In a survey, several soil samples were collected from the rhizosphere of various plants of the Karvanagh region, East-Azerbaijan province during 2016-2017. Nematodes were extracted using common nematological methods and fixed and transferred to pure glycerin according to De Grisse method. Permanent microscopic slides were prepared from the nematodes. Based on morphological and morphometrical characters and comparison the data with available literature, among different species identified, Aporcelinus granuliferus (Cobb, 1983) Andrassy, 2009 and Epidorylaimus humilis (Thorne and Swanger, 1936) Andrassy, 1959 were also found. These two species are considered as first records for Iran nematode fauna. Aporcelinus granuliferus could be distinguished by having a simple uterus, convex-conoid tail with concave end and finely rounded tip, lacking hyaline region in tail and males with 11 ventromedial supplements. The species is different from A. africanus by its broader lip region (17-19 vs 13.5 µm) and rounded tip of the tail (vs pointed tip of the tail) and is separated from A. seychellensis with longer body length (1.5-1.9 vs 0.9-1.1 mm), more c value (28-42 vs 25-29) and tail end lacking a hyaline region (vs presence of a distinct hyaline region). Aporcelinus granuliferus is also distinguished from A. yucatanensis by longer body length (1.5-1.9 vs 1 mm), less c΄ value (0.9-1.4 vs 1.5-2) and tail end lacking a hyaline region (vs presence of a distinct hyaline region). The determinative characteristics of E. humilis are as females having amphidelphic genital system and a rather long-conoid tail that is ventrally curved with a pointed tip. This species differs from E. leptosome by having less a value (21-32 vs 40-63), less c value (10-14 vs 17-23) and tail gradually narrowing ( vs tail with nearly cylindrical posterior part) and is distinguishable from E. angulosus with shorter body length ( 0.9-1.1 vs 1.1-1.6 mm), less b value (3.4-3.9 vs 4-4.8).