Peacock gudgeon

Rarity: Common

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At a glance

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What Wikipedia says

The peacock gudgeon or peacock goby (Tateurndina ocellicauda) is a tropical freshwater species of fish in the family Eleotridae that is endemic to the eastern part of Papua New Guinea. It can be found in schools hovering over the substrate in rivers and ponds. This species can reach a length of 7.5 cm (3.0 in).

Excerpt from the Wikipedia article “Peacock gudgeon”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Dirk Godlinski, CC BY-SA 3.0, via Wikimedia Commons.