3D scan of the calcium carbonate skeleton of a stony coral (*Hydnophora* sp.). The coral is growing on a bivalve shell, showing that corals can grow on many different substrates. This specimen is currently not on display. **Species**: *Hydnophora* sp. **Inventory number**: NHMW-ZOO-EV-0015153 **Origin**: West Indies **Collection**: Natural History Museum Vienna, 3rd Zoological Dept., Evertebrata varia Coll. (curator: Pedro R. Frade) Find out more about the NHMW [here](http://www.nhm.at/en). Scanned & edited by A. Haider (NHMW) Scanner: Artec Space Spider Contribution to the digitization project „Einsichten in die gesellschaftspolitische Dimension des NHMW über die Jahrhunderte von der Prägung des Wissenschafts-Verständnisses bis zum Nationalpark in der Lobau“ funded by the [BMWKMS](https://bmwkms.gv.at/).