Overview

Comprehensive Description

Biology

Adults inhabit inshore and offshore coral reefs. They are found in aggregations above corals (Ref. 9710). Benthopelagic (Ref. 58302). 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

Eastern Central Pacific: confined to the Hawaiian Islands.
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Physical Description

Morphology

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

Maximum size: 60 mm SL
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Max. size

6.0 cm SL (male/unsexed; (Ref. 7247))
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Diagnostic Description

Body short, almost round. Color is brown with a black spot on the pectoral fin base. The caudal fin, caudal peduncle and the adjacent portion of the dorsal and anal fins white.
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Type Information

Paratype for Chromis hanui Randall & Swerdloff
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1965
Locality: Keahuolu Point, north of Kailua, Hawaii Island, Hawaii, United States, Hawaiian Islands, Pacific
Depth (m): 8 to 12
Vessel: Te Vega
  • Paratype: Randall, J. E. & Swerdloff, S. N. 1973. Pacific Science. 27 (4): 338.
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Paratype for Chromis hanui Randall & Swerdloff
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Randall, Swerdloff & E. Chave
Year Collected: 1969
Locality: Oahu, Hawaiian Islands; Off Pokai Bay, Oahu, Hawaii, United States, Hawaiian Islands, Pacific
Depth (m): 21 to 27
  • Paratype: Randall, J. E. & Swerdloff, S. N. 1973. Pacific Science. 27 (4): 338.
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Ecology

Habitat

Depth: 6 - 50m.
From 6 to 50 meters.

Habitat: reef-associated. Inhabits inshore and offshore coral reefs. Found in aggregations above corals (Ref. 9710).
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Environment

reef-associated; non-migratory; marine; depth range 6 - 50 m (Ref. 7247)
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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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Relevance to Humans and Ecosystems

Benefits

Importance

aquarium: commercial
  • Miyasaka, A. 1993 A database on scientific and common names of fishes exported from Hawaii. The information was derived from the above mentioned database. A printout of the names is also available from the State of Hawaii, Department of Land and Natural Resources, 1151 Punchbowl Street, Honolulu, Hawaii. (Ref. 5358)   http://www.fishbase.org/references/FBRefSummary.php?id=5358&speccode=4306 External link.
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