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The peaceful betta or crescent betta (Betta imbellis) is a species of gourami native to Southeast Asia. Betta imbellis has a pair of suprabranchial chambers that each house a labyrinth organ , a complex bony structure lined with thin, highly vascularised respiratory epithelium .
Betta splendens can be hybridised with B. imbellis, B. mahachaiensis, and B. smaragdina, though with the latter, the fry tend to have low survival rates. In addition to these hybrids within the genus Betta, intergeneric hybridisation of Betta splendens and Macropodus opercularis, the paradise fish, has been reported. [43]
A useful distinction is that, while the generic name Betta is italicized and capitalized, when used as a common name it is usually neither italicized nor capitalized. [5] The common name of B. pugnax, for example, is thus Penang betta. Betta splendens, the Siamese fighting fish, is often referred to simply as a "betta" in the U.S.
The King betta generally grows to about 5–6 cm (2–2 1/2 in). Its pigments are generally vibrant beige to a white. As with most bettas, King betta females are smaller and less colorful than the males. The life span of the King betta is short, generally 2–3 years, rarely reaching four.
Betta mahachaiensis is a species of bubble-nesting betta native to Thailand, [2] where it occurs naturally near the Gulf of Thailand. It is typically seen in stagnant waters in swamps, pools, and ponds. The species can be found in brackish waters, with salinity levels between 1.1 and 10.6 parts per thousand.
The giant betta (Betta anabatoides) is a species of freshwater ray-finned fish in the subfamily Macropodusinae, part of the gourami family. [2] It is endemic to South Kalimanatan, Katingan, and Sampit in Indonesian Borneo. It is found in a variety of freshwater habitats and is a paternal mouthbrooder.
Betta unimaculata, the Howong betta, is a species of labyrinth fish endemic to the island of Borneo where it is only known from the eastern portion of the island. This species grows to a length of 12.6 centimetres (5.0 in) TL , one of the largest known species of Betta .
These savings would be realized over the course of a decade-long production run of 1,500 tanks, as well as the eventual use of the factory to produce other kinds of vehicles and serve as a repair depot for Egypt's fleet of M60 Patton main battle tanks. [1] In 1984, Egypt signed a US$150 million contract with General Dynamics for the ...