Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Anguilliformes (Eels and morays) >
Muraenidae (Moray eels) > Uropterygiinae
Etymology: Uropterygius: Greek, oura = tail + Greek pterygion = little wing. Fin (Ref. 45335); hades: Named after Hades, the ancient Greek god of the underworld, referring to its habitation in turbid estuarine waters, high sensitivity to light, and its uniformly dark coloration, reminiscent of the underworld god; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; freshwater; brackish; benthopelagic; depth range 2 - 10 m (Ref. 132453). Tropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Indo-Pacific Ocean: Japan (Ryukyu Arch.), Taiwan, the Philippines, Indonesia (southern Java) to Fiji.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 34.9 cm TL male/unsexed; (Ref. 132453)
Short description
Identification keys | Morphology | Morphometrics
Vertebrae: 117 - 122. This small, slender moray eel, possible maximum TL < 35.0 cm, female mature at 17.1 mm TL is distinguished by the following characters: anus at mid-length of body; eyes small and anteriorly placed; snout pointed; upper jaw slightly longer than lower jaw; teeth sharply pointed with smooth edges and recurved tips; intermaxillary teeth in 5 rows; maxillary and dentary teeth biserial, the inner rows extending to about posterior end of jaws; vomerine teeth in single row; branchial pore absent; total vertebrae 117-122. Colouration: body uniformly dark brown; head pores, oral cavity, and inner skin of posterior nostril and gill opening whitish; iris reddish-brown (Ref. 132453).
Cross section: oval.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Huang, W.-C., R.A. Balisco, F.C. Evacitas and T.-Y. Liao, 2024. Description of a new uniformly brown estuarine moray eel (Anguilliformes, Muraenidae) from the Central Indo-Pacific Ocean. ZooKeys 1220:15-34. (Ref. 132453)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).
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