Goodmorning all, Starting of with a difficult question this morning. Somebody gave me shells from an old collection, including the labels. The shells were collected in the early 50's. Most of the shells I have identified and I found the current valid name. Some names remain a mystery to me. I hope that somebody can shed some light on them: - Nerita cassiculum - Central America; - Bulla adamsi - Maldives - Pupa thaanumi, Pilsbury - Maldives As always, any help is much appreciated! > Fred L.J. Vervaet Amsterdam, the Netherlands