The echinoderm collection made during the Bangor-Watamu Expedition is documented. For many of the 107 species recorded, notes are given on habitat, appearance in life and biotic relations. Most of the collection was made in the Watamu Marine Park, Kenya and smaller collections made at several locations between Lamu and Zanzibar. The species distribution is tabulated according to habitat and abundance. Full systematic and biological references are omitted as they have been fully referenced in several recent works.