دو گونه جدید از جنس Andrássy, 1991 Talanema از جنگل‌های ارسباران

The genus Talanema characterized by body length of 0.9 to 1.8 mm, smooth cuticle, offset lip region, odontostyle length equivalent to width of the head region. Females with two genital systems, with sclerotized vulval lips. In male nematodes, ventromedian supplements are many in number (15-27), with very close distances to each other, tail short and rounded with a subdigitate terminus. This genus is distinguished from genus Labronema by having a transverse vulval slit and from genus Crassolabium by a more number of supplements. During the study of dorylaim species diversity in Arasbaran forests-East Azarbaijan, during 2015-2016, after sampling, extraction, fixation and preparation of permanent slides, which were followed using nematology teqniques and identification performed based on related valid literature. Among with other species, two undescribed species of Talanema were also identified, which according to available information are different from all the eight already reported species of this genus. The species T. nicaraguense and T. pygmaeum have no digitated tail end and are easily distinguished from other species in the genus. Body length (less than 1 mm) is the main character that separates T. avoli and T. salinae from other members of the genus. The four remaining species of Talanema have less than 30 µm tail length whereas in understudy Iranian two populations is more than 30µm and the tail shape in both population is different, too. The two new species are also differentiated from each other by the position of the vulva, its shape and characters and length of the esophagus.