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Characiformes (Characins) >
Characidae (Characins; tetras) > Cheirodontinae
Etymology: Odontostilbe: Greek, odous = teeth + Greek, stilbe, es = lamp (Ref. 45335); splendida: From the Latin word splendidus, meaning splendid, grand, admirable.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch; diepte 1 - ? m (Ref. 75063). Tropical
South America: Rio Orinoco basin.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 3.6 cm SL mannelijk / geslacht onbekend; (Ref. 75063); 4.2 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 11. Distinguished readily from all congeners including the sympatric Odontostilbe pulchra and Odontostilbe pao by its anterior position of the adipose fin, at vertical through last 2nd or 3rd anal-fin ray insertions. Can be further differentiated from Odontostilbe pulchra by a group of morphometric characters in males: snout pointed and longer 24.1-26.9% HL (vs. short and blunt in Odontostilbe pulchra, 18.0-26.0% HL); shorter pectoral-fin length 20.9-23.5% SL (vs. 21.3-26.4% SL); smaller anal-fin base 24.9-26.8% SL (vs. 26.0-31.4% SL); shorter caudal peduncle length 11.5- 13.0% SL (vs. 12.5-16.0% SL) ; longer snout-pelvic fin origin distance 45.1-48.7% SL (vs. 42.3-47.9% SL); and longer snout-anal fin origin distance 63.7-68.6% SL (vs. 58.6-64.0% SL). Furthermore, mature males have hooks on 1st to 6th-7th anal-fin rays (vs. hooks on 1st to 22nd anal-fin branched rays in Odontostilbe pulchra). Mature males usually have the 2nd unbranched dorsal-fin ray elongate, not present in Odontostilbe pulchra. Females and immature specimens, and not well-developed males can be differentiated from Odontostilbe pulchra by the following features: maxillary teeth 3-4, mostly 3 (vs. 2-3, mostly 2 in Odontostilbe pulchra; lateral line with 36 scales, one specimen 35 (vs. 33-37, mostly 34-35). Differs also from Odontostilbe fugitiva by its gill rakers counts on lower branch, averaging 11 (vs. usually 12) (Ref. 75063).
Found in muddy and sandy bottom and water depth nearly 1 m (Ref. 75063).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Bührnheim, C.M. and L.R. Malabarba, 2007. Redescription of Odontostilbe pulchra (Gill, 1858) (Teleostei: Characidae: Cheirodontinae), and description of two new species from the río Orinoco basin. Neotrop. Ichthyol. 5(1):1-20. (Ref. 75063)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00401 - 0.02074), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.5 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
