A crate of long undisturbed historical collections has provided this specimen with no data or provenance or identification. We are at a loss as to what it is and would appreciate any thoughts on the specimen. It is not calcareous. Dr Matthew A Parkes National Museum of Ireland - Natural History Merrion Street, Dublin 2, Ireland Email: [log in to unmask]<mailto:[log in to unmask]> Telephone: +353 (0)87 122 1967 or 01-6307006 Taispeántas nua - Dearbhú na Poblachta: Éirí Amach 1916 New exhibition - Proclaiming a Republic: The 1916 Rising http://www.museum.ie/1916/