Archive image from page 499 of The depths of the ocean;. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic depthsofoceange00murr Year: 1912 462 DEPTHS OF THE OCEAN CHAP. the water in more rapid motion, and so bring nourishment to their mouths inside their shells, but when exposed at ebb-tide the shells are closed and the animals remain concealed within them. Immediately below the barnacle- belt we frequently find a belt consist- ing of dense masses of mussels {
Archive image from page 499 of The depths of the ocean;. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic depthsofoceange00murr Year: 1912 462 DEPTHS OF THE OCEAN CHAP. the water in more rapid motion, and so bring nourishment to their mouths inside their shells, but when exposed at ebb-tide the shells are closed and the animals remain concealed within them. Immediately below the barnacle- belt we frequently find a belt consist- ing of dense masses of mussels {Mytilus edulis, see Fig. 316), though the individ- uals in such locali- ties never attain any considerable size. On the rocks we find everywhere four species of gasteropods, which are very characteristic of this area, namely, the limpet [Patella vulgata, see Fig. 317), two periwinkles {Littorina Fig. 316. Mytilus edulis, L.
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