Aspidoras

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Aspidoras
Aspidoras fuscoguttatus.jpg
Aspidoras fuscoguttatus
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Callichthyidae
Subfamily: Corydoradinae
Genus: Aspidoras
R. Ihering, 1907 [1]
Type species
Aspidoras rochai
Ihering, 1907 [1]

Aspidoras is a genus of catfishes of the family Callichthyidae from Brazil.

Contents

Taxonomy

The type species for this genus is Aspidoras rochai . The name Aspidoras is derived from the Greek aspis (shield) and dora (skin). [2]

Aspidoras is easily distinguished from the other genera of the subfamily Corydoradinae by the presence of a supraoccipital fontanel; this character is an autapomorphy for the genus. [3] Many of the species of Aspidoras are similar and often hard to distinguish. Without specimens, it is often very difficult to positively identify a species from photographs alone. They are all small species. [3] A. taurus is exceptional in that it just surpasses 5 cm in length. [4]

The monophyly of the genus has been demonstrated. [5]

Species

There are currently 18 recognized species in this genus: [6] [7] [8]

Distribution

Aspidoras species are endemic to small and shallow streams draining the Brazilian Shield. [4] The species of Aspidoras are distributed in eastern and central Brazil. [9] Most species are narrowly endemic, occurring in restricted areas of some major river drainages: A. fuscoguttatus and A. lakoi from the Paraná River system. A. albater, A. eurycephalus and A. gabrieli from the Tocantins River system. A. brunneus, A. marianae and A. microgalaeus from the Xingu River system. A. belenos, A. pauciradiatus and A. velites from Araguaia River system. A. rochai from rivers around Fortaleza. A. raimundi from the Parnaíba River. A. carvalhoi from rivers around Guaramiranga, Ceará State. A. maculosus from the Itapicuru River. A. menezesi from the Jaguaribe River. A. spilotus from the Acaráu River. A. poecilus from the Xingu River, Araguaia River, and Tocantins River systems. A. psammatides from the Paraguaçu River. A. virgulatus from the coastal rivers in Espírito Santo. A. depinnai is from the Ipojuca River basin, Pernambuco State. [3] A. taurus is known from the upper Itiquira River and upper Taquari River, both tributaries of the Paraguay River, Mato Grosso State, Brazil. [4]

In the aquarium

Aspidoras do fairly well in aquaria under similar conditions as for most Corydoras species. The water conditions that seem best are a pH of 6.8 to 7.0 and a temperature of about 22 °C to 26 °C. The species that is most likely to be found in an aquarium is the sixray corydoras, Aspidoras pauciradiatus .

References

  1. 1 2 Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Corydoradinae". Catalog of Fishes . California Academy of Sciences . Retrieved 2 December 2025.
  2. ↑ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Aspidoras". FishBase . April 2015 version.
  3. 1 2 3 Britto, M.R. (2000). "Aspidoras depinnai (Siluriformes: Callichthyidae): A New Species from Northeastern Brazil". Copeia . 2000 (4): 1048–1055. doi:10.1643/0045-8511(2000)000[1048:adscan]2.0.co;2. S2CID   54754393.
  4. 1 2 3 Lima, F.C.T. & Britto, M.R. (2001). "New Catfish of the Genus Aspidoras (Siluriformes: Callichthyidae) from the Upper Rio Paraguai System in Brazil". Copeia . 2001 (4): 1010–1016. doi:10.1643/0045-8511(2001)001[1010:ncotga]2.0.co;2. S2CID   86690111.
  5. ↑ Britto, M.R. (2003). "Phylogeny of the subfamily Corydoradinae Hoedeman, 1952 (Siluriformes: Callichthyidae), with a definition of its genera" (PDF). Proceedings of the Academy of Natural Sciences of Philadelphia. 153: 119–154. doi:10.1635/0097-3157(2003)153[0119:potsch]2.0.co;2. S2CID   85655845. Archived from the original (PDF) on 2007-09-28.
  6. ↑ Tencatt, Luiz Fernando Caserta; Britto, Marcelo R.; Isbrücker, Isaäc Jan Hendrik; Pavanelli, Carla Simone (14 October 2022). "Taxonomy of the armored catfish genus Aspidoras (Siluriformes: Callichthyidae) revisited, with the description of a new species". Neotropical Ichthyology. 20 (3) e220040. doi: 10.1590/1982-0224-2022-0040 . S2CID   252980979.
  7. ↑ Dias, Angelica C.; Tencatt, Luiz F C.; Roxo, Fabio F.; Silva, Gabriel de Souza da Costa; Santos, Sérgio A.; Britto, Marcelo R.; Taylor, Martin I.; Oliveira, Claudio (2024). "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. 203 (3) zlae053. doi:10.1093/zoolinnean/zlae053.
  8. ↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Aspidoras". Catalog of Fishes . California Academy of Sciences . Retrieved 2 December 2025.
  9. ↑ Reis, R.E. (1997). "Aspidoras". Tree of Life Web Project.
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