| Cutler, E.B., 1982. Pogonophora. In S.P. Parker (ed.), Syn. Classif. Liv. Org. 2: 63-64. 
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		| Cutler, E.B., 2009. Phylum Sipuncula - peanut worms. New Zealand Inventory of Biodiversity 1. Canterbury University Press: 302-307. 
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		| Cutler, E.B., 2009. Phylum Echiura - spoon worms. New Zealand Inventory of Biodiversity 1. Canterbury University Press: 308-311. 
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