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Rexea antefurcata  Parin, 1989

Long-finned escolar
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Image of Rexea antefurcata (Long-finned escolar)
Rexea antefurcata
Picture by FAO

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Gempylidae (Snake mackerels)
Etymology: Rexea: Latin, rex, rego = king.

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 230 - 920 m (Ref. 86942).   Deep-water; 13°S - 40°S, 143°E - 83°W (Ref. 6181)

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

Southeast Pacific: seamounts of Nazca and Sala y Gomez Ridges and at Easter Island. Southwest Pacific: Tasman Sea (from 23° to 37°S along east coast of Australia and on seamounts), and from southern Fiji.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 72.5 cm SL male/unsexed; (Ref. 6181)

Short description Morphology | Morphometrics

Dorsal spines (total): 19 - 20; Dorsal soft rays (total): 15-17; Anal spines: 2; Anal soft rays: 12 - 14; Vertebrae: 34. Most of the body is naked except for the wedge-shaped stripe of squamation extending forward from the caudal peduncle along the horizontal part of the lower lateral line and a few scales along the posterior part of the upper lateral line. Pyloric caeca 8 to 10. Pelvic fins entirely absent at over 25 cm SL. Body color is grayish or brownish with metallic tint; fins blackish or gray.

Biology     Glossary (e.g. epibenthic)

Probably schooling, migrates to midwater at night. Feeds on fishes (myctophids, Maurolicus, eels, macrourids, carangids, emmelichthyids, etc.), prawn and squid; large prey items are swallowed in parts (Ref. 6202). Matures at about 25 cm standard length. No special fishery but appears as a bycatch of deep-water prawn trawl fishery in New South Wales, Australia.

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

Main reference Upload your references | References | Coordinator : Parin, Nikolay V. | Collaborators

Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: subsistence fisheries
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00190 - 0.00797), b=3.11 (2.92 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.4   ±0.74 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (52 of 100) .
Price category (Ref. 80766):   Unknown.