Yagura's scallop, Volachlamys yagurai (Makiyama, 1923), is a Pleistocene pectinid species from Japan. It was described as Pecten yagurai by Makiyama (1923) on the basis of "Pliocene" specimens from Maiko, Hyogo Prefecture. Prior to this publication, "Pecten yagurai Makiyama" was briefly introduced by Yagura (1922) for the same taxon from the same locality. The latter was intended to be published after Makiyama (1923), because Yagura (1922) noted "Pecten Yagurai was described as a new species by Mr. Jiro Makiyama, Kyoto Imperial University, in September, 1922". P. yagurai Yagura, 1922 is regarded as the earliest available name, because it was accompanied by photographs as an indication of new status (ICZN Art. 12.2.7). Consequently, Pecten yagurai Makiyama, 1923 is regarded as a junior synonym and a junior homonym of Pecten yagurai Yagura, 1922. Lectotypes of both taxa are designated herein for the fixation of the taxonomical confusion.