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Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Alionematichthys: Name from Latin alius meaning the other or different, and nematichthys, the stem of the genus name Dinematichthys, to which this genus is most similar; samoaensis: Named for its type locality, American Samoa; an adjective.
More on authors: Møller & Schwarzhans.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien rifbewoner. Tropical
Eastern Central Pacific: American Samoa.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 5.4 cm SL mannelijk / geslacht onbekend; (Ref. 81230); 5.9 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 73 - 80; Anale zachte stralen: 57 - 64; Wervels: 40 - 43. This species is distinguished by the following characters: D 73-80; A 57-64; moderately large eyes (2.2-2.8%SL); slender body; many cirri on snout; scales on cheeks, none above the opercular spine; with upper preopercular pore; funnel-shaped posterior nostril; broad-based outer pseudoclasper, not extending beyond the hood when in resting position, with thick distal knob on the inner face, while the inner one about half size of outer pseudoclasper, anterior thorn slightly bent, posterior lobe broader than the anterior one; vertebrae 11-12 + 29-30 = 40-43 (Ref. 81230).
A gravid female, 4.6 cm SL (CAS 81486) with ca. 100 embryos, 0.46 cm TL in length; each embryo with 3 short pigmented rows on the posterior part of the body (Ref. 81230).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Møller, P.R. and W. Schwarzhans, 2008. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-west Pacific, Part IV. Dinematichthys and two new genera with descriptions of nine new species. The Beagle 24:87-146. (Ref. 81230)
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 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
