A new and four known species of Diphtherophora (Nematoda: Diphtherophoridae) from Iran, with a diagnostic compendium of its species Author Ghaderi, Reza Author Kashi, Leila Author Karani, Hossein Mirbabaei Author Karegar, Akbar text Zootaxa 2017 2017-12-19 4365 3 311 330 journal article 26764 10.11646/zootaxa.4365.3.3 cd4e80ba-060e-4df4-8fea-6a56fd765c5b 1175-5326 3094941 A7130F59-3476-4B16-A5F5-83DEB1D263E1 Diphtherophora sp. ( Figs 6 D ; 7 B, H ; 8 C, D ; 9 C, D ) Measurements. See Table 3 . The morphological and morphometric characters of our population fit with those of the original description of D. malkovi ( Nedelchev & Choleva, 1989 ) , but the secretory-excretory pore position is more posterior in females (90–109 vs 59–80 µm ) and males (94.5 vs 62–75 µm ), the body is more obese ( a = 12.8 vs 17–27) and the spicules are slightly smaller (26 vs 27–32 µm ). It also similar to D. kazachstani , D. sachalinensis Eroshenko & Tepljakov, 1977 , D. bulgarica Katalan-Gateva & Aleksiev, 1988 and D. obesa . It differs from these four species in having two ventromedian precloacal supplements and two cervical papillae in males ( D. kazachstani and D. bulgarica without supplements, D. sachalinensis and D. obesa with one supplement; all without cervical papillae). It also differs from all except D. bulgarica , in having a non-digitate tail in females and males. The two females and single male of this population were collected from weeds around oak trees in Langrud, Gilan province , northern Iran . Complete identification was not possible due to the low number of specimens and having no significant morphological differences from known species.