PLANKTON OF THE WOODS HOLE REGION 179 
THomeson, MiLuetTtT T. 
1899. The breeding of animals at Woods Hole during the month of September, 1898. 
Science, New Series, Vol. IX, No. 225, April 21, pp. 581-583. New York. 
1904. The metamorphoses of the hermit crab. Proceedings, Boston Society of Natural 
History, Vol. XX XI, 1904, pp. 147-209, pls. 1-10. Boston. 
VANHOFFEN, ERNST. 
1897. Die Fauna und Flora Gronlands. Erster Teil, Grénland-Expedition der Gesellschaft 
fir Erdkunde zu Berlin, Band II, 1897, pp. 1-383, pls. 1-8. Berlin. 
VERRILL, A. E. 
1873. Report upon the invertebrate animals of Vineyard Sound and the adjacent waters, 
with an account of the physical characters of the region. Report, United States 
Commissioner of Fish and Fisheries, 1871-72 (1873), pp. 295-778, pls. Wash- 
ington. 
1923. Crustacea of Bermuda. Schizopoda, Cumacea, Stomatopoda, and Phyllocarida. 
Transactions, Connecticut Academy of Arts and Sciences, Vol. 26, October 1923, 
pp. 183-211, Pls. XLIX-LVI. New Haven. 
WHEELER, WitLiam Morton. 
1901. The free-swimming copepods of the Woods Hole region. Bulletin, United States 
Fish Commission, Vol. XIX, 1899 (1901), pp. 157-192, figs. 1-30. Washington. 
Weicut, Ramsey. 
1907. The plankton of eastern Nova Scotia waters. An account of: floating organisms 
upon which young food-fishes mainly subsist. Contributions to Canadian Biology, 
1902-05 (1907). Thirty-ninth Annual Report, Department of Marine and Fish- 
eries, Fisheries Branch, pp. 1-19, Pls. I-VII. Ottawa. 
ZIMMER, CARL. 
1909. VI. Die nordischen Schizopoden. Jn Nordisches Plankton, herausgegeben von Prof. 
Dr. K. Brandt und Prof. Dr. Apstein in Kiel. Zwélfte Lieferung, 1909, pp. 1-178, 
figs. 1-384. Kiel und Leipzig. 
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