Species: Neoopisthopterus tropicus, Tropical longfin-herring
no pelvics
Neoopisthopterus tropicus (Hildebrand, 1946)
Tropical longfin-herring
Small, elongate, slender, its depth about 3.8-4.0 in SL, compressed; mouth opens at front, oblique; top jaw short, not reaching beyond rear edge of eye; jaw teeth few, very small; top jaw with 2 toothed bones, no gap between them; gill rakers short, thick, few; dorsal fin 13-15, its origin well behind mid-body, behind anal fin origin; no pelvics; anal fin base long (43-48 rays); a sharp keel of ~ 26 scutes along belly.
Greenish brown on back, silvery white below with a silver mid-lateral band; tip of dorsal and top of tail blackish .
Size: grows to 11 cm.
Habitat: forms large schools in bays, estuaries, and in brackish river mouths.
Depth: 0-10 m?
The SE Gulf of California to northern Peru.
High Resolution Map Download
- Salinity
-
- Marine
- Brackish
- Inshore/Offshore
-
- Inshore Only
- Inshore
- Water Column Position
-
- Surface
- Near Surface
- Water column only
- Habitat
-
- Freshwater
- Estuary
- Water column
- FishBase Habitat
-
- Pelagic
- Feeding Group
-
- Data
- Planktivore
- Diet
-
- Zooplankton
- Pelagic fish eggs
- No Data
- Pelagic fish larvae
- Egg Type
-
- No data
- Pelagic
- Pelagic larva
- Global Endemism
-
- East Pacific endemic
- Tropical Eastern Pacific (TEP) endemic
- All species
- Regional Endemism
-
- 3 provinces (Cortez + Mexican + Panamic) endemic
- Continent
- Continental TEP endemic
- Continent only
- TEP endemic
- All species
- Residency
-
- Resident
- Climate Zone
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- Northern Subtropical (Cortez Province + Sinaloan Gap)
- Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
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- Least concern
- Listed
- CITES
-
- Not listed
- Length Max
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- 11
- Depth Range Min
-
- 0
- Depth Range Max
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- 10
