Anguillicola novaezelandiae Anguillicoloides novaezelandiae[1] is a parasitic nematode worm that lives in the swimbladders of eels (Anguilla spp.

), particularly Anguilla australiensis, Anguilla anguilla and Anguilla dieffenbachii.

Specimens have been located in Italy (where it is thought to have been introduced[2]) and New Zealand (where it is a native species[3]).