Overview

Comprehensive Description

Biology

Adults inhabit sand and rubble bottoms of steep outer slopes. Numerous individuals in loose aggregations observed in gullies that dissected the steep slope. Invariably sighted to stay close to the bottom, quickly retreating into holes among the rubble when approached closely, The largest individual that was observed was estimated to be about 35 cm SL (Ref. 53986). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
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Distribution

Phoenix Islands, Central Pacific.
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Eastern Central Pacific: Phoenix Islands (Kiribati).
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Physical Description

Morphology

Dorsal spines (total): 14; Dorsal soft rays (total): 12; Analspines: 2; Analsoft rays: 13
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Size

Max. size

2.8 cm SL (male/unsexed; (Ref. 53986))
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Diagnostic Description

Diagnosis: Whitish overall without distinct marks. D XIV,12; A II,13; P 15-16. Gill rakers on first branchial arch 5 or 6 + 19 or 20, total rakers 19 or 20. Tubed lateral line scales 15 or 16 (Ref. 53986).
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Ecology

Habitat

Environment

reef-associated; marine; depth range 40 - 55 m (Ref. 53986)
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Depth range based on 1 specimen in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 43.5 - 43.5
  Temperature range (°C): 28.986 - 28.986
  Nitrate (umol/L): 1.536 - 1.536
  Salinity (PPS): 35.455 - 35.455
  Oxygen (ml/l): 4.528 - 4.528
  Phosphate (umol/l): 0.519 - 0.519
  Silicate (umol/l): 1.450 - 1.450
 
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Life History and Behavior

Life Cycle

Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
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Conservation

Threats

Not Evaluated
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