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Bembrops heterurus (MirandaRibeiro, 1903)

Squaretail duckbill
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Native range | All suitable habitat | Point map | Year 2050
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Bembrops heterurus   AquaMaps   Data sources: GBIF OBIS
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Image of Bembrops heterurus (Squaretail duckbill)
Bembrops heterurus
Picture by Carvalho Filho, A.


Chinese Taipei (Taiwan) country information

Common names: [No common name]
Occurrence: questionable
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Outside of distributional range. Occurrence in Taiwan needs confirmation.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Shao, K.-T., 1997
National Database: The Fish Database of Taiwan

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Bembropoidei (Duckbill flatheads) > Bembropidae (Duckbill flatheads)
Etymology: Bembrops: Greek, bembras, -ados = a kind of anchovy m+ Greek, ops = appearance (Ref. 45335);  heterurus: Specific name probably from the Greek 'heteros' meaning different and 'oura' meaning tail..

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

Marine; demersal; depth range 50 - 400 m (Ref. 6948), usually 80 - 200 m (Ref. 47377).   Deep-water; 12°N -

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

Western Atlantic: off Rio de Janeiro, Brazil to Uruguay. Eastern Atlantic: Mauritania to the extreme northern waters of Namibia (Ref. 6948, 27121). The eastern Atlantic form referred to as Bembrops heterurus is unlikely to be conspecific with the Brazilian form, thus further taxonomic study is needed to clarify this situation (Ref. 6948).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm TL male/unsexed; (Ref. 6948); common length : 20.0 cm TL male/unsexed; (Ref. 2683)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 6; Dorsal soft rays (total): 14 - 15; Anal soft rays: 16 - 18. Color in alcohol light yellowish to yellowish brown dorsally, light yellowish brown to creamy brown ventrally. Upper lobe of caudal fin elongated at an acute angle. Snout relatively short, 1.0-1.4x eye diameter. Scales on lateral and dorsal surfaces of snout including area in front of eye. Upper jaw extending behind anterior margin of eye but not reaching its mid-line. Maxillary tentacle short. Lateral line descending gradually along dorsal edge of pectoral fin, separated from origin of first dorsal fin by 4 or 5 rows of scales, from origin of anal fin by 6 or 7, and from insertion of anal fin by 3-5. Pectoral fin moderately rounded. Lower lobe truncate or rounded (Ref 13203).

Biology     Glossary (e.g. epibenthic)

Found on soft bottoms of the continental shelf and feeds on crustaceans and fishes (Ref. 3656).

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

Main reference Upload your references | References | Coordinator | Collaborators

Das, M.K. and J.S. Nelson, 1996. Revision of the percophid genus Bembrops (Actinopterygii: Perciformes). Bull. Mar. Sci. 59(1):9-44. (Ref. 13203)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 13 August 2014

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial
FAO(Publication : search) | FishSource |

More information

Trophic ecology
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Internet sources

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

Estimates based on models

Preferred temperature (Ref. 115969): 13.9 - 24.3, mean 16.8 (based on 91 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00244 - 0.00818), b=3.08 (2.92 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.2 se; based on diet studies.
Fishing Vulnerability (Ref. 59153):  Low vulnerability (18 of 100).
Price category (Ref. 80766):   Unknown.