Ten species of the superfamily Mononchoidea from fourteen populations collected during a survey of terrestrial and freshwater habitats of North India, are described and illustrated. The species include Clarkus papillatus (Bastian, 1865) Jairajpuri, 1970, Prionchulus muscorum (Dujardin, 1845) Wu & Hoeppli, 1929, Mylonchulus contractus Jairajpuri, 1970, M. hawaiiensis (Cassidy, 1931) Andrassy, 19...

Mononchida members are predatory nematodes with the potential to reduce number of plant-parasitic in soil. During a survey on Iran, several populations Mylonchulus were recovered from various localities. A population M. hawaiiensis was studied using 18S rDNA. The phylogenetic analysis Bayesian inference placed sequenced hawiinesis (OP210758) together other Japan (AB361438-AB361442) 1.00 posteri...

During a survey of soil nematodes in Iran, three species of predatory nematodes, including a new species of the genus Mylonchulus Cobb, 1916 were recovered. Mylonchulus kermaniensis sp. n. is characterised by its body length (1.2-1.4 mm), six rows of rasp-like denticles, the sixth line consisting of four denticles, female tail slightly sigmoid, sharply bent ventrad with digitate posterior porti...

Four known and a new species of nematodes belonging to the Order Mononchida Jairajpuri, 1969 are described and illustrated from Silent Valley National Park, India. Cobbonchus vulvastriatus n. sp. has 0.92-0.11 mm long body; buccal cavity 25-27 x 12-13 μm, dorsal tooth comparatively large with its apex at 72-81% from base of stoma; subventral teeth slightly smaller with their apices at 40-41% fr...

A new nematode species in the order Mononchida, Miconchus prokini sp. nov., found Lake El'gygytgyn (Chukotka, Russia) is described and illustrated. The largest member of genus known to date. It morphologically close rex big body size, vulva position females, number precloacal supplements males relative length pharynx both sexes, but it has a longer (L = 7.7–13.1 mm M. vs. L 6.5–7.0 rex) spicule...