Syntypes of Planorbis agraulus Bourguignat, 1864 are compared with a recently collected Planorbis sp. Which could be indentified as P. agraulus, too. So we can provide the anatomy of the species under discussion for the first time. Comparisons with data in the literature showed us that P. agraulus is possibly not in Italy and thus is not conspecific with Planorbis moquini Requien, 1848. So the question arose which Planorbis spp. live in Italy.