Pomacanthus is a genus of marine angelfish that is usually found around reefs and coral. Some of the notable places one can see these vari-coloured fish includes the Maldives, Sri Lanka, and Sipidan off the southern coast of Sabah, Malaysia. Generally the patterns and colors of these fish undergo a major transformation from juvenile to adult forms. The juveniles may even appear to be a different species.
Ostorhinchus fleurieu is a species of cardinalfish native to the Red Sea and Persian Gulf, the Gulf of Oman, and the waters around East Africa, Seychelles, India, Sri Lanka, the Indo-Malayan region, and Hong Kong., south to the Ashmore Reef, Western Australia. It is the type species of the genus Ostorhinchus. The specific name honours the French explorer and hydrographer Charles Pierre Claret, comte de Fleurieu (1738-1810) who was a colleague and friend of Lacepède's.
The ornate paradisefish or spotted gourami, is a species of gourami endemic to Sri Lanka. It is the only recognized species in its genus.
Schismatogobius deraniyagalai, the redneck goby, is a species of goby native to India and Sri Lanka. This species inhabits river shallows, where it prefers areas with substrates that range from sand to gravel in which it can hide when threatened. This species can reach a total length of 4.5 cm (1.8 in). It can also be found in the aquarium trade. The specific name honours the Sri Lankan paleontologist and zoologist Paul E. P. Deraniyagala (1900-1976) for his contribution to the natural history of Sri Lanka.
The Ceylon killifish (Aplocheilus dayi) is a species of killifish endemic to Sri Lanka. This species grows to a length of 9 cm (3.5 in). Males and females have a black dot at the rear end of the base of the dorsal fin. The females lay 50–150 eggs. The specific name of this fish honours the Inspector-General of Fisheries in India Francis Day (1829-1889), who first reported this fish, although he identified it as Aplocheilus panchax.
Labeo dussumieri is fish in genus Labeo known to occur in west-flowing rivers of the Western Ghats. Earlier Sri Lankan population was considered as the same species as L. dussumieri, recent phylogenetic and physiological differences suggest that Sri Lankan population is a distinct species, Labeo heladiva..
The Dharna barb is a species of ray-finned fish in the genus Puntius. It is endemic to India.
Puntius kelumi is a species of cyprinid fish in the genus Puntius. It is found in Sri Lanka.
Puntius waageni is a species of ray-finned fish in the genus Puntius. This species is endemic to Pakistan.
Herbert Girton Deignan was an American ornithologist who worked extensively on the birds of Thailand.
Helcogramma billi is a species of triplefin blenny in the genus Helcogramma. It was described by Patricia E. Hadley Hansen in 1986, and the specific name honours the American ichthyologist Bill Smith-Vaniz, who collected the types Hadley Hansen examined when describing the species. This species is common on rock surfaces and beneath ledges in waters down to 10 metres (33 ft) in depth around the coasts of Sri Lanka.
Helcogramma ellioti, known commonly as the red-eye threefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Albert William Herre in 1944 who honoured the Scottish naturalist and ethnologist Walter Elliot (1803-1897) in its specific name. This species occurs in the Indian Ocean along the eastern and western coasts of India and around Sri Lanka.
Helcogramma serendip is a species of triplefin blenny in the genus Helcogramma. It was described by Wouter Holleman in 2007. This species is found only around the coasts of Sri Lanka and its specific name references the old Arabic name for Sri Lanka.
Colletteichthys is a genus of toadfishes found in the western Indian Ocean. The generic name is a compound of the surname Collette, in honour of the American ichthyologist Bruce Baden Collette to recognise his contribution to the study of toadfish, and the Greek ichthys meaning "fish".
Ophichthys desilvai is a commercially important, air-breathing species of fish in the family Synbranchidae. It is endemic to Sri Lanka and is the only endemic synbranchid from there.
Aplocheilus werneri is a species of killifish endemic to Sri Lanka. This species grows to a length of 7 cm (2.8 in). Its natural habitats are small, shallow, slow-flowing, heavily shaded streams and rivulets with a silt or clay substrate. They are largely use as an aquarium fish. The specific name honours the fish importer Andreas Werner who imported this species into Germany for the first time in 1964.
Plectorhinchus ceylonensis, the Sri Lanka sweetlips, is a species of marine ray-finned fish, a sweetlips belonging to the subfamily Plectorhinchinae, one of two subfamilies in the family Haemulidae, the grunts. It is native to the Indian Ocean around Sri Lanka. It inhabits waters over coral reefs at depths from 5 to 20 m. This species is rarely found in the aquarium trade.
Siganus insomnis, the bronze-lined spinefoot, is a species of marine ray-finned fish, a rabbitfish belonging to the family Siganidae. It is found in the northern central Indian Ocean. It had formerly been confused with S. lineatus, but was recognized as a separate species in 2014.
Centropyge flavipectoralis, known commonly as the yellowfin angelfish or moonbeam angelfish, is a marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is native to the Indian Ocean.
Aplocheilus blockii or the green panchax is a species of fish native to waters around India, Sri Lanka, and Pakistan.
