Begins: "Numerous specimens of Lophohelia prolifera were dredged at a depth of 220 fathoms, fifty miles off Bolus Head, county Kerry, during the Society's Fishery Survey. Most of these are infested by the tubes of Eunice philocorallia, Buch. Miss Buchanan refers (p. 174) to the commensalism of the worm with the coral, and states that the worm to some extent modifies the growth of the coral, the coral growing round the worm-tube which thus becomes embodied in the coenenchyme. Although Miss Buchanan describes the tubes as having a " parchment-like consistency, with jagged lateral openings," she does not allude to the branched character of the tube, nor does this appear in her plate xi. I have therefore thought it advisable to draw attention to this character, and to figure a specimen (p. 334) which exhibits it in a fairly satisfactory manner."