Citation: G. Poinar et Am. Brockerhoff, Nectonema zealandica n. sp (Nematomorpha : Nectonematoidea) parasitising the purple rock crab Hemigrapsus edwardsi (Brachyura : Decapoda) in New Zealand, with notes on the prevalence of infection and host defence reactions, SYST PARAS, 50(2), 2001, pp. 149-157