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Hoplisoma urucu (Britto, Wosiacki & Montag, 2009) |
Image contributors to this species: |
Ian Fuller (1) |
ScotCat Sources: |
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Other Sources: |
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Relevant Information: |
Similar to CW020 which was thought to be Brochis arcuata (Lineage 8) but has proven to be the CorydorasWorld code number CW036, Brochis arcuata (formerly Corydoras arcuatus). Description: Dorsal spines (total): 1; Dorsal soft rays (total): 8; Anal soft rays: 8. Distinguished from all its congeners except Brochis arcuata, Corydoras narcissus (Lineage 1), and Gastrodermus gracilis (Lineage 5), by having a long, arched, dark stripe, running parallel to the dorsal profile and extending at least from the anterior margin of the first dorsolateral body plate to the caudal peduncle. Can be diagnosed from Brochis arcuata, Gastrodermus gracilis, and Corydoras narcissus in having the arc-like stripe terminating posterior to the orbit (vs. extending onto snout). Further differs from Brochis arcuata by having fewer free vertebrae (21 vs. 27); lateral profile of the snout distinctly rounded (vs. nearly straight); a greater preadipose distance (84.0-86.7% SL, vs. 82.9-83.8% SL); and the posterior limit of the cleithrum at a vertical through the dorsal-fin spinelet (vs. between the third and fourth dorsal-fin rays); from Gastrodermus gracilis by having fewer free vertebrae (21 vs. 27); arched stripe extending posteriorly to the base of the lower caudal-fin rays (vs. reaching the base of the upper caudal-fin rays); and the second infraorbital contacting only the sphenotic (vs. contacting both the sphenotic and compound pterotic); from Corydoras narcissus in having the arched stripe extending posteriorly across the lower caudal-fin rays (vs. extending over the lower caudal-fin rays); lateral profile of the snout distinctly rounded (vs. nearly straight); and minute and weak pectoral-spine serrations (vs. large and strong serrations). Lineage: Placed in Lineage 9, the "short-snouted" species with the designated type species: C. punctatus. A revision in the future would constitute the resurrection of the genus name Hoplisoma (Agassiz, 1846). As of the latest revision (Dias et al 2024) Corydoras urucu 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 urucu: Named for the type locality, the Rio Urucu basin. Originally, the word comes from the Tupi (‘‘uru-ku’’) for red, derived from the colour of the fruit of the ‘‘urucuzeiro’’ (Bixa orellana L.), low tree of the family Bixacea, native from tropical America. A noun in apposition. Remarks: This species is still found on some online sources as Corydoras urucu. |
Common Name: |
None |
Synonyms: |
Corydoras urucu |
Family: |
Callichthyidae |
Distribution: |
South America: Brazil, Amazonas State, Coari Igarapé da Onça, Rio Urucu basin, tributary of Lago Coari, Rio Solimoes system. |
Size: |
3.0cm (1¼ins) |
Temp: |
23-27°C (73-81°F) |
p.H. |
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6.5-7.2. |
Reference: |
Alexandrou, Markos
& Taylor, Martin. (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited. |
Family: Callichthyidae Back to Ident-A-Cat Click on Thumbnails |
 Hoplisoma
urucu |
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