Anguilla bicolorW
Anguilla bicolor

Anguilla bicolor is a species of eel in the genus Anguilla of the family Anguillidae, consisting of two subspecies.

Aplocheilus parvusW
Aplocheilus parvus

Aplocheilus parvus, the dwarf panchax, is a species of killifish native to India and Sri Lanka. This species grows to a length of 6.3 cm (2.5 in). Its natural habitats are sheltered fresh and brackish water tanks, small streams and rivulets overgrown with vegetation. They are rarely use as an aquarium fish. It is often misidentified as Aplocheilus panchax or as Aplocheilus blockii.

Attentive carpletW
Attentive carplet

The attentive carplet or silver carplet is a species of carplet in the family Cyprinidae. It is found in freshwater streams, ponds and rivers of India and Sri Lanka.

Bagarius yarrelliW
Bagarius yarrelli

Bagarius yarrelli, also known as the giant devil catfish or goonch, is a very large species of catfish in the genus Bagarius found in rivers in the Indian subcontinent. It is possibly also found in Southeast Asia, but this may involve a separate species.

Barilius bendelisisW
Barilius bendelisis

Barilius bendelisis is a fish in genus Barilius of the family Cyprinidae. It is found in Pakistan, India, Nepal, Bangladesh, Sri Lanka, Bhutan and Myanmar.

Barred danioW
Barred danio

The barred danio is a fish belonging to the minnow family (Cyprinidae). Originating in Sri Lanka, this fish grows to a maximum length of 2 inches (6 cm).

Boggut labeoW
Boggut labeo

Boggut labeo, or the minor carp is an Asian freshwater fish of the family Cyprinidae. It is known from Pakistan, India and Bangladesh.

Ceylon logsuckerW
Ceylon logsucker

Garra ceylonensis is a species of ray-finned fish in the cyprinid family. It is endemic to rivers and streams in Sri Lanka. - considered as a schooling fish(formerly known as "Ceylon").

Channa punctataW
Channa punctata

Channa punctata, the spotted snakehead, is a species of snakehead. It is found in the Indian Subcontinent and nearby areas, ranging across Afghanistan, Pakistan, India, Sri Lanka, Nepal, Bangladesh, Myanmar and Tibet. Its natural habitats are swamps, ponds and brackish water systems. It is a fish of high food value and has little value as aquarium fish.

Dawkinsia singhalaW
Dawkinsia singhala

Dawkinsia singhala is a species of ray-finned fish in the genus Dawkinsia. It is found in Sri Lanka. The genus Dawkinsia is named after evolutionary biologist Richard Dawkins.

Dawkinsia srilankensisW
Dawkinsia srilankensis

Dawkinsia srilankensis, the blotched filamented barb, is a species of ray-finned fish in the genus Dawkinsia. This species is endemic to the Kalu River in Sri Lanka and it is in imminent danger of going extinct due to tailings from upstream mines and potentially also capture for the aquarium trade. It was bred recently in the Dehiwala Zoological Gardens.

Eleotris fuscaW
Eleotris fusca

The dusky sleeper or brown spinecheek gudgeon is a species of fish in the family Eleotridae found in many Indo-West Pacific regions, from the coast of eastern Africa to Hawaii, where it can be found in lagoons, estuaries, and freshwater streams with muddy bottoms. This species can reach a length of 26 cm (10 in).

Esomus thermoicosW
Esomus thermoicos

Esomus thermoicos is a species of barb in the family Cyprinidae. It is found in freshwater streams, ponds and rivers of southern India and Sri Lanka. It is threatened by habitat loss. It is sometimes considered conspecific with the South Indian flying barb.

Giant danioW
Giant danio

The giant danio is a tropical fish belonging to the minnow family Cyprinidae. Originating in Sri Lanka, Nepal, and the west coast of India, this species grows to a maximum length of 4 inches (10 cm), making it one of the largest of the danionins. It is characterized by a blue and yellow, torpedo-shaped body with gray and clear fins.

Green carpletW
Green carplet

The green carplet or glowlight carplet, is a species of very small cyprinid fish that is found in slow-moving or still fresh and brackish water habitats in western Sri Lanka. Earlier thought to be a monotypic genus with the single species found in both Sri Lanka and India, an analysis published in 2013 showed that the Indian population should be recognized as a separate species, Horadandia brittani.

Green labeoW
Green labeo

The green labeo or mountain labeo is a species of freshwater fish in the family Cyprinidae. It is found only in Sri Lanka, where it occurs in some of the streams in the basin of the Mahaweli River.

Heteropneustes fossilisW
Heteropneustes fossilis

The Asian stinging catfish or fossil cat, Heteropneustes fossilis, is a species of airsac catfish found in India, Bangladesh, Pakistan, Nepal, Sri Lanka, Thailand, Myanmar, and Bhutan. In India in the state of Kerala it is locally called as kadu (Malayalam:കടു) or "karri" (Malayalam:കാരി). It is highly preferred in Assam and locally known as singhi. In Bangladesh this fish is called Singi Mach, In Sri Lanka, this fish is called hunga (හුංඟා) by the Sinhala-speaking community.

Labeo porcellusW
Labeo porcellus

Labeo porcellus is a species of fish in the family Cyprinidae, the carps and minnows. Its common name is the Bombay labeo. It is native to India.

Lepidocephalichthys thermalisW
Lepidocephalichthys thermalis

Lepidocephalichthys thermalis, known as the common spiny loach or the spotted loach, is a freshwater fish species found in India and Sri Lanka.

