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Choerodon cypselurus Gomon, 2017

Swallowtail tuskfish
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Choerodon cypselurus
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drawing shows typical fish in this Family.

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Labridae (Wrasses) > Bodianinae
Etymology: Choerodon: Greek, choiros = a pig + Greek, odous = teeth (Ref. 45335);  cypselurus: Name from the Greek 'kypselos' for swallow and 'oura' for tail, referring to the characteristic swallowtail-like caudal fin of this species, differs from those in other members of the C. azurio clade within this genus.

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

Marine; demersal.   Tropical

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

Western Central Indian Ocean: Seychelles, Saya de Malha Bank.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 23.4 cm SL male/unsexed; (Ref. 116605)

Short description Morphology | Morphometrics

Dorsal spines (total): 12; Dorsal soft rays (total): 8; Anal spines: 3; Anal soft rays: 10; Vertebrae: 27. Diagnosis. D XII,8; A III,10; pectoral fin rays ii,14 (rarely 15), dorsalmost ray moderate length 30.7-30.9% pectoral fin length, ventralmost rays shorter than those above, posterior edge of fin obliquely straight, dorsoposterior corner bluntly pointed, posteroventral corner angular; deep body 39.8-40.7% SL, head depth 29.2-31.2% SL, caudal peduncle depth 12.2-13.0% SL; blunt head, dorsal profile of snout moderately steep, snout length 12.2-15.8% SL; predorsal scales approximately 5 and reaching forward on dorsal midline to or just in advance of posterior edge of preopercle; cheek is partially covered by small, mostly embedded scales in about 8 vertical rows, the posteriormost with about 10 scales to upper extent of free preopercular edge, reaching forward almost to corner of upper lip crease, with broad naked margin posteriorly and ventrally on preopercle; subopercle has a row of about 10 large embedded scales adjacent ventral edge of preopercle extending forward to just short of below anterior extent of free ventral preopercular edge; each lateral line scale has an unbranched laterosensory canal tube; scales above the lateral line about 2½; cephalic sensory canal pores are moderately numerous confined to lines or short branches associated with major canals; a second pair of canines in lower jaw is directed dorsolaterally and slightly posteriorly; dorsal and anal fins with very low basal sheath comprising 1-3 progressively smaller accessory scales at the deepest; posterior lobe of dorsal and anal fins almost reaching the hypural crease; caudal fin double emarginate, the upper and lower lobes distinctly but not greatly produced, posterior margin of fin concave, smoothly curved; pelvic fin reaching anus, length 21.4-22.4% SL; colour uniformly pale in preservative (Ref. 116605).

Biology     Glossary (e.g. epibenthic)

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

Main reference Upload your references | References | Coordinator : Westneat, Mark | Collaborators

Gomon, M.F., 2017. A review of the tuskfishes, genus Choerodon (Labridae, Perciformes), with descriptions of three new species. Memoirs of Museum Victoria 76:1-111. (Ref. 116605)

IUCN Red List Status (Ref. 120744)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO(Publication : search) | FishSource |

More information

Countries
FAO areas
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Ecology
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Eggs
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Length-length
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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 | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | 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 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00572 - 0.02903), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.4   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate vulnerability (38 of 100) .