Article text: Wikipedia contributors, Whiteline topminnow (source revision). Licensed under CC BY-SA 4.0. Retrieved 2026-10-11.
Whiteline Topminnow
Fundulus albolineatus
Fundulidae · freshwater water fish
2 minute read · Species guide

About Whiteline Topminnow
The whiteline topminnow, Fundulus albolineatus, was a type of killifish first identified in 1891. It was endemic to Big Spring, Madison County, Alabama, in the United States. This species was nearly identical to the barrens topminnow and grew to 3.75 inches (8.4 cm) long. It went extinct due to the rapid development of Big Spring leaving no habitat for it to thrive, and the last individuals were captured in 1889.
Diet and feeding
The FishTraits compilation records these diet categories for this species: 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 springs or subterranean waters.
The source records associations with sand, gravel, vegetation, organic debris. 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 May, Jun for the source’s reporting region (TN). This is a regional calendar, not a range-wide schedule.
Size and recorded longevity
FishTraits reports a maximum total length of 9 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 3.5 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 records by state
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
- Family
- Fundulidae
- Genus
- Fundulus
- Species
- Fundulus albolineatus
- ITIS TSN
- 165659
- WoRMS AphiaID
- 1019579
- GBIF key
- 5203684
Common questions about Whiteline Topminnow
What is the scientific name of Whiteline Topminnow?
Does Whiteline Topminnow live in fresh water or salt water?
Where has Whiteline Topminnow been recorded in the United States?
Closest relatives
Other Fundulus species
Same family