Mr. Bourne has been good enough to submit to me most of the interesting specimens of Echinoderms which he obtained during his short stay on board H.M.S. “Research.” Coming so soon after the important collection made by the Rev. W. S. Green in neighbouring waters and at greater depths, it will, I think, suffice for me to treat this collection as an appendix to that, and to refer for a general discussion of such points as appeared worth noting to my report in the Annals and Magazine of Natural History for December last.