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Species: Eucinostomus havana, Bigeye Mojarra

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slender (body depth 30-37% SL)
spiny D front broadly black
back 6 saddles, joining 6 flank blotches
pectoral completely scaled
scaleless pit before eyes not closed/restricted at front by scales

Eucinostomus havana (Nichols, 1912)

Bigeye Mojarra

Body oval, fusiform, compressed, depth 30.3-37% of SL; eye large; the lower profile of the head distinctively concave; the mouth is highly extensible, pointing downward when protruded; jaws appear toothless but have tiny, brush-like teeth; lower border of preopercle smooth; bone under front of eye with smooth border; margin of bone under eye and of preopercle smooth; 7-8 lower gill rakers; dorsal fin IX, 10, 2nd spine less than or equal to distance between tip of snout and rear of eye, last spine short (5.8-7.1% of SL); pectoral not reaching to anal fin origin; anal rays III, 8, spines weak, 2nd spine short, < height of tail base; tail fin deeply forked; scales large, conspicuous and finely rough, covering most of head and body; dorsal and anal fins fold into a high scaly sheath along their bases; pectoral fin completely scaled in adults, bases scaled in juveniles; scales extend before front of eye on top of snout around scaleless groove that is neither constricted on each side at front by scales, nor crossed by a row scales at front; lateral line scales 46-48.

Silvery; body with 6 dark blotches along mid-side that join with 6 bars on upper back; a broad black area on outer front part of spiny dorsal.

Grows to 18 cm.

Primarily on vegetated bottoms mixed with sand; also mud bottoms of mangroves; open sandy beaches; not in estuaries or freshwater

Depth: 0-10 m.

Bermuda to NE Brazil.

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  • Brackish
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Submerged vegetation
  • Estuary
  • Mangrove
  • Mud
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
  • Mobile benthic worms
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
Regional Endemism
  • Also in Brazil
  • Continent
  • Continent + Island (s)
  • Extends South of GC
  • GC non-endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 18
Depth Range Min
  • 0
Depth Range Max
  • 10