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Noun1.Sipuncula - peanut worms
animal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animals
peanut worm, sipunculid - small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut
phylum - (biology) the major taxonomic group of animals and plants; contains classes
References in periodicals archive ?
Similar granules, containing enzymes implicated in bacterial killing or in intracellular digestion, have also been described in the coelomic granulocytes of a different sipunculid worm (Dybas, 1981a, b) and in tunicate hemocytes (Sawada et al.
1967b): Report on the sipunculid worms from the sublittoral zone of Cuba and the Gulf of Mexico.