The flat-headed cat is a small wild cat with short reddish-brown fur. Its head is elongated, and its ears are rounded. Its slender body is 41 to 50 cm long with a tail of 13 to 15 cm, and it weighs 1.5 to 2.5 kg.
The otter civet is a semiaquatic viverrid native to Thailand, Malaysia, Indonesia and Brunei. It is believed to be undergoing severe population decline due to habitat destruction and is classified as an endangered species by the IUCN Red List.
Sundadanio is a genus of freshwater ray-finned fishes and it is one of two genera in the family Sundadanionidae, known as the tiny danios. These fishes are typically found in peat swamps and blackwater streams, in Borneo and Sumatra in southeast Asia. At up to 2.3 cm (0.91 in) in standard length they are very small, but still larger than their close relatives Paedocypris. Species of the two genera are often found together.
Sundadanio axelrodi is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. This fish is known only from Bintan Island in the Riau Islands east of Sumatra. Originally described as a rasbora, Rasbora axelrodi, this tiny species was later deemed to be more closely related to the danios but not enough to be moved into the genus Danio. Sundadanio axelrodi reaches a maximum size of 1.7 cm. Sundadanio was considered monotypic until the genus was reassessed by Conway, Kottelat and Tan in 2011.
Katibasia is a monospecific genus of freshwater ray-finned fish belonging to the family Gastromyzontidae, a group which shares the common name hillstream loaches with the family Balitoridae. The only species in the genus is Katibasia insidiosa, a species of loach which is endemic to Sarawak, Eastern Malaysia.
The giant red tail gourami is a large species of gourami belonging to the family Osphronemidae. This endangered fish is native to the Southeast Asian island of Borneo, where only known from the Kinabatangan and Segama river basins in Sabah, East Malaysia. First described in 1992 based on an aquarium specimen, its exact range was not entirely certain, leading some source to incorrectly also report it from Indonesia.
The giant gourami is a species of large gourami native to freshwater habitats in Southeast Asia. It has also been introduced elsewhere. The species is commercially important as a food fish and is also farmed. It can be found in the aquarium trade, as well. The species has been used for weed control on highly invasive aquatic plants like Salvinia molesta, as the giant gourami can be a voracious herbivore.
Sundadanio atomus is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. It is endemic to Singkep, off Sumatra (Indonesia). It lives in peat swamp forests.
Sundadanio echinus is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. It is endemic to Borneo and found in West Kalimantan (Indonesia) and western Sarawak (Malaysia). It lives in peat swamps and blackwater streams.
Sundadanio gargula is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. It is endemic to Bangka Island, off Sumatra (Indonesia). It lives in coastal peat swamp forests.
Sundadanio goblinus is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. It is endemic to Sumatra (Indonesia). It lives in coastal peat swamp forests.
Sundadanio retiarius is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. It is endemic to Kalimantan, Indonesian Borneo, and known from the Kotawaringin and Kahayan River drainages. It lives in peat swamps and blackwater streams.
Sundadanio rubellus is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. It is endemic to Kalimantan, Indonesian Borneo, and known from the southern Kapuas River delta. It lives in peat swamp forests.
Diplocheilichthys jentinkii is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the carps, barbs, minnows and related fishes. This species was first formally described in 1904 as Osteochilus jentinkii by the Dutch ichthyologist Canna Maria Louise Popta with its type locality given as the Bongon River in the Mahakam River basin in eastern Borneo. The specific name honours the Dutch zoologist Fredericus Anna Jentink who was the curator of the Rijksmuseum van Natuurlijke Historie, Leiden, and edited the journal in which Popta published her description. This fish is endemism to Borneo where it occurs in the upper reaches of rivers in the Kapuas River basin in West Kalimantan, Indonesia, and in Sarawak, East Malaysia.
Lobocheilos ovalis is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs, minnows and related fishes. This species is endemic to northern Borneo where it is found in Sabah and Sarawak in East Malaysia, as well as in Brunei.
Pseudogobiopsis festivus is a species of goby endemic to Malaysia where it is only known from the rainforest freshwater streams of Sarawak.
Osphronemus septemfasciatus is a species of giant gourami, a type of Southeast Asian freshwater fish from the family Osphronemidae. It is endemic to the island of Borneo where it is found in the Malaysian state of Sarawak, in Brunei, and the Indonesian provinces of West Kalimantan, East Kalimantan and North Kalimantan. It is found in large slow-flowing rivers where it prefers the main channels, although juveniles also occur in large tributaries near the main river. Like its relatives, it is known to be an obligate air-breather. The largest recorded specimen of O. septemfasciatus, which possibly also is the largest giant gourami, was caught in Sarawak and it was 72.4 cm (28.5 in) in standard length, 87.2 cm (34.3 in) in total length and 20.5 kg (45 lb) in weight.
Betta ibanorum is a species of gourami endemic to southern Sarawak in Malaysia. The species name ibanorum was named after the Iban people, the largest group of people in the Sarawak. This species is a mouthbrooder, and grows to a length of 8.1 centimetres (3.2 in) SL.
Schismatorhynchos holorhynchos is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs. minnows and related fishes. This species is endemic toBorneo where it occurs only in Eastern Malaysia, in the Rajang River system in Sarawak and Sabah and in the basin of the Kinabatangan River. It is found in fast flowing rivers with gravel, rocky or stony beds.
Carinotetraodon salivator, also known as the striped red-eye puffer, is a species of freshwater pufferfish in the family Tetraodontidae. It is a tropical species known only from Sarawak, Malaysian Borneo, where it occurs at a depth range of 1 to 2 m. It is found in large, fast-flowing streams with silty and sandy bottoms, leaf litter, and submerged logs. It reaches 4 cm (1.6 in) standard length and is occasionally seen in the aquarium trade.
