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Anguilliformes (Eels and morays) >
Nettastomatidae (Duckbill eels)
Etymology: Facciolella: Latin, diminutive of falx, falcis = sickle (Ref. 45335); smithi: Name 'smithi' in honor of the eminent eel ichthyologist David G. Smith (1942-2024) for his
enormous contribution to the taxonomy of the world’s anguilliform fishes.
Eponymy: Dr Luigi Facciolà (1851–1943) was an Italian physician and ichthyologist who was the first to recognise and describe the Witch-Eel genus (1911) but in doing so used a preoccupied name (Nettastomella). [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien demersaal; diepte 260 - 450 m (Ref. 138158). Tropical
Western Indian Ocean: India.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 61.7 cm TL mannelijk / geslacht onbekend; (Ref. 138158)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This species is distinguished from its congeners by the following set of characters: dorsal-fin origin slightly before gill openings; predorsal length 40.2-43.7% PAL; head large, its length 43.6-47.5% PAL; brown dorsal and white ventral coloration of thebody and head; melanophore pigments are scattered over ventral part of body; lateral-line pores before dorsal fin 13-15; lateral-line pores before gill openings 16-18; preanal lateral-line pore 47-50; SO 5, IO 9, POM 11, ST 1; predorsal vertebrae 11-13; and preanal vertebrae 46-49. (Ref. 138158).
Body shape (shape guide): eel-like; Cross section: circular.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Kodeeswaran, P. and T.T.A. Kumar, 2025. Facciolella smithi, a new species of deep-water nettastomatid eel (Anguilliformes: Nettastomatidae) from the Arabian Sea. Zootaxa 5653(4):563-571. (Ref. 138158)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00087 (0.00035 - 0.00219), b=2.98 (2.76 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): Moderate vulnerability (45 of 100).
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