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Species: Fundulus jenkinsi, Saltmarsh Topminnow, Saltmarsh Topminnow Killifish

All Families:   All Genera:   All Species:

snout sharply pointed
dark behind eye
D 8-9, origin behind A origin
gill rakers 10
scale edges dark - > cross-hatch
0 chin pores
A 11
scales: 29-32 lateral, 14-16 around tail base

Fundulus jenkinsi (Evermann, 1892)

Saltmarsh Topminnow, Saltmarsh Topminnow Killifish

Body slender elongate, compressed; head flattened above, with straight to slightly convex upper profile, snout sharply pointed, about equal to eye; 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; chin with no pores; jaws with outer row of pointed conical teeth, inner band of simple teeth; gill rakers short, slender 10; no spines in fins; dorsal fin short based, its origin distinctly behind anal fin origin, 8-9 rays; anal fin with 3rd fin ray branched, 11 (9-12) rays; dorsal and anal fins longer in male; pectoral with narrow base, rounded, inserted low on side, 15-16 rays; pelvics inserted well behind pectoral base; tail base depth <13% of SL; tail fin rounded; small smooth scales, 29-32 midlateral rows; 14-16 scales around tail base; sexes similar in shape; lateral line reduced to a series of pits along side of body.

Pale yellow, with minute dark specks along scale edges forming a cross-hatched pattern; both sexes with 2 rows of 15-30 dark, scale-sized spots along flank; a dark blotch on upper operculum.

Reaches 6.5 cm.

Brackish streams and bays.

Depth range: 0-1 m.

The northern Gulf of Mexico.

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  • Brackish
  • Freshwater
  • Non Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Estuary
  • Freshwater
  • Mangrove
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
  • Continent
  • Continent only
  • GC endemic
  • Gulf of Mexico endemic
  • All species
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
IUCN Red List
  • Listed
  • Vulnerable
  • Not listed
Length Max
  • 6.5
Depth Range Min
  • 0
Depth Range Max
  • 1