The Opistognathus iyonis lives in the demersal, marine environment.
Opistognathus iyonis Yoshino, 1984Gnathypops iyonis Jordan & Thompson, 1913; (valid as) - Opistognathus latitabundus Allen & Swainston, 1988Tandya latitabunda Whitley, 1937; (valid as) - Opistognathus leprocarus Smith-Vaniz, 1997 - More
Nirami-amadai in Japanese (日本語)
伊氏后颌鰧 in Mandarin Chinese
伊氏後頜鰧 in Mandarin Chinese
裸背鰧 in Chinese (中文)
裸背鰧 in Mandarin Chinese
흑점후악치 in Korean (한국어)