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Description and molecular characterisation of two new species of Dorylaimidae (Dorylaimida: Nematoda) from Iran, with a compendium of all the nominal species of Dorylaimus Dujardin, 1845

In: Nematology
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  • 1 1Department of Biological, Geological and Environmental Sciences, University of Catania, via Androne 81, 95124 Catania, Italy
  • | 2 2Department of Plant Protection, Faculty of Agriculture, University of Zanjan, 45371-38791 Zanjan, Iran
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Two new species of Dorylaimidae from Iran are described using morphology and molecular data. Dorylaimus elegans sp. n. is characterised by 4.41-5.92 mm body length, lip region truncate, distinct from adjoining body by a depression, cuticle with 50-55 longitudinal ridges, odontostyle 42-51 μm long, thicker than cuticle at its level, didelphic female reproductive apparatus, vulva a small sub-equatorial pore, a variable number of advulval papillae (0-6), both pre- and post-vulval, present in most specimens, female tail elongate, 5.6-7.6 anal body diam. long, with ventrally hooked terminus. Male with 26-30 ventromedian supplements arranged very close to each other, copulatory hump weakly developed, and a convex-conoid tail with blunt terminus. Prodorylaimus reyesi sp. n. is characterised by 2.78-3.33 mm body length, lip region slightly angular and well set off from adjoining body by a depression, odontostyle 26-31 μm long, thicker than cuticle at its level, didelphic female reproductive apparatus, vulva longitudinal, a variable number of advulval papillae (0-3), both pre- and post-vulval, present in most specimens, tail in both sexes convex-conoid in its anterior part, then narrowing abruptly to a filiform hyaline appendix, longer in female (c′ = 11.7-15.5) than in male (c′ = 7-7.7), and 19-21 contiguous ventromedian supplements. A compendium of the main morphometric characters of Dorylaimus and a key to species are also provided.

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