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Rhinecanthus rectangulus  (Bloch & Schneider, 1801)

Wedge-tail triggerfish
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Rhinecanthus rectangulus   AquaMaps   Data sources: GBIF OBIS
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Image of Rhinecanthus rectangulus (Wedge-tail triggerfish)
Rhinecanthus rectangulus
Picture by Randall, J.E.

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

Actinopterygii (ray-finned fishes) > Tetraodontiformes (Puffers and filefishes) > Balistidae (Triggerfishes)
Etymology: Rhinecanthus: Greek, rhinos = nose + Greek, akantha = thorn (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 10 - 20 m (Ref. 9770).   Tropical; 30°N - 32°S

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref. 30573)

Short description Morphology | Morphometrics

Dorsal spines (total): 3; Dorsal soft rays (total): 22-25; Anal spines: 0; Anal soft rays: 20 - 22. Body orange-brown above; head and belly white; soft dorsal, anal and pectoral fins pale; caudal fin dusky (Ref. 4420).

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

Indo-Pacific: Red Sea south to East London, South Africa (Ref. 4420) and east through Indonesia to the Marquesan Islands, north to southern Japan, south to Lord Howe Island.

Biology     Glossary (e.g. epibenthic)

Occur in shallow outer reefs subject to surge (Ref. 9770, 48637). Commonly found over barren rock or the spur-and-groove zone where there is a mixture of bare rock, rubble, and coral. Juveniles on algae reef (Ref. 48637). Benthopelagic (Ref. 58302). Feed on algae, detritus, mollusks, crustaceans, worms, echinoderms, fishes, sponges, foraminiferans, and eggs. Territorial. Oviparous (Ref. 205). Also taken by drive-in nets (Ref. 9770).

Main reference Upload your references | References | Coordinator : Matsuura, Keiichi | Collaborators

Matsuura, K., 2001. Balistidae. Triggerfishes. p. 3911-3928. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome.

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

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FAO areas
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Ecology
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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=-1.62000 (nan - nan), b=3.00 (2.84 - 3.16), based on LWR estimates for species & Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.4 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (31 of 100) .
Price category (Ref. 80766):   Medium.