Southern Starhead Topminnow

Fundulus blairae

Fundulidae · freshwater water fish

2 minute read · Species guide

Southern Starhead Topminnow field guide illustration

About Southern Starhead Topminnow

Southern starhead topminnow are small freshwater fish associated with vegetated creek and small-river habitats.

Natural history

FishTraits records use of soft-bottom settings, including muck, clay, and silt. Its diet categories include algae or phytoplankton and small animal prey. Such categories give a broad ecological outline rather than naming the exact food taken by an individual fish.

The compilation records reproduction from April through July in Alabama, with a representative maturity estimate of one year. These are regional life-history observations. FishBase also identifies the species as a non-annual killifish, so its life cycle should not be equated with the specialized seasonal-pool strategy of annual killifishes.

Sources: Fundulus blairae species summary; FishTraits: ecological and life-history traits

Guide sources

Research reviewed 2026-10-19.

Diet and feeding

The FishTraits compilation records these diet categories for this species: algae or phytoplankton; invertebrates or larval fish. These are broad categories, not a claim that every individual consumes every example in a category.

Habitat preferences

Reported habitat associations include streams and small rivers, creeks.

The source records associations with muck, clay or silt, vegetation. An association indicates reported use, rather than an exclusive requirement.

Reproduction and parental care

The compilation reports a representative maturity age of 1 years. Its maturity field summarizes mean, median, or modal estimates, usually for females; male estimates can be used when female data are unavailable. It is not a fixed age at which every fish first breeds.

Recorded spawning months are Apr, May, Jun, Jul for the source’s reporting region (AL). This is a regional calendar, not a range-wide schedule.

Size and recorded longevity

FishTraits reports a maximum total length of 8 centimetres. Some entries use an estimated asymptotic length; this value should not be treated as a certified record catch.

Recorded longevity in the compilation is 2.5 years. Wild observations were preferred, but captive records were accepted where wild records were unavailable, and unspecified records were assumed wild. The value is not a guaranteed wild lifespan or an aquarium life expectancy.

Range

Where it lives

Share of 779 GBIF observation records with a state location, across 7 states.
0%
54.7%
Share of 779 GBIF observation records with a state location, across 7 states.

Habitat

Water and movement

Water
WoRMS records this species in fresh water.
Migration
Not migratory

Classification

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Superclass
Actinopterygii
Class
Teleostei
Order
Cyprinodontiformes
Genus
Fundulus
Species
Fundulus blairae
ITIS TSN
201973
WoRMS AphiaID
1012833
GBIF key
5203652

Common questions about Southern Starhead Topminnow

What is the scientific name of Southern Starhead Topminnow?
The scientific name is Fundulus blairae, in the family Fundulidae. Classification follows ITIS.
Does Southern Starhead Topminnow live in fresh water or salt water?
WoRMS records this species in fresh water.
Where has Southern Starhead Topminnow been recorded in the United States?
GBIF has observations in 7 states, with the most records in Texas, Louisiana, Oklahoma. The map shows observation records, which do not establish the complete natural range.

Closest relatives

Other Fundulus species

Banded Killifish31 states
Fundulus diaphanusFundulidaeNative and introducedFreshBrackish
Banded Topminnow5 states
Fundulus cingulatusFundulidaeNativeFresh
Barrens Topminnow1 states
Fundulus julisiaFundulidaeNativeFresh
Bayou Killifish6 states
Fundulus pulvereusFundulidaeNativeFreshSaltBrackish
Blackspotted Topminnow17 states
Fundulus olivaceusFundulidaeNativeFresh
Blackstripe Topminnow20 states
Fundulus notatusFundulidaeNativeFresh
Broadstripe Topminnow2 states
Fundulus euryzonusFundulidaeNativeFresh
California Killifish1 states
Fundulus parvipinnisFundulidaeNativeSaltBrackish
Golden Topminnow14 states
Fundulus chrysotusFundulidaeNativeFresh
Gulf Killifish11 states
Fundulus grandisFundulidaeNative and introducedFreshBrackish
Lined Topminnow8 states
Fundulus lineolatusFundulidaeNativeFresh
Longnose Killifish6 states
Fundulus similisFundulidaeNativeSalt
Marsh Killifish14 states
Fundulus confluentusFundulidaeNativeFreshSaltBrackish
Mummichog22 states
Fundulus heteroclitusFundulidaeNativeFreshSaltBrackish
Northern Starhead Topminnow16 states
Fundulus disparFundulidaeNativeFresh
Northern Studfish21 states
Fundulus catenatusFundulidaeNative and introducedFresh
Plains Killifish16 states
Fundulus zebrinusFundulidaeNative and introducedFreshBrackish
Plains Topminnow11 states
Fundulus sciadicusFundulidaeNative and introducedFresh
Russetfin Topminnow3 states
Fundulus escambiaeFundulidaeNativeFresh
Saltmarsh Topminnow5 states
Fundulus jenkinsiFundulidaeNativeSaltBrackish
Seminole Killifish4 states
Fundulus seminolisFundulidaeNativeFresh
Speckled Killifish2 states
Fundulus rathbuniFundulidaeNativeFresh
Spotfin Killifish12 states
Fundulus luciaeFundulidaeNativeSaltBrackish
Stippled Studfish1 states
Fundulus bifaxFundulidaeNativeFresh

Same family

More Fundulidae

Banded Killifish31 states
Fundulus diaphanusFundulidaeNative and introducedFreshBrackish
Banded Topminnow5 states
Fundulus cingulatusFundulidaeNativeFresh
Barrens Topminnow1 states
Fundulus julisiaFundulidaeNativeFresh
Bayou Killifish6 states
Fundulus pulvereusFundulidaeNativeFreshSaltBrackish
Blackspotted Topminnow17 states
Fundulus olivaceusFundulidaeNativeFresh
Blackstripe Topminnow20 states
Fundulus notatusFundulidaeNativeFresh
Blue-fintop Minnow7 states
Lucania goodeiFundulidaeNativeFresh
Broadstripe Topminnow2 states
Fundulus euryzonusFundulidaeNativeFresh
California Killifish1 states
Fundulus parvipinnisFundulidaeNativeSaltBrackish
Diamond Killifish5 states
Adinia xenicaFundulidaeNativeFreshSaltBrackish
Golden Topminnow14 states
Fundulus chrysotusFundulidaeNativeFresh
Gulf Killifish11 states
Fundulus grandisFundulidaeNative and introducedFreshBrackish
Lined Topminnow8 states
Fundulus lineolatusFundulidaeNativeFresh
Longnose Killifish6 states
Fundulus similisFundulidaeNativeSalt
Marsh Killifish14 states
Fundulus confluentusFundulidaeNativeFreshSaltBrackish
Mummichog22 states
Fundulus heteroclitusFundulidaeNativeFreshSaltBrackish
Northern Starhead Topminnow16 states
Fundulus disparFundulidaeNativeFresh
Northern Studfish21 states
Fundulus catenatusFundulidaeNative and introducedFresh
Plains Killifish16 states
Fundulus zebrinusFundulidaeNative and introducedFreshBrackish
Plains Topminnow11 states
Fundulus sciadicusFundulidaeNative and introducedFresh
Pygmy Killifish5 states
Leptolucania ommataFundulidaeNativeFresh
Rainwater Killifish20 states
Lucania parvaFundulidaeNative and introducedFreshSaltBrackish
Russetfin Topminnow3 states
Fundulus escambiaeFundulidaeNativeFresh
Saltmarsh Topminnow5 states
Fundulus jenkinsiFundulidaeNativeSaltBrackish

All 32 species in Fundulidae