| Smallhead stickleback | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Gasterosteidae |
| Genus: | Gasterosteus |
| Species: | G. microcephalus |
| Binomial name | |
| Gasterosteus microcephalus Girard, 1854 | |
| Synonyms | |
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The smallhead stickleback (Gasterosteus microcephalus), or resident threespined stickleback, is a fish species, which widespread in the basin of the Pacific Ocean: Japan, also Mexico. Freshwater demersal fish, up to 5.5 cm (2.2 in) length. Habits small streams, where feeds on aquatic insects and other invertebrates. This taxon is regarded by some authorities as a synonym of the three-spined stickleback (G. aculeatus), and others treat it as a subspecies of the three-spined stickleback, G. a. microcephalus.
References
- Froese, Rainer; Pauly, Daniel (eds.). "Gasterosteus microcephalus". FishBase. August 2022 version.
- Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Gasterosteus". Catalog of Fishes. California Academy of Sciences. Retrieved 28 November 2022.
- Christopher Scharpf. "Checklist of Freshwater Fishes of North America, Including Subspecies and Undescribed Forms". North American Native Fishes Association. Retrieved 28 November 2022.
| Taxon identifiers | |
|---|---|
| Gasterosteus microcephalus | |
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