Kuyūthā (Arabic: كيوثاء) is the cosmic bull in medieval Islamic cosmography. It is said to carry on its back the angel who shoulders the earth and the rock platform upon which the angel stands. The bull is said to stand on the giant fish or whale, Bahamut.
The bull is variously described as having 40,000 horns and legs, or as many eyes, ears, mouths and tongues in the oldest sources. The number of appendages can vary in later versions. It's breathing is said to control the tides of the ocean.
Kīyūbān (Arabic: کیوبان) or Kibūthān (Arabic: کبوثان) also appear in printed editions of Qazwini's cosmography. These have been claimed to be corruptions of Leviathan (Arabic: لوياتان). Alternate names include Al-Rayann and Rakaboûnâ.
Kuyootà, Kuyoothán were forms of the name as transcribed by Edward Lane, and given as Kuyata (Spanish), Kujata (old English translation, 1969), and Quyata (revised English translation) in various editions of Jorge Luis Borges's Book of Imaginary Beings; it has also been re-transcribed from Lane as Kuyūta.Kujūta was given by Thomas Patrick Hughes's Dictionary of Islam.
"Kuyootà" was Edward Lane's transcription of the beast's name according to an Arabic source not clearly specified. This became "Kuyata" in Jorge Luis Borges's El libro de los seres imaginarios (originally published as Manual de zoología fantástica, 1957). Then in its first English translation Book of Imaginary Beings (1969) it was further changed to "Kujata", and then to "Quyata" (in the 2005 translation).