Shorefishes of the Eastern Pacific online information system

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Species: Priacanthus alalaua, Hawaiian bigeye, the Alalaua

All Families:   All Genera:   All Species:

body & fins red
pelvic: membranes black
head profiles asymmetric
preopercle: no spine, rear edge scaly

Priacanthus alalaua Jordan & Evermann, 1903

Hawaiian bigeye, Alalaua

Body moderately elongate oval, strongly compressed; head profiles asymmetrical, with tip of lower jaw above body midline; no large flat spine at angle of preopercle, its rear edge scaly; rakers on first gill arch 19-23; dorsal rays X, 12-14 (usually 13); anal rays III, 13-14 (usually 14); pectoral rays 17-19 (usually 18); pelvic fins relatively short, usually less than head length, broadly fused to belly; tail with W-shaped rear border; lateral-line scales 65-79; scale rows between lateral line and dorsal fin origin 10-13.

Overall crimson, including fins and iris of eye; membranes of pelvic fin black; no dark spotting on fins.

Size: to 32 cm.

Inhabits rocky bottoms.

Depth: 10-275 m.

Hawaiian Islands and tropical eastern Pacific; in the latter region it is the Revillagigedos Islands and Alijos rocks west of southern Baja.

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  • Marine Only
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Mid Water
  • Bottom
  • Bottom + water column
  • Near Bottom
  • Reef only
  • Reef associated (reef + edges-water column & soft bottom)
  • Rocks
  • Water column
  • Reef (rock/coral/oyster)
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Carnivore
  • Planktivore
  • Pelagic crustacea
  • No Data
  • Zooplankton
Egg Type
  • No data
  • Pelagic larva
  • Pelagic
Global Endemism
  • All species
  • "Transpacific" (East + Central &/or West Pacific)
  • TEP non-endemic
  • Central + East Pacific (but not West)
  • Pacific only (East + Central &/or West)
Regional Endemism
  • All species
  • Island (s)
  • Island (s) only
  • Tropical Eastern Pacific (TEP) non-endemic
  • Eastern Pacific non-endemic
  • Resident
Climate Zone
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 32
Depth Range Min
  • 10
Depth Range Max
  • 275