Shorefishes of the Greater Caribbean online information system

Español  Contact

Species: Fundulus saguanus, Cuban Gulf Killifish

All Families:   All Genera:   All Species:

many pale spots + narrow pale bars
male - fins dark + pale spots
D 10-15, origin over/before A origin
10 chin pores
gill rakers 7-9
lateral scales 32-33

Fundulus saguanus Rivas, 1948

Cuban Gulf Killifish

Body slender, compressed; head flattened above, with straight to slightly concave upper profile; cover of eye not continuous with head skin; front nostril not tubular; mouth small, oblique, opens at front, protrusible, top jaw twisted, lower jaw projecting; 10 pores under chin; jaws with outer row of pointed conical teeth, inner band of simple teeth; gill rakers 8 (7-9); no spines in fins; dorsal fin short based, its origin over or before anal fin origin, 10-15 rays; anal fin with 3rd fin ray branched, 9-10 rays; pectoral with narrow base, rounded, inserted low on side, 17 (16-18) rays; pelvics inserted well behind pectoral base; tail base depth 71-91% of its length; tail fin bluntly rounded; small smooth scales, midlateral rows 32-33; lateral line reduced to a series of pits along side of body.

Both sexes brownish above, paler below; body with many small pale spots, narrow pale bars on flanks. Male with dorsal, anal and tail fins dark, with small pale spots, yellow outer margins.

Reaches 8 cm.

Fresh to brackish water.

Depth range: 0-1 m.


Sometimes regarded as a subspecies of Fundulus grandis.

High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
  • Brackish
  • Freshwater
  • Non Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Estuary
  • Freshwater
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Omnivore
  • Data
  • Benthic microalgae
  • Insects
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
Egg Type
  • Benthic
  • Data
  • No pelagic larva
  • No pelagic phase
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Antilles endemic
  • GC endemic
  • Island (s)
  • Island (s) only
  • All species
  • Resident
Climate Zone
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 8
Depth Range Min
  • 0
Depth Range Max
  • 1