Memoir VI. Lepeophtheirus and Lernaea (Parasitic Copepoda). By _A.
Scott_. 1901.
Memoir XII. Gammarus (Amphipod). By _M. Cussans_. 1904.
Memoir XIV. Ligia (Isopod). By _C. G. Hewitt_. 1907.
Memoir XVI. Cancer (Edible Crab). By _J. Pearson_. 1908.
Descriptions of all the British species of Barnacles will be found in _Darwin"s_ "Monograph of the Sub-cla.s.s Cirripedia." (Ray Society.) 2 vols. London, 1851-1854.