Guide to the Parasites of Fishes of Canada Part V: Nematoda Author Arai, Hisao P. Author Smith, John W. text Zootaxa 2016 4185 1 1 274 journal article 10.11646/zootaxa.4185.1.1 11620862-ddcf-4c01-b0d9-32867e03d74b 1175-5326 165530 0D054EDD-9CDC-4D16-A8B2-F1EBBDAD6E09 Key to Subfamilies of ANISAKIDAE 1 Excretory system ribbon-like, extending from left lateral chord into ventral part of body-cavity; excretory pore usually between subventral lips or at base of ventral interlabium; parasitic in mammals, birds, reptiles or elasmobranch fishes; larval stages in invertebrates and vertebrates, including fishes............................................... Anisakinae - Excretory system not ribbon-like; excretory pore usually near nerve ring; parasitic in fishes, occasionally birds.................................................................................................. Raphidascaridinae