Order Atheriniformes
Family Pseudomugilidae
Genus Pseudomugil.
Continued…
— Swamp Blue Eye — Pseudomugil paludicola [Allen & Moore, 1981]. (Eng. Swamp Blue Eye). Southern part of New Guinea, Binaturi River, Kikori. 4 cm. The fish has a translucent body with a slight beige-yellow coating, a silvery head and belly, blue eyes, and a milky border on the dorsal fins. Pelvic fins are yellowish. The edge of the second dorsal and caudal fins in males is yellowish. Males are easily distinguished from females by their rich coloration and more elongated dorsal fin. Females are smaller, paler, and have smaller fins. In females, the base of the caudal fin is slightly yellow, and the front part of the anal fin is pale yellow.
There are geographically isolated groups that have their own distinct color. Fish from Sorong in Western New Guinea have a translucent body; males have a beautiful blue color, very similar to Pseudomugil cyanodorsalis, but not as intense. The belly, chest, and anal fin have a slight yellowish tint. In the upper reaches of the Kikori River in New Guinea, there is a yellow morph. Peaceful, active, schooling. They need several areas of dense thickets on the sides and swimming space, and always stay right under the water surface. dH 6-15°, pH 6.8-7.5, T 24-27°C.
— Delicate Blue Eye — Pseudomugil tenellus [Taylor, 1964]. (Eng. Arnhem Land Blue Eye, Delicate Blue Eye). Northern Australia, Queensland, southern part of New Guinea, Aru Island. 4-5 cm. Fish differ somewhat in coloration depending on their habitat. The upper part of the body is translucent with a golden-brown tint, and the lower part is yellowish-brown with a silvery sheen. The part of the body adjacent to the dorsal and anal fins is colored light yellow.
A stripe consisting of individual silvery spots runs along the entire body of the male. As the fish grows, these spots increase in size. Scales have a black border that creates an attractive lacy pattern. The fins have a golden background with orange-yellow outer edges, often bordered with a white stripe. The caudal, anal, and dorsal fins of males are orange with a black border. The second dorsal and anal fins are dark near the base and yellow at the edges, with several semicircular white spots. Pelvic fins are orange along the rear edge.
Females and juveniles are colored similarly, only slightly less intensely. In addition, their fins are much smaller than those of males, slightly rounded, and completely uncolored. Females usually have a higher body than males. Males are easily distinguished from females by their brighter coloration and elongated dorsal and anal fins. Coloration can be variable and depends on the fish’s mood, water quality, and diet. There are 3 color forms: yellow versions are more common, while white and red ones are rarer.
Aquarium with dense vegetation on the edges, floating plants on the surface, driftwood or branches covered with fine-leaved moss. Peaceful, active, schooling; keep only in a school of 8 or more individuals with a predominance of females. Single specimens constantly hide in plant thickets. They need several areas of dense thickets and swimming space, and always stay right under the water surface.
Marosatherina ladigesi, Telmatherina bonti.
Pseudomugil paskai, pellucidus, reticulates, signifer. 
