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