Keyword Album: Not%20yet%20identified.%20Rare.%20Calvi,%20Corsica%201998.%20I%20have%20been%20quite%20puzzled%20by%20this%20photo%20as%20well.%20Its%20size,%20colour%20and%20very%20raised%20gill%20and%20rhinophore%20pockets%20are%20just%20as%20in%20%20Platydoris%20argo.%20Unless%20I%20am%20very%20wrong%20this%20animal%20has%20had%20most%20of%20the%20mantle%20skirt%20removed.%20I%20don't%20know%20if%20this%20species%20is%20known%20to%20autotomise%20its%20mantle%20when%20alarmed,%20but%20that%20could%20be%20one%20means%20of%20mantle%20loss%20-%20another%20could%20have%20been%20the%20persistent%20nibbling%20of%20a%20crab%20or%20fish.%20Any%20other%20ideas%20would%20be%20welcome.%20Bill%20RudmanAustralian%20Museum,%20Sydney