Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Labridae
(Wrasses) > Xyrichtyinae
Etymology: Iniistius: Latin, in = in + Greek, istion = sail.
Environment / Climate / Range
Marine; reef-associated; depth range 1 - 100 m (Ref. 1602), usually 20 - ? m (Ref. 9710). Tropical; 24°C - 28°C (Ref. 27115); 30°N - 30°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 41.0 cm TL male/unsexed; (Ref. 9710)
soft rays: 12 - 13. Identified by the dark vertical bar below the eye. Usually with 5 dark bars when adult and belly of female turns red. Juveniles with black anal fin and two large ocelli, thinly edged with white, in dorsal fin (Ref. 48636). First two dorsal spines form a separate fin. Juveniles this fin forms a long, bannerlike filament but shortens with age (Ref. 37816).
Indo-Pacific: Red Sea and East Africa to the Society Islands, north to southern Japan and Hawaii, south to the Lord Howe Island. Eastern Pacific: Gulf of California to Panama and the Galapagos Islands (Ref. 5227).
Usually solitary in lagoon and seaward reef areas with fine to loose, coarse sand bottoms (Ref. 1602). Juveniles sometimes in shallow estuaries (Ref. 48636). Adults rare in less than 20 m (Ref. 9710). Benthic and benthopelagic (Ref. 58302). Dives into sand to sleep safely at night or to hide when alarmed (Ref. 9311, 90102). Feed on hard-shelled invertebrates, including mollusks and crustaceans (Ref. 9311). Juveniles mimic drifting dead leaves by holding the elongate detached front part of dorsal fin forward over head. Good to eat, flesh very white (Ref. 7364). Minimum depth reported from Ref. 27115.
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.
IUCN Red List Status (Ref. 90363)
Fisheries: commercial; gamefish: yes; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01120 (0.00513 - 0.02445), b=3.04 (2.87 - 3.21), based on all LWR estimates for this BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.46 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
): Moderate vulnerability (41 of 100) .