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The Pseudomugilidae, the blue-eyes, are a subfamily of atheriniform fish in the rainbowfish family Melanotaeniidae. [1] They inhabit fresh and brackish water in Australia, New Guinea and nearby smaller islands. [2] Blue-eyes are small fish, typically no more than 5 cm (2.0 in) in length.
The forktail blue-eye (Pseudomugil furcatus) is a diminutive species of rainbowfish in the subfamily Pseudomugilinae. It is endemic to Papua New Guinea, south-east of Popondetta, where it is found in rainforest streams. It used to be placed in the genus Popondetta, and even separated as Popondichthys, but this is now considered erroneous.
Pseudomugil ivantsoffi is a species of blue-eye from the subfamily Pseudomugilinae, part of the rainbowfish family Melanotaeniidae.It is endemic to Western Papua in Indonesia. [2]
Pseudomugil is a genus of fish in the subfamily Pseudomugilinae endemic to Australia and New Guinea, ... (Fork-tail blue-eye) Pseudomugil gertrudae M. C. W. Weber ...
The Pacific blue-eye generally reaches a total length of around 3–3.5 cm (1 + 1 ⁄ 8 – 1 + 3 ⁄ 8 in) long; males can reach 8.8 cm (3 + 1 ⁄ 2 in) and females 6.3 cm (2 + 1 ⁄ 2 in). [4] The size of Pacific blue-eyes found north of the Burdekin Gap increases directly with distance from the gap, males and females being the same size.
Australian rainbowfish are popular aquarium fish along with Pseudomugil blue-eyes, which are another small, colourful fish found in a similar range and habitats. In the wild, some rainbowfish populations have been severely affected by the aggressive introduced eastern mosquitofish ( Gambusia holbrooki ), tilapia cichlids, and pollution.
Most species of rainbowfish are less than 12 cm (4.7 in) in length, with some species measuring less than 6 cm (2.4 in), while one species, Melanotaenia vanheurni, reaches lengths of up to 20 cm (7.9 in). They live in a wide range of freshwater habitats, including rivers, lakes, and swamps.
The honey blue-eye is a small, pale honey coloured fish that can attain up to 2.5–3 cm (1– 1 + 1 ⁄ 8 in) in length as an adult, with the largest recorded being a male of 3.8 cm (1 + 1 ⁄ 2 in). As the common name suggests, the honey blue-eye has blue eyes.
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