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Thalassoma trilobatum  (Lacepède, 1801)

Christmas wrasse
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Thalassoma trilobatum   AquaMaps   Data sources: GBIF OBIS
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Image of Thalassoma trilobatum (Christmas wrasse)
Thalassoma trilobatum
Picture by Randall, J.E.

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Labridae (Wrasses) > Corinae
Etymology: Thalassoma: Greek, thalassa = the sea + Greek, soma = body; the colour of the sea (Ref. 45335).

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

Marine; reef-associated; depth range 0 - 10 m (Ref. 1602).   Tropical; 30°N - 28°S

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

Indo-Pacific: East Africa to the Pitcairn, north to the Ryukyu Islands, south to Tonga and Rapa.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref. 4392)

Short description Morphology | Morphometrics

Dorsal spines (total): 8; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 11. This species is distinguished by the following characters: greatest body depth 2.7-3.6 in SL; pectoral fin rays usually 16; lateral line scales 25; total gill rakers on first gill arch 17-24 (modally 20); caudal fin of initial phase slightly rounded to truncate, of terminal males truncate to slightly double emaginate; Body of initial (female) phase greenish grey to pale green with 5-6 dark saddles on back, pair of dark (sometimes diffused) stripes on side, a dark vertical line on most scales of body, and with a diagonal (or C-shaped) pink to dark red below front of eye; while body of terminal male salmon-pink to orange anteriorly, with 2 longitudinal series of vertical green rectangles, every fourth pair of upper series extending as a single green bar across back, the head orange-brown without bands and caudal fin brownish to greenish, shading distally to pink, the posterior third of rays blue (Ref. 9823, 86689, 90102).

Biology     Glossary (e.g. epibenthic)

Found solitary or in groups (Ref. 90102) in shallow exposed reef flats, usually with rock-base and mixed coral and algae (Ref. 48636, 58302). Also occurs in surge-swept reef flats, reef margins, and clear rocky shorelines, but may venture to deeper waters up to 10 m (Ref. 3921). Benthopelagic (Ref. 58302). Feeds on crustaceans (especially crabs), mollusks, and ophiuroids (brittle stars) (Ref. 3921).

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

Oviparous, distinct pairing during breeding (Ref. 205).

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

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

IUCN Red List Status (Ref. 119314)

  Least Concern (LC) ; Date assessed: 07 March 2009

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.9 - 29.3, mean 28.3 (based on 2665 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00491 - 0.02339), b=3.03 (2.86 - 3.20), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.8   ±0.58 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):  Low to moderate vulnerability (35 of 100) .
Price category (Ref. 80766):   Very high.