形態特徵:Shell' minute' subtranluscent' fragile' oval-conic with apex' blunt. Mature whorls' 3-4 with body whorl' large' inflated; sutures' impressed. A few ribs' narrow' short on the body whorl; color' pale white but reddish brown at bottom.
棲所環境:At 92 meters depth of Three Kings Islands' New Zealand is the fatherland. It is also found as beach drift at Lutao' Taiwan.