Smallhead stickleback
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| Smallhead stickleback | |
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Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Gasterosteidae |
| Genus: | Gasterosteus |
| Species: | G. microcephalus
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| Binomial name | |
| Gasterosteus microcephalus Girard, 1854
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| 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.[1] This taxon is regarded by some authorities as a synonym of the three-spined stickleback (G. aculeatus),[2] and others treat it as a subspecies of the three-spined stickleback, G. a. microcephalus.[3]
References
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