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J. P.  Green and Dunn, D. F., ?Chloride and osmotic balance in the euryhaline sipunculid Phascolosoma arcuatum from a Malaysian mangrove swamp _____________________?, Biological Bulletin, vol. 150, pp. 211-221, 1976.

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S. J.  Edmonds, ?Three sipunculan species (two new) from New Zealand?, New Zealand Journal of Marine and Freshwater Research, vol. 10, pp. 217-224, 1976.