Large teardrop shaped shell up to 100mm. Spire blunt, 5-6 very rounded whorls. Shell white or cream, porcellaneous, nearly smooth. Periostracum thin, may be rubbed off. Mouth oval, no siphonal canal, thin nacreous callus extends over last whorl, outer lip flared widely in adults.
- Smooth white shell
- Bulbous apex
- Thin nacreous callus extends from mouth over the last whorl
Lives on soft bottoms. Preys on echinoderms
North Atlantic, northern North Sea