Environment / Climate / Range
Marine; reef-associated; depth range 1 - 30 m (Ref. 86942). Tropical, preferred ?; 10°N - 23°S
Western Pacific: Vietnam, Indonesia (Moluccas), east and northward to Japan (Ryukyu Islands); east through Micronesia (Palau, Guam, Federated States of Micronesia [Yap], Kiribati [Gilbert Islands]); including New Caledonia, Samoa, and French Polynesia; south through Melanesia to Australia (Great Barrier Reef).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL male/unsexed; (Ref. 48637)
soft rays: 6 - 7. This species is distinguished by the following characters: cephalic sensory-canal pore system lacks the IT pore (pattern 2); unbranched pectoral-fin rays; dorsal/anal-fin formula is 8/7; fifth pelvic-fin ray 40% of fourth ray; abdomen without the black peritoneum clearly visible externally; upper portion of pectoral-fin base with a dark spot when dead, and which is lacking or less visible in life; when alive. there is a distinctive red line running from the tip of the lower jaw back under the eye across the cheek (Ref. 107299).
Inhabits rubble of lagoon reefs (Ref. 37816). Also occurs in various reef habitats to about 15 meters depth (Ref. 48637). Occurs in small groups (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00270 - 0.01286), b=3.10 (2.92 - 3.28), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±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 (10 of 100) .