Malabar danioW
Malabar danio

The Malabar danio is a tropical fish belonging to the minnow family (Cyprinidae). Originating in Sri Lanka and the west coast of India, the fish has been circulated throughout the world through the aquarium fish trade. It grows to a maximum length of 6 in (15 cm) rarely exceeds 4 in (10 cm) in a home aquarium.

Mystus cavasiusW
Mystus cavasius

Mystus cavasius, the Gangetic mystus, is a species of catfish of the family Bagridae.

Mystus gulioW
Mystus gulio

Mystus gulio, the Long Whiskers Catfish, is a species of catfish of the family Bagridae. The generic name is probably derived from the Latin "mystax", meaning "moustache", due to the long barbels.

Mystus keletiusW
Mystus keletius

Mystus keletius, is a species of catfish of the family Bagridae. It is native to India and Sri Lanka.

Mystus vittatusW
Mystus vittatus

Mystus vittatus, the striped dwarf catfish, is a species of catfish of the family Bagridae. It is found in brackish water systems with marginal vegetation in lakes and swamps with a mud substrate of Asian countries Pakistan, India, Sri Lanka, Nepal, Bangladesh and probably Myanmar. Populations of Southeast Asian countries is in debate, due to close morphological similarities among Mystus species in that region.

Oligolepis acutipennisW
Oligolepis acutipennis

Oligolepis acutipennis, the Sharptail goby, is a species of goby native to marine, freshwater and brackish waters along the coasts of Indo-West Pacific region. This species can reach a length of 12 centimetres (4.7 in) TL.

Ompok bimaculatusW
Ompok bimaculatus

Ompok bimaculatus, known as butter catfish, is a species of sheatfishes native to Asian countries such as Bangladesh, India, Pakistan, and Sri Lanka, but recently identified in Myanmar.

Ophisternon bengalenseW
Ophisternon bengalense

Ophisternon bengalense the Bengal eel, Bengal mudeel or onegill eel, is a species of fish in the family Synbranchidae. It is endemic to freshwater and brackish water rivers and swamps in the Oceania and South Asia. It is normally 100 cm in maximum length.

Ornate paradisefishW
Ornate paradisefish

The ornate paradisefish or spotted gourami is a species of gourami endemic to Sri Lanka. It inhabits shallow, slow-flowing streams in forested areas shaded with plentiful vegetation near the edges and a substrate covered by leaf litter. It is a carnivore, preying on plankton, fish fry, and the larvae of insects. They can reach a length of 4 cm (1.6 in), though most are only around 2 cm (0.79 in). This species can also occasionally be found in the aquarium trade, where it is reportedly exceedingly shy. The specific name of this fish honours the Sri Lankan lawyer and judge Oswald Leslie De Kretser II.

Paracanthocobitis urophthalmaW
Paracanthocobitis urophthalma

Acanthocobitis (Paracanthocobitis) urophthalma, also known as the banded mountain zipper loach, is a species of ray-finned fish in the genus, or subgenus, Paracanthocobitis. This species is endemic to southwestern Sri Lanka.

Pseudosphromenus cupanusW
Pseudosphromenus cupanus

Pseudosphromenus cupanus, also known as the spiketail paradisefish is a species of medium-small gouramies native to southern India and Sri Lanka. This species is often found in shallow, slow-moving or stagnant water, such as ditches and paddy fields. P. cupanus eats insects and zooplankton. Males are known to gather eggs in its mouth, and to guard the nest after eggs are hatched. The male may build many nests, and periodically move the eggs between them.

Stenogobius gymnopomusW
Stenogobius gymnopomus

The Malabar goby, Stenogobius gymnopomus is a species of goby endemic to the Indo-Pacific regional countries such as India, Somalia, Indonesia, Andaman Islands. where it can be found in marine, brackish and fresh waters. The habitats include coastal waters, estuaries and tidal zone of rivers. This species can reach a length of 15.0 centimetres (5.9 in) SL. It feeds mainly on cladocerans, as well as fish eggs and scales. This species is a batch spawner which has a prolonged spawning season, extending from August to December in Kerala. The female's fecundity was between 46,323 and 61,291 eggs while the sex ratios favours males in local populations.

Tor khudreeW
Tor khudree

Tor khudree, the Deccan mahseer, Khudree mahseer, or black mahseer, is a freshwater fish of the carp family found in major rivers and reservoirs of India and Sri Lanka. Found throughout India, following large-scale introductions of artificially-bred fish across the country, but found of the largest size and in the greatest abundance in mountain or rocky streams. The fish as originally described by Sykes in his November 1838 paper 'On the Fishes of the Dukhun' as Barbus khudree, is a silvery-bluish coloured fish, with blood red fins or fins tipped with a bluish tinge. The type locality is the Mula-Mutha River close to the Indian city of Pune, a part of the Krishna River basin. Although there have been efforts to artificially breed this mahseer since the early1970's, there is no way to determine if these fish are Tor khudree, as the populations within the type locality have gone extinct.

Wallago attuW
Wallago attu

Wallago attu is a freshwater catfish of the family Siluridae, native to South and Southeast Asia. It is commonly known as helicopter catfish or wallago catfish. Some regional designations, such as the Manipuri Sareng, the Bengal Boal, the Sylheti Gual or the Malaysian and Indonesian Tapah are also occasionally used in English. W. attu is found in large rivers and lakes in two geographically disconnected regions, with one population living over much of the Indian Subcontinent and the other in parts of Southeast Asia. The species can reach a total length of 1 m.