Rhiostoma asiphon

Rhiostoma asiphonThe shell is thick and depressed. The detached final whorl is shorter than the aperture width or nearly absent. The notch-shaped breathing device has a protruding outer lip with a shallow notch. It is known from the limestone islands of Ang Thong. It is known from the Ang Thong Islands, Surat Thani, Thailand.What does it look like?The shell is thick and depressed.Where and how does it live?It is known from the limestone islands of Ang Thong.The detached final whorl is shorter than the aperture width or nearly absent.The notch-shaped breathing device has a protruding outer lip with a shallow notch.Keeping it safeAn extinction-risk assessment has not been added yet.