6 which has always been classified as Corydoras (Lacépède, 1803) so a new genus would need to be described and a new type species when a new revision is carried out. As of the latest revision (Dias et al 2024) Corydoras tukano has now been placed in Lineage 9 and has the new genus name of Hoplisoma.