Pseudorhombus arsius  (Hamilton, 1822)

Largetooth flounder
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Pseudorhombus arsius   AquaMaps   Data sources: GBIF OBIS
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Image of Pseudorhombus arsius (Largetooth flounder)
Pseudorhombus arsius
Picture by Schulz, S.

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

Actinopterygii (ray-finned fishes) > Pleuronectiformes (Flatfishes) > Paralichthyidae (Large-tooth flounders)
Etymology: Pseudorhombus: Greek, pseudes = false + Greek, rhombos = paralelogram (Ref. 45335).

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

Marine; brackish; demersal; oceanodromous (Ref. 51243); depth range 0 - 200 m (Ref. 30573).   Tropical

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

Indo-West Pacific: Persian Gulf and east coast of Africa (south to Algoa Bay and perhaps to Knysna, South Africa) to Fiji, north to southern Japan, south to the northern coast of Australia.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 16 - 17 cm
Max length : 45.0 cm TL male/unsexed; (Ref. 6804); common length : 30.0 cm SL male/unsexed; (Ref. 9774)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 71-84; Anal spines: 0; Anal soft rays: 53 - 62; Vertebrae: 36. Some pairs of moderately large canines in anterior part of both jaws, 6 to 13 lateral teeth in lower jaw, stronger and more widely spaced than those of upper jaw. Gill rakers pointed, longer than broad. Soft ray count of pectoral fin refers to that on ocular side (Ref 9774).

Biology     Glossary (e.g. epibenthic)

Found in shallow waters and estuaries, on mud and sand bottoms, to depths of 200 m (Ref. 30573). Juveniles common in brackish water (Ref. 9774). Feeds on benthic animals (Ref. 5213). Mainly sold fresh (Ref. 9774).

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

Distinct pairing (Ref. 205).

Main reference Upload your references | References | Coordinator : Amaoka, Kunio | Collaborators

Desoutter, M., 1986. Bothidae. p. 428-429. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 6804)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; gamefish: yes
FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | 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 | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 21.4 - 28.5, mean 27 (based on 1365 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00561 - 0.00778), b=3.13 (3.08 - 3.18), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  4.2   ±0.7 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.16; tmax=7).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100) .
Price category (Ref. 80766):   Very high.