相模湾より得られたスナクモヒトデ（棘皮動物門：クモヒトデ綱：完蛇尾上目）の骨片形態とCOI遺伝子配列情報を伴う再記載

抄録

Amphipholis kochii Lütken, 1872 is redescribed based on two discovered specimens from the Sagami Bay, central-eastern Japan. Detailed morphology of internal ossicles as well as external features and sequence of mitochondrial COI gene of A. kochii is provided for the first time.