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Astyanax turmalinensis Triques, Vono & Caiafa, 2003
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Astyanax turmalinensis
Picture by Triques, M.L.
Pictures | Google image
Picture by Triques, M.L.
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Characiformes (Characins) > Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); turmalinensis: The new species is named for Turmalina, the country in which the specimens were first collected.
Eponymy: Astyanax was the son of Hector in Greek mythology. See Homer’s Iliad for details. The reasoning for its use for a genus of characins is not explained. (Ref. 128868), visit book page.
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); turmalinensis: The new species is named for Turmalina, the country in which the specimens were first collected.
Eponymy: Astyanax was the son of Hector in Greek mythology. See Homer’s Iliad for details. The reasoning for its use for a genus of characins is not explained. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range Ecology
Freshwater; pelagic; depth range 0 - 1 m (Ref. 52302). Tropical
Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
South America: Rio Jequitinhonha basin, Minas Gerais, Brazil.
Size / Weight / Age
Short description Identification keys | Morphology | Morphometrics
Dorsal spines (total): 2; Dorsal soft rays (total): 9; Anal spines: 2 - 3; Anal soft rays: 18 - 21. Astyanax turmalinensis differs from the other species of the genus by the following combination of characters: presence of 20 to 24 anal fin rays; 34 to 36 scales in lateral lines; 1 or 2 teeth in the maxillary bone; greatest body depth at pelvic fin origin; caudal peduncle oval spot horizontally elongated, prolonging into median caudal fin rays, onward becoming a dark band laterally on the body, tapering anteriorly, to a point slightly anterior to middle of standard length; humeral black spot present, truncate anteriorly, usually circular posteriorly, extending anteroventrally, followed by a clear area and then subsequentely a vertically elongated dark area of loosely-assembled chromatophores. Snout slender, about the same mength as eye diameter; four teeth in the outer row of the premaxillary bone; posterior border of anal fin concave anteriorly.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
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Triques, M.L., V. Vono and E.V. Caiafa, 2003. Astyanax turmalinensis, a new species from the Rio Jequitinhonha basin, Minas Gerais, Brazil (Characiformes: Characidae: Tetragonopterinae). aqua, J. Ichthyol. Aquat. Biol. 7(4):145-150. (Ref. 52302)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Least Concern (LC) ; Date assessed: 07 November 2018
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
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Ecology
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Length-weight rel.
Length-length rel.
Length-frequencies
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Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Body composition
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Oxygen consumption
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Diseases & Parasites
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Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search |