Species: Fundulus pulvereus, Bayou killifish

female: many dark spots, D dark spot

gill rakers 7
Fundulus pulvereus (Evermann, 1892)
Bayou killifish
Body slender, compressed; head flattened above, with convex upper profile; snout short (equal to or slightly < eye), rounded; cover of eye not continuous with head skin; front nostril not tubular; mouth small, oblique, opens at front, protrusible, at or slightly above level of center of eye; top jaw twisted, lower jaw projecting; 8 pores under chin; jaws with outer row of pointed conical teeth, inner band of simple teeth; gill rakers short, blunt 7; no spines in fins; dorsal fin short based, its origin before anal fin origin, 9-11 rays; anal fin with 3rd fin ray branched, 9-10 rays; pectoral with narrow base, rounded, inserted low on side, 18-19 rays; pelvics inserted well behind pectoral base; tail base slender; tail fin bluntly rounded; small smooth scales, 33-37 midlateral rows; lateral line reduced to a series of pits along side of body.
Females olive above, yellowish below, with many large black spots along flank, some in lines, dorsal fin with a dark spot at rear. Male olive above, yellowish below, with 12-17 narrow dark bars that are ~equal in width to pale interspaces, rear of body and inner parts of dorsal, anal and tail fins with small pearl spots; sometimes a large dark spot at rear of dorsal fin.
Reaches 7.5 cm.
Brackish bays and estuaries; brackish and marine.
Depth range: 0-1 m.
The northern Gulf of Mexico.

High Resolution Map Download
- Salinity
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- Marine
- Brackish
- Freshwater
- Inshore/Offshore
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- Inshore Only
- Inshore
- Water Column Position
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- Bottom
- Habitat
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- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Estuary
- Beach
- Freshwater
- FishBase Habitat
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- Demersal
- Feeding Group
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- Carnivore
- Data
- Diet
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- Data
- Mobile benthic crustacea (shrimps/crabs)
- Insects
- Egg Type
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- Data
- Benthic
- Pelagic larva
- No pelagic phase
- Global Endemism
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- All species
- West Atlantic Endemic
- Greater Caribbean endemic
- Regional Endemism
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- Gulf of Mexico endemic
- Continent
- All species
- Continent only
- GC endemic
- Residency
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- Resident
- Climate Zone
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- Subtropical (23-35N, Florida / Carolinas / Bermuda)
- IUCN Red List
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- Least concern
- Listed
- CITES
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- Not listed
- Length Max
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- 7.5
- Depth Range Min
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- 0
- Depth Range Max
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- 1