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Species: Synagrops trispinosus, Three-spine bass

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body depth 21-27% SL
serrated fin spines: pelvic only
D VIII + I, 10, 2 separate parts
small size
gill rakers 17-20
preopercle wealy serrated + 2 keels
A III, 8-9
LL 46-51

Synagrops trispinosus Mochizuki & Sano, 1984

Three-spine bass

Body elongate, tapering, body depth 21-27% of SL, distinctly < head length; snout very short; eye huge; broad and flat between eyes; mouth large, bone of top jaw expanded at rear & largely exposed when mouth is closed, ends ~under mid-eye; top jaws with 1 pair of canines at front, then bands of simple teeth, lower jaw with 1-2 pairs of canines at front, then simple teeth, also with canines at sides; preopercle with weak serrations, 2 small keels at lower rear edge; rear of opercle with 1-2 flat points; gill membranes separate, free from underside of head; gill rakers 17-20; dorsal fin VIII + I, 10, a distinct gap between the 2 sections; anal fin III, 8-9 rays; front edge of pelvic spines serrated, other fin spines smooth; tail fin forked; pectorals longer than pelvics; scales large, smooth, easily shed; scales on cheeks, operculum with or without scales; lateral line continuous, with 46-51 tubed scales.

Preserved fish: pale yellow-brown; a dark stripe along side immediately below lateral line, which has a row of black dots along its top and bottom edges; a silvery brown blotch on operculum.

Reaches 13.7 cm.

Near and above the bottom over deep water reefs.

Depth range: 137-387 m.

Gulf of Mexico to Suriname.


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Salinity
  • Marine
  • Marine Only
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Near Bottom
  • Mid Water
  • Bottom + water column
Habitat
  • Reef associated (reef + edges-water column & soft bottom)
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Reef (rock/coral/oyster)
  • Reef and soft bottom
  • Rocks
  • Water column
FishBase Habitat
  • Bathydemersal
Feeding Group
  • Carnivore
  • Planktivore
  • No Data
Diet
  • Zooplankton
  • Bony fishes
  • No Data
  • Octopus/squid/cuttlefish
Egg Type
  • Pelagic larva
  • No data
  • Pelagic
Global Endemism
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Extends South of GC
  • Continent + Island (s)
  • GC non-endemic
  • Island (s)
Residency
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Listed
  • Least concern
CITES
  • Not listed
Length Max
  • 13.7
Depth Range Min
  • 137
Depth Range Max
  • 387