Systematics of the genus Tylolaimophorus de Man, 1880 (Nematoda Diphtherophoridae), with description of T. minor (Thorne, 1939) Goodey, 1963 from Iran Author Ghaderi, Reza Author Asghari, Ramezan Author Eskandari, Ali text Zootaxa 2020 2020-03-24 4755 2 322 340 journal article 10.11646/zootaxa.4755.2.7 c6ae3424-0cb2-4be5-8b64-510468c9b86a 1175-5334 3733635 urn:lsid:zoobank.org:pub:321C36EA-3A65-4C43-80AE-5D2C536D2DF9 Tylolaimophorus corpulentus Eroshenko & Tepljakov, 1977 After Eroshenko & Tepljakov (1977) MEASUREMENTS Holotype female: L = 1.04 mm ; a = 15; b = 8.1; spear = 13 µm ; V = 63. 1 paratype female : L = 1.26 mm ; a = 15; b = 8.7; body width = (80) µm; spear = 13 µm ; pharynx = (145) µm; tail = (38) µm; c = 33; c’ = (1.1); V = 57. 1 paratype male : L = 0.87 mm ; a = 21; b = 6.7; body width = (40) µm; spear = 12 µm ; pharynx = (130) µm; tail = (33) µm; c = 26; c’ = (1.0); spicules = 21 µm ; gubernaculum = 5 µm . DESCRIPTION Female. Slightly swollen at mid-body, narrowing to the anterior and posterior ends. Cuticle thin, with fine transverse striation. Lip region slightly offset. Amphid apertures on the level of the base of lip region. Spear slender, with small basal knobs. Pharynx with an oval basal bulb. Cardia present. Ovaries paired, reflexed. Spermathecae spherical, filled with spermatozoa. Vagina short, strongly sclerotized. Intestine filling a large portion of the tail region. Tail conical, with thickened cuticle on the terminus. Male. Smaller than female. Testes paired, symmetrical. Spicules slightly curved, without a proximal appendage. 12 supplements on the ventral side of the body anterior to the cloaca, and a post-cloacal pair at the mid-tail level. Tail shape as in female. DIAGNOSIS AND RELATIONSHIPS Tylolaimophorus corpulentus is close to T. cavicaudatus but it differs in a more swollen body ( a = 15 vs 25), the presence of the post-rectal sac, and the higher number of supplements in males (12 vs 5). DISTRIBUTION Described from forest soil in Dalnegorsky district of Primorsky , Russia ( Eroshenko & Tepljakov 1977 ).