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Species: Jordanella pulchra, Progreso Flagfish, Yucatan Flagfish

All Families:   All Genera:   All Species:

dark oblique bar under eye
D 14-17, 1st ray not spine-like
A 8-10
C 12-16
teeth - 3 pointed
no chin pores
pectoral 13-17
slightly enlarged scale behind operculum

Jordanella pulchra (Hubbs, 1936)

Progreso Flagfish, Yucatan Flagfish

Body moderately deep and chubby; head flattened; snout short and blunt;front nostril not tubular; covering of eye not continuous with skin of head; mouth wide, oblique, at front, protrusible; no pores on chin; teeth 3-pointed; dorsal fin short based, 14-17 rays (1st ray not spine-like), at mid-body, its origin before anal fin origin; anal fin with 8-10 branched rays; pectoral fin short, 13-17 rays, low on side; pelvics small, 6-8 rays, on belly well behind pectoral base; tail fin bluntly rounded, 12-16 principal rays; body with large, smooth scales, 22-24 lateral scales; head scaly; slightly enlarged scale just behind upper corner of operculum; lateral line reduced to a series of pits along side of body.

Both sexes – with a dark oblique bar running down & forward under eye. Male: body with a dense pattern of irregular iridescent spots, blotches and dark bars that become more numerous and break up into a reticulated pattern with age; upper back with silver spots; a large black blotch on mid side below dorsal fin origin, which becomes disrupted by spots and reticulations with age; lower body with an orange tint, outer edges of dorsal, anal and pelvic fins orange; vertical fins speckled with dark, more so on the dorsal. Female pale brownish, with 6-7 darker bars that become narrower, more numerous and better defined with age; dorsal fin with a blackish streak along its base; tail fin with a dark bar at base. Juvenile: body with oblique, irregular dark bars that join dark saddles on back; a dark oblique bar from eye as in adult; no ocellus on rear of dorsal fin in juvenile or female.

Reaches 4.5 cm.

Fresh to brackish water.

Depth range: 0-1 m.

Yucatan Peninsula to Belize.

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  • Brackish
  • Freshwater
  • Non Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Submerged vegetation
  • Estuary
  • Freshwater
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Detritivore
  • Omnivore
  • Planktivore
  • Data
  • Zooplankton
  • Detritus
  • Insects
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
Egg Type
  • Benthic
  • Data
  • No pelagic larva
  • No pelagic phase
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Continent only
  • GC endemic
  • All species
  • Resident
Climate Zone
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 4.5
Depth Range Min
  • 0
Depth Range Max
  • 1