Article text: Wikipedia contributors, Diamond killifish (source revision). Licensed under CC BY-SA 4.0. Retrieved 2026-10-11.
Diamond Killifish
Adinia xenica
Fundulidae · freshwater and saltwater and brackish water fish
1 minute read · Species guide
About Diamond Killifish
The diamond killifish (Fundulus xenicus) is a species of North American killifish found in salt marshes, hypersaline flats and mangrove along the Gulf Coast of the United States. This species grows to a length of 6 cm (2.4 in). It is found in the aquarium trade. It was previously recognized as, Adinia xenica, the only known member of the genus Adinia. Nucleotide analyses has reevaluated the phylogeny of the Funduliidae and placed the diamond killifish into the Fundulus genus.
Range
Where it lives
0%
95%of mapped records
Share of records by state
Habitat
Water and movement
- Water
- WoRMS records this species in fresh water, brackish water and the sea.
Classification
Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Superclass
- Actinopterygii
- Class
- Teleostei
- Order
- Cyprinodontiformes
- Family
- Fundulidae
- Genus
- Adinia
- Species
- Adinia xenica
- ITIS TSN
- 165682
- WoRMS AphiaID
- 279509
- GBIF key
- 5203615
Common questions about Diamond Killifish
What is the scientific name of Diamond Killifish?
The scientific name is Adinia xenica, in the family Fundulidae. Classification follows ITIS.
Does Diamond Killifish live in fresh water or salt water?
WoRMS records this species in fresh water, brackish water and the sea.
Where has Diamond Killifish been recorded in the United States?
GBIF has observations in 5 states, with the most records in Texas, Florida, Louisiana. The map shows observation records, which do not establish the complete natural range.
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