London: Her Majesty's Stationery Office, 1883. In 'Report of the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-1876' prepared under the Superintendence of C. Wyville THOMSON & John MURRAY. Zoology Volume VII, Part XVIII, pp. 1-244 plus 19 tinted lithographs. Based on a large collection of penguins obtained during the cruise. Also in this volume are illustrated reports on Pelagic Hemiptera, Hydoida, and Orbitolites. Original green cloth, shelf wear and bumped corners.