Some dorylaimid species from Kahaq area, Maragheh city, East Azarbaijan province

Abstract Dorylaimids contain the most number of nematodes and take part in various aspects of ecosystem. For this reason and for study on dorylaimid fauna, 70 soil samples were collected from the rhizosphere of different vegetations in Kahaq region, Maragheh, East Azarbaijan province during 2014 and 2015. Then sampels were transfered to laboratory. Nematodes were extracted by centrifugal flotation technique and transferred to glycerin according to the modified De Grisse (1969) method. The permanent slides were prepared from the extracted nematodes. The nematodes were identified under light microscope. The morphometric data were taken using a drawing tube attached to the microscope. For identification of nematode speciments, species keys and references were used. As the results, Aulolaimoides elegans, Crassolabium cylindricum, C. rhopalocercum, Diphtherophora tenera, D. communis, Dorylaimoides elegans, D. limophilus, Ischiodorylaimus cognatus, I. paraugandanus, Margollus bokanicus, Mesodorylaimus potus, Metaxonchium persicum, Opisthodorylaimus sylphoides, Oxydirus oxycephaloides, Paravulvus microdontus, Pungentus engadiensis, Syncheilaxonchium nairi, Thornia propinqua, T. parathermophila and Tylenchilaimus minimus were identified. M. potus and the genus Thornia are new records for Iran nematode fauna.