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 Huffmanela Moravec, 1987 Generic diagnosis (after Moravec 2001 , and Gibbons 2010 ). Trichosomoididae . Small thread-like nematodes. Stichosome comprises single row of stichocytes. Males: cloaca long, spicule and spicular sheath absent. Posterior end dorso-ventrally depressed, membranous pseudobursa absent. Tail with one pair of ad-cloacal papillae. Female: vulva opens near posterior end of oesophagus. Eggs in uterus, non-embryonated; eggs in host tissue contain larva, strongly pigmented, dark, not translucent, wall often distinctly thick, walls including polar plugs completely covered with clear membrane covered in minute spines or ornamentation. Anus terminal. Parasites in skin, mucosa of gill arches, muscles, swim bladder, serosal cover of elasmobranch and teleost intestine.