Shorefishes of the Greater Caribbean online information system

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Species: Rhinosardinia amazonica, Amazon spinejaw sprat, Shortband herring

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top jaw - no central notch
top jaw - spine points back
rear edge gill opening - no fleshy lobes
full row belly scutes

Rhinosardinia amazonica (Steindachner, 1879)

Amazon spinejaw sprat, Shortband herring

Elongate, compressed; mouth oblique, lower jaw projecting; top jaw short, ends at level of front edge of pupil; front of top jaws with no central notch; rear edge of front of top jaw bone at level of center of eye with a sharp back-directed spine; rear edge of gill opening evenly rounded, without fleshy lobes; anal fin relatively short based, 15-18 rays; pelvic fins on the abdomen below the dorsal fin; a forked tail fin; lower body profile with series of keeled sharp scutes (hard spiny scales) from under throat to anus; each scale with a pair of  distinct parallel skin lines; lateral scales 39-41.

Pale yellowish white; belly silver; tail fin lobes yellow, with thin black edges; a silver stripe along mid-side in some fish.

Reaches 10.3 cm.

Freshwater, but into brackish river mouths.

Depth: 3-50 m.

Venezuela to northern Brazil.


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Salinity
  • Brackish
  • Freshwater
  • Non Marine
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Surface
  • Water column only
  • Near Surface
Habitat
  • Estuary
  • Water column
  • Freshwater
FishBase Habitat
  • Pelagic
Feeding Group
  • Planktivore
  • Data
Diet
  • Zooplankton
Egg Type
  • Pelagic
  • Pelagic larva
Global Endemism
  • West Atlantic Endemic
  • Greater Caribbean endemic
Regional Endemism
  • Extends North of GC
  • GC endemic
  • Continent
  • Island (s)
  • Continent + Island (s)
Residency
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Not evaluated / Listed
CITES
  • Not listed
Length Max
  • 10.3
Depth Range Min
  • 3
Depth Range Max
  • 50