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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 Ökologie

seewasser riff-verbunden. Tropical

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Eastern Central Pacific: American Samoa.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 5.4 cm SL Männchen/unbestimmt; (Ref. 81230); 5.9 cm SL (female)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt) : 73 - 80; Afterflossenweichstrahlen: 57 - 64; Wirbelzahl: 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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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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)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

nicht bedroht (LC) ; Date assessed: 15 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Alionematichthys samoaensis Møller & Schwarzhans, 2008