Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 2 - 30 m (Ref. 27115), usually 3 - 30 m (Ref. 27115). Tropical; 22°C - 30°C (Ref. 27115); 19°N - 24°S
Western Pacific: Philippines south to Rowley Shoals and the southern Great Barrier Reef and east to Fiji (Ref. 37816). Recently reported from Tonga (Ref. 53797).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.5 cm SL male/unsexed; (Ref. 48637)
soft rays: 11. Characterized by charcoal grey body color with five dark-edged orange to reddish stripes; upper back with a row of white spots; yellow-edged black spot on second dorsal fin; upper caudal fin base with black spot; elongate and filamentous first two dorsal spines in adult; united pelvic fins, frenum absent; rounded caudal fin, often slightly shorter than head length; longitudinal scale series 55-60; ctenoid body scales, becoming cycloid anterior to posterior part of first dorsal fin; head scaleless or only 2-3 small scales on upper opercle; depth of body 4.5 in SL (Ref. 90102).
Inhabits sandy and muddy bottoms of turbid coastal reefs (Ref. 1602) to depths pf 20m (Ref. 48637). Solitary or in small groups (Ref. 90102). Does not appear to use a burrow and seen in areas with coral growth (Ref. 1602).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 25.7 - 28.9, mean 27.8 (based on 574 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00427 - 0.01860), b=3.08 (2.91 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (19 of 100) .