Minohellenus macrocheilus sp. nov. (Decapoda: Crustacea) from the Oligocene Ashiya Group, Kyushu, Japan

Abstract

Minohellenus macrocheilus sp. nov. (Portunidae, Decapoda, Crustacea) is described from the Upper Oligocene Ashiya Group of Fukuoka Prefecture, Kyushu. The genus Minohellenus Karasawa, 1990 is transferred from the subfamily Portuninae Rafinesque, 1815 to the Polybiinae Ortmann, 1893.