Endangered
Giant red tail gourami
Osphronemus laticlavius
Giant red tail gourami is a gourami in the family Osphronemidae (order Perciformes) — Osphronemus laticlavius, recorded as Endangered.
Appearance
Adults have bright red fin edges with filamentous extensions. Body colour varies from gray-blue to gray-green to brown, darker on the back. Like other species of the genus Osphronemus, juveniles and adults are quite different, as in juveniles the colors are less dramatic and the bright red fins develops only with age.
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.
Range and habitat
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. The giant red tail gourami is not common. In a study of the Segama River that covered eight years only a few were caught, and it may already have disappeared from the lower Kinabatangan River. It is replaced in Brunei, Sarawak, and North, East and West Kalimantan by the closely related O. Septemfasciatus (this species may also occur in Sabah, but that is unconfirmed).
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
In crisis
The common giant gourami (O. Goramy) occurs at least in Sarawak and West Kalimantan, but this species is possibly not native to Borneo, instead being introduced.
Giant red tail gourami is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Giant red tail gourami, Wikidata item Q6411774. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.



