Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Stethaprioninae
Etymology: magnuspina: Name 'magnuspina' from the Latin words 'magnus' and 'spinus', meaning 'large' and 'spine', in allusion to the elongate predorsal spine of the new species.
Eponymy: Dr Canna Maria Louise Popta (1860–1929) was one of the first Dutch women to take up ichthyology and one of the first women to study at Leiden, which awarded her degree in Geology, Zoology and Botany. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.6 cm SL male/unsexed; (Ref. 138248)
Short description
Identification keys | Morphology | Morphometrics
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Garcia-Ayala, J.R., C. Oliveira and R.C. Benine, 2025. Three new species of Poptella (Characiformes: Acestrorhamphidae: Stethaprioninae) from the Tocantins-Araguaia river system, central-northern Brazil. J. Fish Biol. 1-15. (Ref. 138248)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00694 - 0.03458), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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