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Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); perplexus: From its perplexing combination of characteristics also found in longibarba and curtatus..

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

Marine; pelagic-oceanic; depth range 0 - 2600 m (Ref. 11333). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: China and Papua New Guinea.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.4 cm SL male/unsexed; (Ref. 11333); 14.7 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 24; Anal soft rays: 35; Vertebrae: 67. A single terminal bulb, its length more than twice its width, with a terminal projection that may be undeveloped or up to 55% of bulb length. Bulb and projection combined 0.8-2.2% SL. Barbel 67-83% SL, except in the smallest specimen. Axis of stem moderately to fairly dark pigmented proximally, becoming lighter or unpigmented distally. External chevron-shaped or roundish striated areas unpigmented, becoming closely spaced distally. Widely spaced spherical inclusions present in distal 1/3 to 1/2 of stem, sparse or absent before bulb. Middorsal paired spots between occiput and dorsal-fin origin 8, sometimes 9 (Ref. 11333).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Kailola, P.J., 1987. The fishes of Papua New Guinea. A revised and annotated checklist. Vol. 1. Myxinidae to Synbranchidae. Research Bulletin No. 41. Department of Fisheries and Marine Resources, Port Moresby, Papua New Guinea. 194 p. (Ref. 6993)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 13 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Anatomy
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 4.4 - 10.7, mean 6.6 °C (based on 590 cells).

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

Bayesian length-weight: a=0.00302 (0.00117 - 0.00783), 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): 4.2 ±0.8 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).

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Eustomias perplexus Gibbs, Clarke & Gomon, 1983