Nicholas 2004. Oxyonchus longisetosus n. sp. Oxyonchus evelynae n. sp. and Oxyonchus culcitatus Wieser, 1959 (Thoracostomopsidae: Enoplida: Nematoda) from Australian ocean beaches, together with observations on the variability of taxonomic characters and a key to species of the genus Oxyonchus. Hydrobiologia, 511, 1 January 2004: 47-64