Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Labridae (Wrasses) > Julidinae
Etymology: Labroides: Combination of the labrid genus Labrus and the Greek suffix -oides meaning ‘resembling’ or ‘to bear likeness to’, presumably referring to its similarity with the genus Labrus (or simply other members of the family Labridae).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 2 - 40 m (Ref. 138889). Tropical
Distribution
Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Indian Ocean: Christmas Island and the Cocos (Keeling) Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.8 cm SL male/unsexed; (Ref. 138889)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 9; Dorsal soft rays (total): 11; Anal spines: 3; Anal soft rays: 10; Vertebrae: 25. This species is distinguished by the following characters: D IX,11; A III,10; pectoral-fin rays 13; upper procurrent caudal-fin rays 6; lower procurrent caudal-fin rays 7-8; principal caudal-fin rays 8 + 7; circumpeduncular scales 18-20; body depth 3.7-4.2 in SL; head length 2.5-3.2 in SL; snout length 3.0-3.3 in HL; orbit diameter 3.4-5.8 in HL; orbit diameter 1.1-1.9 in snout length; caudal-peduncle length 1.9-3.3 in HL; pored lateral-line scales 25-28; scale rows above lateral line 3, below lateral line 9-10; total gill rakers 12-13. Colouration: head and anterior body grey to steely blue; head with a narrow dusky streak on cheek below eye, running from corner of mouth to edge of opercle; body with a median lateral black stripe from snout, passing through orbit to end of caudal fin (this stripe broadening towards posterior); posterior two thirds of body suffused with orange brown (including the median lateral black stripe); upper and lowermost edge of the caudal fin light blue to lilac; lower base of pectoral fin with a black elliptical spot (Ref. 138889).
Body shape (shape guide): elongated; Cross section: compressed.
Occurs in shallow coral reefs and syntopic with Labroides dimidiatus sensu lato and Labroides bicolor; with client fish Gymnothorax breedeni (Ref. 138889).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tea, Y.-K., L. Baraf, Y. Menkara, W.B. Ludt, G.R. Allen, J.-P.A. Hobbs and P.F. Cowman, 2026. Cleaning up the cleaner wrasses: revision of the Labroides phthirophagus and Labroides bicolor species complexes, with rediagnosis of Labroides quadrilineatus and descriptions of two new species (Teleostei: Labridae). Raffles Bulletin of Zoology v. 74: 403-443. (Ref. 138889)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00490 (0.00203 - 0.01181), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
3.7 ±0.6 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |