| Trigonostigma | |
|---|---|
 | |
| Harlequin rasbora, Trigonostigma heteromorpha | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Cyprinidae |
| Subfamily: | Danioninae |
| Genus: | Trigonostigma Kottelat & K. E. Witte, 1999 |
| Type species | |
| Rasbora heteromorpha Duncker, 1904 | |
Trigonostigma is a genus of small cyprinid fish found in Southeast Asia. These social, colorful freshwater fish are often kept in aquariums.
There are currently five recognized species in this genus: [1]
Rasbora is a genus of fish in the family Cyprinidae. They are native to freshwater habitats in South and Southeast Asia, as well as southeast China. A single species, R. gerlachi, is only known from an old specimen that reputedly originated from Africa (Cameroon), but this locality is considered doubtful. They are small, up to 17 cm (6.7 in) long, although most species do not surpass 10 cm (4 in) and many have a dark horizontal stripe.
The harlequin rasbora is a small fish in the family Cyprinidae. The species became an instant favorite among aquarists after its introduction in the early 1900s and is the best known and most widely kept species among the rasboras. In 1935, an image of a trio of harlequin rasboras, stamped in 14k gold, would grace the cover of the first edition of William T. Innes's classic Exotic Aquarium Fishes and would remain so through all 19 editions.
Sundadanio axelrodi is a danionin in the family Cyprinidae, with origin from Borneo, Bangka, and 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.
The eyespot rasbora is a small fish belonging to the Family Cyprinidae, subfamily Danioninae, which is known by the common names of ocellated rasbora, hi-spot rasbora, and eye-spot rasbora, an allusion to the marking situated upon the dorsal fin. This small fish is a popular aquarium fish, having been one of the species featured in the landmark textbook Exotic Aquarium Fishes by Dr William T. Innes. Its appearance in this work only occurs in later editions of the book, however, therefore the species is not subject to the same degree of aquarium domestication as the more familiar harlequin rasbora.
The goldstripe rasbora is a species of ray-finned fish in the genus Rasbora. It is a benthopelagic freshwater fish found in Malaysia and Indonesia.
The twospot rasbora is a species of ray-finned fish in the genus Rasbora native to south east asia. It is one of the members of the Sumatrana group.
Rasbora meinkeni is a species of cyprinid fish in the genus Rasbora from Sumatra.
The yellowtail rasbora is a species of freshwater ray-finned fish in the genus Rasbora from mainland south-east Asia.
The espei rasbora, or lambchop rasbora is a species of ray-finned fish in the genus Trigonostigma. It is named after the dark band that appears like a lamb chop along its body. The species is predominantly found in Thailand and Cambodia, with a population additionally known to occur on the island of Phú Quốc in Vietnam.
The glowlight rasbora is a species of cyprinid fish in the genus Trigonostigma.
Trigonostigma somphongsi is a species of ray-finned fish in the genus Trigonostigma. It is endemic to Thailand. It is threatened by habitat loss.
Brevibora is a genus of cyprinid freshwater fish native to Southeast Asia. They are small, no more than 2.8 cm (1.1 in) in standard length, and restricted to acidic blackwater rivers, streams and peat swamp lakes in the Malay Peninsula, Sumatra and Borneo.
Rasboroides is a genus of small cyprinid fishes endemic to Sri Lanka. They are found in small, slow-flowing and shaded streams in the southwestern part of the island. They are essentially restricted to lowlands, although one introduced population occurs at an altitude of 980 m (3,220 ft). They are calm, social and attractively colored fish that sometimes are kept in aquariums.
The danionins are a group of small, minnow-type fish belonging to the family Cyprinidae. Members of this group are mostly in the genera Danio, Devario, and Rasbora. They are primarily native to the fresh waters of South and Southeast Asia, with fewer species in Africa. Many species are brightly coloured and are available as aquarium fish worldwide. Danio species tend to have horizontal stripes, rows of spots, or vertical bars, and often have long barbels. Devario species tend to have vertical or horizontal bars, and short, rudimentary barbels, if present at all. All danionins are egg scatterers, and breed in the rainy season in the wild. They are carnivores, living on insects and small crustaceans.
Paul Georg Egmont Duncker was a German ichthyologist.
Rasbora truncata is a species of ray-finned fish in the genus Rasbora. It is endemic to the Alas River in northwestern Sumatra.
Trigonostigma truncata, is a species of ray-finned fish in the genus Trigonostigma.
Rasbora marinae, or Marina's rasbora, is a recently described species of cyprinid fish in the genus Rasbora, in 2020. Several Rasbora specimens from 1996 - 2005, resembling R. cephalotaenia were examined and found to be a new species, due to their unique body pattern in adulthood.
Betta andrei is a species of gourami in the family Osphronemidae. It is a black water fighting fish that is endemic to Singkep Island, Indonesia. It was described in 2023 by Heok Hui Tan, who named it after Andre Chandra, a fish collector and enthusiast who helped him during his fieldwork.
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