Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; non-migratory; depth range 4 - 15 m (Ref. 1602). Tropical; 17°N - 24°S, 139°E - 133°W
Pacific Ocean: patchy distribution, from Johnston Atoll to the Society Islands, also reported from the Mariana and Admiralty Islands. Recently reported from Ouvéa Atoll, Loyalty Islands (Ref. 13236).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 4858)
Dorsal spines (total): 13; Dorsal soft rays (total): 15; Anal spines: 3; Anal soft rays: 15. This species is distinguished by the following: lacrymal bone has 2 stout spines; 18 gill rakers; 2 dark blotches, one at the pectoral fin base and the other at the posterior basis of the dorsal fin; absence of dark patch above the pectoral fin (Ref. 53274). Body depth 1.9-2.0 in SL. Scales longitudinal series 44 (Ref. 90102).
Inhabits dead coral and rubble reefs in clear lagoons and exposed seaward reefs (Ref. 1602). Benthopelagic (Ref. 58302). Extremely cryptic; never seen by divers except poison stations. Feeds on algae. Never exported through the aquarium trade (Ref. 48391).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Allen, G.R., 1985. Butterfly and angelfishes of the world. Vol. 2. 3rd edit. in English. Mergus Publishers, Melle, Germany. (Ref. 4858)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 25.8 - 29.4, mean 28.3 °C (based on 728 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03090 (0.01359 - 0.07026), b=2.89 (2.70 - 3.08), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.0 ±0.00 se; based on food items.
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).