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Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); australensis: Named for its place of capture, Australia.

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

Marine; bathypelagic; depth range 0 - 500 m (Ref. 11333). Temperate

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Southwest Pacific: Endemic to New South Wales, Australia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.7 cm SL male/unsexed; (Ref. 11333)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 23; Anal soft rays: 36; Vertebrae: 67. Two terminal bulbs separated by a distance equal to the distal bulb length. Barbel 55% SL. Terminal filament longer than 9.4% SL with the tip broken. Distal bulb large, 1.6 times length of proximal bulb. Axis of stem pigmented, dark proximally, light distally. External chevron-shaped or roundish striated area on stem well pigmented. Middorsal paired spots between occiput and dorsal-fin origin 8 (Ref. 11333).

Mesopelagic species (Ref. 7300, 75154).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 19 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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Estimates based on models

Preferred temperature (Ref. 123201): 13.7 - 21.3, mean 18.5 °C (based on 6 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00302 (0.00116 - 0.00786), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±0.7 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

Eustomias australensis Gibbs, Clarke & Gomon, 1983