''Betta apollon'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of gourami. It is a

freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments differ from marine conditions in many ways, especially the difference in levels of s ...

native to

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...

, where it occurs only in shaded hillstreams in

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

. It is typically found in shallow, close-to-shore portions of streams in the vicinity of roots, plants, or leaf litter, although it may also be found in fast-flowing areas between boulders. The water in which the species occurs is usually clear, with a pH of 6.2, a conductivity of 20 to 40

μS A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or ) of a second. Its symbol is μs, sometimes simplified to us when Unicode is not available. A microsecond is equal to 1000 ...

/cm, and a temperature of 24 to 26 °C (75.2 to 78.8 °F). The species reaches 5.1 cm (2 inches) in

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish m ...

and is known to be a facultative air-breather. Its

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

, ''apollon'', refers to the god

Apollo Apollo, grc, Ἀπόλλωνος, Apóllōnos, label=genitive , ; , grc-dor, Ἀπέλλων, Apéllōn, ; grc, Ἀπείλων, Apeílōn, label=Arcadocypriot Greek, ; grc-aeo, Ἄπλουν, Áploun, la, Apollō, la, Apollinis, label= ...

References

apollon Apollon may refer to: * Apollo, ancient Greek god of light, healing and poetry * Apollon (Formula One), Formula One constructor * Apollon Kalamarias, Greek football club * Apollon Athens, a Greek football club from Athens * Apollon Limassol B.C., ...

Fish of Thailand Endemic fauna of Thailand Fish described in 2006 {{Anabantiformes-stub