13.1 Crepidula fornicata COMPARE Calyptraea chinensis

13.1 Crepidula fornicata COMPARE Calyptraea chinensis

Calyptraea chinensis nearly circular aperture with septum (1).  Patelliform cone with central apex (2). Large pale ctenidium (3). Body translucent whitish with opaque white spots (4). Portland Harbour, England, April 2012.