Species: Opisthopterus macrops, Bigeye longfin-herring
deep body; concave nape
large eye
large eye
D origin center C to pectoral base
dark spot after operculum
fins yellow
fins yellow
teeth
lower gill rakers 19-20
A: ~ 60, origin nearer snout tip than C
Opisthopterus macrops (Günther, 1867)
Bigeye longfin-herring
Body elongate, strongly compressed; eye very large; mouth opens obliquely up, lower jaw projecting at front, short (ends under eye); distinct space between 2 bones of top jaw; jaw teeth small; 19-20 lower gill rakers; dorsal fin 11, small, origin midway between tail fin and pectoral base; anal fin long (~60 rays), origin nearer tip of snout than base of tail fin; pelvic fins absent; belly with a sharp keel of ~29 large spiny scales (scutes); ~ 45-60 lateral scales.
Silvery; a dark blotch behind upper corner of operculum; fins yellowish.
Size: 21 cm.
Habitat: marine, coastal.
Depth: 0-10 m?
El Salvador to Ecuador.
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- Salinity
-
- Marine Only
- Marine
- Inshore/Offshore
-
- Inshore
- Inshore Only
- Water Column Position
-
- Surface
- Water column only
- Near Surface
- Habitat
-
- Water column
- FishBase Habitat
-
- Pelagic
- Feeding Group
-
- Carnivore
- Planktivore
- No Data
- Diet
-
- Pelagic fish larvae
- No Data
- Zooplankton
- Pelagic fish eggs
- Bony fishes
- Egg Type
-
- Pelagic
- No data
- Pelagic larva
- Global Endemism
-
- East Pacific endemic
- All species
- Tropical Eastern Pacific (TEP) endemic
- Regional Endemism
-
- All species
- Continental TEP endemic
- Panamic province endemic
- TEP endemic
- Continent only
- Continent
- Residency
-
- Resident
- Climate Zone
-
- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
-
- Least concern
- Listed
- CITES
-
- Not listed
- Length Max
-
- 21
- Depth Range Min
-
- 0
- Depth Range Max
-
- 10
