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 Daniconema Moravec & Køie, 1987 Generic diagnosis (after Moravec 2013). Daniconematidae . Body thread-like, head bluntly rounded, with pair of large dome-shaped forwardly directed papillae (cephalic elevations); there are also eight external paired papillae (two ventro-ventral, two latero-ventral, two dorso-lateral, two dorso-dorsal) and pair of lateral amphids ( Fig. 27 A). Buccal capsule absent. Oesophagus muscular. Oesophageal gland highly developed, very long, extending posteriorly along intestine. Nerve ring encircling oesophagus in its anterior half, with excretory pore slightly below nerve ring level. Male tail long, lacking caudal alae; four pairs pre-cloacal and five pairs post-cloacal papillae. Spicules, gubernaculum or sclerotized copulatory plate absent; common cloacal duct opening on lobular genital projection. Female with functional anus. Female tail conical with rounded tip. Most of female body filled with uterus containing larvae. Vulva in anterior part of body. Monodelphic. Viviparous. Parasites of eels. Type and apparently only species D. anguillae Moravec & Køie, 1987 .