Abstract
IF a living lugworm is put on the surface of wet sand or mud, it curves its head downwards and burrows in. During the burrowing act (which was described in detail by Just1), the proboscis is extruded and withdrawn, wave-movements of a characteristic kind travel forwards along the body, and the notopodia are directed backwards.
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References
Just, B., Z. vergl. Physiol., 2, 155 (1925).
Stannius, H., Muller's Arch., 352 (1840).
Ashworth, J. H., "Arenicola", L.M.B.C. Memoirs, XI (1904).
Thamdrup, H. M., Medd. Komm. Havundersøg., Kbh., 10, 2 (1935).
Ledingham, I. C., and Wells, G. P., Nature, 150, 121 (1942).
Wells, G. P., J. Exp. Biol., 14, 117 (1937).
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WELLS, G. Mechanism of Burrowing in Arenicola marina L.. Nature 154, 396 (1944). https://doi.org/10.1038/154396a0
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DOI: https://doi.org/10.1038/154396a0
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