Using 3D virtual surfaces to investigate molluscan shell shape Massimiliano Scalici, Lorenzo Traversetti, Federica Spani, Raffaella Bravi, Valentina Malafoglia, Tiziana Persichini and Marco Colasanti Aquat. Living Resour., 29 2 (2016) 207 Published online: 26 July 2016 DOI: 10.1051/alr/2016019