Abstract
Forty-two specimens of a gohy hitherto unrecorded from Japan were recently collected from Ishigakijima, one of the southern islands of Okinawa Prefecture.These specimens were identified as Mangarinus waterousi Herre after comparison with the type specimens.
Herre (1943) reported that this species has “two large flat incisor-like teeth on the vomer”.However, after our examination of Japanese specimens, the so-called teeth of the original description.were found to be not teeth, but slight downward projections of the anterior lateral sides of the vomer.
