Yirrkala kaupii is an eel in the family Ophichthidae (worm/snake eels).Yirrkala kaupii at www.fishbase.org. It was described by Pieter Bleeker in 1858, originally under the genus Sphagebranchus.Bleeker, P., 1858 [ref. 16962] Twaalfde bijdrage tot de kennis der vischfauna van Celebes. Visschen van Manado. Acta Societatis Regiae Scientiarum Indo-Neêrlandicae v. 5: 1-4. [Date of publication from Kottelat 2011:78 [ref. 31413] as 1858.] It is a tropical, freshwater eel which is known from Indonesia and the Philippines. Males can reach a maximum total length of .
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