The pearl gourami is a species of gourami native to Southeast Asia.
Phillips's garra is a species of freshwater fish in the family Cyprinidae. It is found only in Sri Lanka, where it is restricted to a single stream on the Moussakele tea estate, near Gammaduwa in the Upper Knuckles mountain range at altitudes between 1,036 and 1,066 m ASL.
Betta chini is a species of gourami endemic to the island Borneo where it is only known from the Malaysian state of Sabah. It inhabits very shallow waters of peat swamps. Males of this species can reach a length of 5.1 centimetres (2.0 in) SL while females can reach a length of 5.6 centimetres (2.2 in).
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.
Istiblennius muelleri, Mueller's rockskipper, is a species of combtooth blenny found in the western Pacific ocean. Males of this species can reach a maximum of 7 cm (2.8 in) SL, while females can reach a maximum of 5.5 cm (2.2 in) SL. The specific zoology honours the German-Australian physician, geographer, and botanist Ferdinand von Mueller (1825-1896).
Betta enisae is a species of gourami endemic to the Kapuas River basin of Indonesia. It is an inhabitant of forest streams with slightly acidic waters, and can mostly be found in the shallows amongst the leaf litter. This species grows to a length of 5.9 cm (2.3 in). It is commonly used as bait by local fishermen and has been found in the aquarium trade. The specific name of this fish honours Enis Widjanarti who assisted Kottelat in his expedition to the Kapuas Lakes.
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.
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.
Betta edithae is a species of gourami endemic to Indonesia where it occurs in Kalimantan, Sumatra and the Riau Archipelago. This species grows to a length of 8.2 cm (3.2 in), and can be found in the aquarium trade. The specific name honours the German aquarist Edith Korthaus (1923-1987), who co-discovered this species with her husband Walter Foersch. Walter is honoured in the specific name of another species they discovered, Betta foerschi.
Betta tussyae is a species of gourami endemic to Malaysia where it is only known from Pahang. It is an inhabitant of peat swamps. This species grows to a length of 3.7 centimetres (1.5 in) SL. The specific name honours Tussy Nagy, the wife of the Austrian aquarist Peter Nagy, because in 1979 this couple were the first fish collectors to import this species into Europe.
Betta foerschi is a species of gourami endemic to the island of Borneo, where it is only known from the southern portion. It inhabits creeks in the rain forest. This species grows to a length of 7 cm (2.8 in). It can be found in the aquarium trade. The specific name of this fish honours the German physician and aquarist Walter Foersch (1932-1993), who collected the type with his wife Edith Korthaus. Edith is honoured in the specific name of another species they discovered, Betta edithae.
Betta waseri is a species of gourami endemic to Peninsular Malaysia. It is an inhabitant of well shaded blackwater streams and in peat forests with plentiful organic debris and root growth. This species grows to a length of 9.8 centimetres (3.9 in) SL. The specific name honours the leader of the expedition on which the type of this species, the German aquarist Alfred Waser.
The Malay combtail is a species of gourami native to southeast Asia where it is found in peat swamps of the Malay Peninsula and the Greater Sunda Islands. This species can reach a length of 20 centimetres (7.9 in) SL. It is a commercially important species and is also found in the aquarium trade. This species was formally described by Georges Cuvier in 1831 with the type locality of Java. The collector of the type was collected in 1820 by the Dutch physician and biologist Johan Coenraad van Hasselt (1797-1823), whom Cuvier honoured in its specific name, with his friend Heinrich Kuhl.
The fourspine leaffish, is a species of in the Nandidae native to rivers and streams in Ivory Coast and Ghana. Although placed in the family Nandidae by FishBase, most recent authorities place Afronandus in Polycentridae. The specific name honours the collector of the type, Leo Sheljuzhko (1890–1969), a Ukrainian-German entomologist who sent the type to Meinken.
The Danube whitefin gudgeon is a species of freshwater fish in the family Cyprinidae. It is distributed in the Danube drainage. The maximal length is 11.5 cm, maximal reported age 4 years.
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.
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.
Trichopodus poptae is a species of ray-finned fish in the subfamily Luciocephalinae, part of the gourami family Osphronemidae. It is distinguished from its congeners by the faint, almost indiscernible patterning on the body apart from the black blotch at the base of the tail. This species is endemic to Kalimantan, the Indonesian part of the island of Borneo.
The licorice gourami is a species of freshwater ray-finned fish from the subfamily Macropodusinae, part of the family Osphronemidae, the gouramis. It is endemic to Bangka in Indonesia where it is found in the slow, flowing streams with black waters associated with peat swamp forests. This species was formally described by the Dutch ichthyologist Pieter Bleeker as Osphromenus deissneri in 1859 with the type locality given as Sungai Baturussa basin at 8 kilometres from Pudingbesar on the road to Kampong Simpan, Bangka. It is the type species of the genus Parosphromenus. The specific name honours F. H. Deissner, a military health officer, who sent a collection of specimens of fishes from Bangka to Bleeker which included the type of this species.
