. Fig. 97. Charts showing the distribution of Limacina helicina at stations in the 1926-7 surveys. The squares represent the numbers taken in three N 100 H nets each towed for one mile at approximately 5, 60 and 120 m. depth respectively. For hydrological and phytoplankton conditions see Figs. 2, 6, 7, 8, 38, 39 and 41.

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