Lophelia pertusa colony sample POS455-C1W originates from Sula reef, off Norway, where it was taken with the submersible Jago during Poseidon cruise POS455 (white colourmorph). This dataset contains a spreadsheet containing the (directed) edges of the colony skeleton graph based on the calices segmentation dataset in https://doi.org/10.1594/PANGAEA.947276. Each label in POS455-C1W-calcies dataset represents a vertex in this graph. The edges are given by their start label Node ID #1 and the label of their target Node ID #2.