Data on Some Species of the Genus Coslenchus Siddiqi, 1978 (Rhabditida, Tylenchidae) from Iran

Data on five known species of the genus Coslenchus are provided. Morphological and morphometric data are given for all studied species. Three of the recovered species were also characterized by molecular phylogenetic data. The species C. leiocephalus was studied for the first time since its original description. Males of the species, C. franklinae and C. oligogyrus were described for the first time and the species C. oligogyrus was reported from Iran for the first time. In molecular phylogenetic studies based on partial sequences of 28S rDNA D2/D3 fragments, all species formed a clade with high Bayesian posterior probability in Bayesian inference, indicating the monophyly of the genus. The clade of Coslenchus spp. formed a highly supported monophyletic group, a sister clade to two species of the genus Aglenchus

Two rare species of tylenchids, Discotylenchus biannulatus n. sp. and Labrys chinensis Qing & Bert, 2018 (Nematoda: Tylenchidae) from western Iran

Konani, Ehsan, Panahandeh, Yousef, Pourjam, Ebrahim, Álvarez-Ortega, Sergio, Pedram, Majid (2018): Two rare species of tylenchids, Discotylenchus biannulatus n. sp. and Labrys chinensis Qing & Bert, 2018 (Nematoda: Tylenchidae) from western Iran. Zootaxa 4413 (2): 260-270, DOI: https://doi.org/10.11646/zootaxa.4413.2.

An aberrant nematode, Baldwinema n. gen. (Nematoda: Panagrolaimomorpha: Panagrolaimidae), from Iran with description of three new species

A new genus of Panagrolaimidae, together with three new species, is proposed based on morphological, morphometric and molecular studies. Baldwinema n. gen. is unique in the Tylenchina by a combination of the following characters: having valvular median bulb, no valve in terminal pharyngeal bulb and absence of stylet. It is further characterised by cylindrical body, thin and finely annulated cuticle, lateral field with two lines (forming a single plain band), fused lips, small longitudinal amphidial openings located on lateral lips, lip region without labial probolae, with six inner and six outer labial and four cephalic papillae (as seen using SEM images), stoma aberrant, cheilostom and gymnostom of equal length, cheilostom with thin wall, gymnostom with clear and thick wall, and stegostom beginning with a tubular thin wall and ending with a thicker wall. Baldwinema ilamense n. gen., n. sp., the type, is characterised by its short post-vulval uterine sac of 7.7 (6.0-9.0) μm long, female tail length of 147 (120-175) μm, shape of gubernaculum, and arrangement of male genital papillae; B. ardabilense n. gen., n. sp. by its short post-vulval uterine sac of 11.5 (9.0-15.0) μm, female tail length of 150 (136-169) μm, shape of gubernaculum, and arrangement of male genital papillae; and B. golestanense n. gen., n. sp. by its long post-vulval uterine sac of 16 (13-21) μm, female tail length of 200 (174-220) μm, shape of gubernaculum, and arrangement of male genital papillae. Phylogenetic analyses based on sequences of the small subunit (SSU) ribosomal RNA gene showed that the new genus is nested within the Panagrolaimidae. However, LSU data did not demonstrate monophyly of the Panagrolaimidae

Labrys khuzestanensis n. sp. (Nematoda, Tylenchidae), a new member of the genus with large labial plate

Panahandeh, Yousef, Pourjam, Ebrahim, Abolafia, Joaquín, Roshan-Bakhsh, Ali, Mojerlou, Shideh, Afshar, Farahnaz Jahanshahi, Pedram, Majid (2019): Labrys khuzestanensis n. sp. (Nematoda, Tylenchidae), a new member of the genus with large labial plate. Zootaxa 4671 (2): 267-276, DOI: https://doi.org/10.11646/zootaxa.4671.2.