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> Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); robustus: Named for its massive head..
More on authors: Schwarzhans, Møller & Nielsen.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marino associati a barriera corallina; distribuzione batimetrica 0 - 8 m (Ref. 57884). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Central Pacific: Viti Levu Island, Fiji.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.2 cm SL maschio/sesso non determinato; (Ref. 57884)

Short description Chiavi di identificazione | Morfologia | Morfometria

Raggi dorsali molli (totale) : 77; Raggi anali molli: 63; Vertebre: 43. The species is characterized by the following: vertebrae 11+32=43, dorsal fin rays 77, anal fin rays 63; very small eyes (1.8% SL); outer pseudoclasper with short, small ear-lobe extension, opening towards anterior; inner pseudoclasper firmly joined to outer pseudoclasper anteriorly, with supporter, forming a robust thorn, almost as long as outer pseudoclasper; narrow scale patch on cheek, no scales on operculum; the head profile is massive (width 16.6% SL) with blunt snout (Ref. 57884).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 16 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
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Food consumptions
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Ecology
Ecologia

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Life cycle
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Egg(s)
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Dinamica popolazioni larvali

Distribution
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Anatomy
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Physiology
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Genetics
Genetica
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Stamps, coins, misc.

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [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): 3.2 ±0.5 se; based on size and trophs of closest relatives

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

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Diancistrus robustus Schwarzhans, Møller & Nielsen, 2005