CAPILLARIIDAE Railliet, 1915

Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, Zootaxa 4185 (1), pp. 1-274 : 23

Family CAPILLARIIDAE Railliet, 1915

General characteristics (after Moravec 2001). Thread-like nematodes. Cuticle with longitudinal bacillary bands, usually two lateral, one dorsal and one ventral. One sclerotized spicule with smooth or spiny spicular sheath, able to invaginate or evaginate. Posterior end of male with or without small membranous bursa. Vulva near posterior end of oesophagus, sometimes with elevated lips. Eggs usually barrel-shaped with polar plugs, and a smooth or sculptured surface.