Shorefishes of the Eastern Pacific online information system

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Species: Chromis alta, Oval chromis, Oval damselfish, Silverstripe chromis

All Families:   All Genera:   All Species:

body deep
dark grey to black
juvenile: blue/black + white stripe along D base

Chromis alta Greenfield & Woods, 1980

Silverstripe Chromis, Oval Chromis, Oval Damselfish

Body compressed, deep, oval, greatest body depth 1.8-2.2 in SL; 1 pair of nostrils; edge of bone under eye smooth; preopercle smooth or with occasional fine serrations; mouth small, protrusible, opens at front; teeth in 2 rows, outer conical, larger; gill rakers 27-33; a single continuous dorsal fin, XIII, 12-14; anal rays II,12-13; pectoral rays 19-21; 2-3 short projecting spines at upper and lower base of tail fin; caudal fin forked; scales large and rough; 16-19 lateral line scales; body scaled, most of head scaled, basal parts of the median fins scaled; lateral line incomplete, ends under end of dorsal fin base.

Light brown with darker scale margins; juveniles blue with neon-blue stripe above and below eye, and broad whitish band along base of dorsal fin that joins diffuse pale bar across upper tail base.

Maximum size to 17.3 cm.

Inhabits rocky reefs.

Depth: usually in about 30-200 m depth, but shallow in the Galapagos (5-45 m).

Southern California to the lower Gulf of California, all the offshore islands, and Lobos de Afuera islands off Peru.

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  • Marine
  • Marine Only
  • Inshore Only
  • Inshore
Water Column Position
  • Near Bottom
  • Bottom
  • Bottom + water column
  • Reef associated (reef + edges-water column & soft bottom)
  • Reef (rock/coral/oyster)
  • Rocks
  • Water column
  • Reef only
  • Corals
FishBase Habitat
  • Reef Associated
Feeding Group
  • No Data
  • Planktivore
  • Pelagic crustacea
  • Zooplankton
  • Pelagic fish eggs
  • Data
Egg Type
  • Pelagic larva
  • Benthic
  • No data
Global Endemism
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
  • All species
Regional Endemism
  • Island (s)
  • Continent
  • TEP endemic
  • All species
  • Continent + Island (s)
  • Resident
Climate Zone
  • South Temperate (Peruvian Province )
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • North Temperate (Californian Province &/or Northern Gulf of California)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Listed
  • Least concern
  • Not listed
Length Max
  • 17.3
Depth Range Min
  • 1
Depth Range Max
  • 200