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Kryptopterus vitreolus
''Kryptopterus vitreolus'', known in the aquarium trade traditionally as the glass catfish〔〔〔SeriouslyFish: ''(Kryptopterus vitreolus. )'' Retrieved 18 July 2014.〕〔 and alternatively also as the ghost catfish〔 or phantom catfish,〔 is a small species of Asian glass catfish. It is commonly seen in the freshwater aquarium trade, but its taxonomy is confusing and was only fully resolved in 2013.〔Ng, H-H. and M. Kottelat (2013). ''After eighty years of misidentification, a name for the glass catfish (Teleostei: Siluridae)'' Zootaxa 3630: 308-316.〕〔 It is endemic to Thailand, where found in rivers south of the Isthmus of Kra that drain into the Gulf of Thailand and river basins in the Cardamom Mountains.〔〔 There are also unconfirmed reports from Penang in Malaysia.〔
Until 1989, it was considered to be the same as the "glass catfish" ''Kryptopterus bicirrhis'', a larger species infrequently seen in the aquarium trade.〔〔 Subsequently the ghost catfish commonly seen in the aquarium trade was believed to be the same as ''K. minor'', but in 2013 it was established that the aquarium specimens actually represented another species, which was described as ''K. vitreolus''.〔〔 The true ''K. minor'', which is restricted to Borneo, has rarely (if ever) entered the aquarium trade.〔〔〔''"(Kryptopterus minor" )''. ''Cat-eLog Data Sheets''. PlanteCatfish. 18 July 2014. Retrieved 18 July 2014.〕
==Description==
This is a transparent freshwater catfish with two long barbels. Standard lengths may range up to ,〔 but usually only reach around in total length.〔〔 They are transparent because, like all catfish, they are scaleless, and catfish within the genus ''Kryptopterus'' lack body pigment. Most of their organs are located near the head; with a magnifying glass, their heart can be seen beating. When the light strikes the fish just right, it can create an iridescent rainbow color. After death, they turn milky white.〔 The scientific species name ''vitreolus'' is derived from the Latin ''vitreus'', which means glass.〔 Among described species of ''Kryptopterus'', only two other species, ''K. minor'' and ''K. piperatus'', have clearly transparent bodies and both these are largely–if not entirely–absent from the aquarium trade.〔〔 The body of others, including ''K. bicirrhis'', are only somewhat translucent or opaque.〔〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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