Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Anguilliformes (Eels and morays) >
Ophichthidae (Snake eels) > Ophichthinae
Etymology: Ophichthus: Greek, ophis = serpent + Greek, ichthys = fish (Ref. 45335); nguyenorum: Name 'nguyenorum' in honor of Dr. Phung Huu Nguyen, Huong Khac Nguyen, and Thi Nhat Nguyen for their contributions in Vietnam's marine fish taxonomy.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 10 - 20 m (Ref. 133101). Tropical
Western Central Pacific: Vietnam.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 97.6 cm TL male/unsexed; (Ref. 133101)
Short description
Identification keys | Morphology | Morphometrics
Vertebrae: 190 - 196. This species is distinguished by the following set of characters: snout rather pointed but occipital strongly convex (duck shaped); body with numerous longitudinal wrinkles, weak on posterior abdomen; head 5.4-6.2% TL; preanal length 31.4-33.5% TL; tail 66.5-68.6% TL; snout length 14.6-16.4% HL; one protrusion along upper lip (rarely 2 on one side); dorsal-fin origin slightly behind pectoral-fin tip; SO 1 + 3, POM 5 or 6 + 2; all teeth small and sharp; teeth on maxilla in one row anteriorly but increasing posteriorly; teeth on mandible biserial; dark body, usually including abdomen; dorsal fin darker with dark margin; anal fin initially pale but darkening towards tip; total vertebrae 190-196, MVF 15-62-192 (Ref. 133101).
Body shape (shape guide): eel-like; Cross section: circular.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Vo, Q.V., Y. Hibino, H.-C. Ho, T.T.T. Le and Y.G. Seah, 2025. Two new snake eels (Anguilliformes, Ophichthidae, Ophichthus) from Viet Nam, with redescriptions of O. macrochir (Bleeker) and O. rutidoderma (Bleeker). ZooKeys 1231:311-329. (Ref. 133101)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
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): 4.1 ±0.7 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): High vulnerability (59 of 100).
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