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The first is rissoa labiosa and is there for comparison. Looking for id of 2 and 3. I would say they are same species.Loc: north adriatic coast.
seems to be both alvania discors ( allan, 1818)
Thanks, check attached image.
Can't find any image on net that would have that scratch.

Checked local listing, what could be found here: Alvania cimex,Alvania discor,Alvania montagui

I can see something here: a.m.

http://www.conchology.be/?t=34&u=251501&...7daf3c8804

Is that it ?
well I'm believe that the 3rd shell is discors while the second could be schwartziana. you have to check the sculpture of the protoconch which must be a sort of  " orange peel"
Thanks, will stay at genus only.
as you like