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Brachysomophis crocodilinus (Bennett, 1833)

Crocodile snake eel
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Brachysomophis crocodilinus   AquaMaps   Data sources: GBIF OBIS
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Image of Brachysomophis crocodilinus (Crocodile snake eel)
Brachysomophis crocodilinus
Picture by Randall, J.E.

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: Brachysomophis: Greek, brachys, eia = short + Greek, soma = body + Greek, ophis = serpent (Ref. 45335)crocodilinus: crocodilinus in reference to its appearance (Ref. 42180).
More on author: Bennett.

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

Marine; reef-associated; depth range 0 - 30 m (Ref. 42180), usually 0 - 2 m (Ref. 42180). Tropical

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

Indo-Pacific: East Africa in Tanzania, Seychelles and Mauritius (Ref. 3972), to the Society Islands (but not the Hawaiian Archipelago), north to Japan, south to Australia (Ref. 33390).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 120 cm TL male/unsexed; (Ref. 9710)

Short description Identification keys | Morphology | Morphometrics

Vertebrae: 116 - 124. Diagnosis: Dorsal fin arising well behind pectoral tips; pectoral fins teardrop-shaped; snout very short; jaws elongate; anterior nostril in a very short tube in upper lip, closely followed by an ethmoidal pore, a barbel, and the posterior nostril which is in outer lip and entirely covered by a flap; labial cirri numerous, unbranched and slender in anterior half of lip of mandible, those posterior and along lower lip branched at tips; flesh above and behind eye laterally elevated as a ridge; dorsal head profile notably incised and medially constricted behind eyes, the flesh forming a narrow transverse ridge behind dorsal margin of eyes; head pores and lateral-line pores apparent; free sensory neuromasts visible as rows of small white spots on nape; teeth conical (Ref. 42180). Lateral-line pores and temporal pores typically in dark spots; smaller dark spots present irregularly on flank between lateral line and dorsal fin of larger specimens (Ref. 42180). Eye small, coloured like the head, and placed towards the front of the long mouth (Ref. 48635).

Biology     Glossary (e.g. epibenthic)

Generally found in shallow lagoon sand, rock and broken coral substrates at depths of 0-2 m (Ref. 42180). Benthic (Ref. 58302), occurs in sandy bottoms from intertidal to over 12 m.; remains buried in sand with only the eyes protruding where it waits to ambush fish (Ref. 9710) and octopuses (Ref. 275). Used in Chinese medicine (Ref. 12166).

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

Main reference Upload your references | References | Coordinator : McCosker, John E. | Collaborators

McCosker, J.E. and J.E. Randall, 2001. Revision of the snake-eel genus Brachysomophis (Anguilliformes: Ophichthidae), with description of two new species and comments on the species of Mystriophis. Indo-Pac. Fish. (33):1-32. (Ref. 42180)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 19 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Distribution
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BRUVS - Videos
Anatomy
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Physiology
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Nutrients
Oxygen consumption
Swimming type
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Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
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References

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 24.7 - 29.3, mean 28.3 °C (based on 2746 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00091 (0.00039 - 0.00215), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.1   ±0.58 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (72 of 100).
Nutrients (Ref. 124155):  Calcium = 27.8 [14.5, 50.8] mg/100g; Iron = 0.436 [0.258, 0.977] mg/100g; Protein = 19 [17, 22] %; Omega3 = 0.0994 [, ] g/100g; Selenium = 42.9 [23.9, 87.3] μg/100g; VitaminA = 46.6 [14.5, 139.1] μg/100g; Zinc = 0.787 [0.562, 1.112] mg/100g (wet weight);