PLATE XLII. 



FIG. 



HALECIUM HALECINUM, p. 221. 



a. a'. Nat. size. From drawings by Mr. T. West. 



b. A portion, magnified, showing the polypites. 



c. Capsules with male gonophores. 



d. Capsules with female gonophores. From drawings by 



the Author. 



