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Eudorylaimus kahaqensis sp. n. (Nematoda: Dorylaimida: Qudsianematidae), an interesting new species from Iran



A new species of the genus Eudorylaimus is described from Kahaq region, Maragheh, East Azarbaijan province in Iran. Eudorylaimus kahaqensis sp. n. is characterized by its 1.40–1.75 mm long body, lip region nearly continuous and 17–21 µm wide and bearing a weakly sclerotized but distinct cephalic framework, cheilostom broad and with convex walls, odontostyle 21–23 µm long with aperture occupying 33–44% of its length, presence of a dorsal coelomocyte a short distance behind the nerve ring, neck 347–397 µm long, DN rather posterior (66–70%), pharyngeal expansion 162–205 µm or occupying 45–53% of total neck length, presence a dorsal cell mass at level of pharyngo-intestinal junction, V = 48–52, caudal region conical elongate (50–73 µm, c = 24–30, c’ = 1.9–2.6 in females; 45–68 µm, c = 22–32, c’ = 1.7–2.3 in males) and regularly curved ventrad with large hyaline portion, spicules 48–55 µm long and 7–9 irregularly spaced ventromedian supplements lacking hiatus.



Nematoda, Description, dorylaims, morphology, SEM, soil nematodes, taxonomy

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Abolafia, J. & Peña-Santiago, R. (2005) Nematodes of the order Rhabditida from Andalucía Oriental: Pseudacrobeles elongatus (de Man, 1880) comb. n. Nematology, 7, 917–926.

Ahmad, W., Imran, Z. & Araki, M. (2016) Epidorylaimus monhystera sp. n., an atypical species of the genus Epidorylaimus Andrássy, 1986 (Dorylaimida: Qudsianematidae) from Japan. Zootaxa, 4072 (1), 90–100.

Andrássy, I. (1957) Dorylaimus rugosus n. sp., ein neuer Nematode aus Ungarn. Nematologischen Notizen 7. Opuscula Zoologica Instituti Zoosystematici Universitatis Budapestinensis, 2, 9–11.

Andrássy, I. (1959) Taxonomische Übersicht der Dorylaimen (Nematoda). I. Acta Zoologica Universitatis Budapestinensis, 5, 191–240.

Andrássy, I. (1986) The genus Eudorylaimus Andrássy, 1959 and the present status of its species (Nematoda: Qudsianematidae). Opuscula Zoologica Budapestinensis, 22, 1–42.

Andrássy, I. (1991) The superfamily Dorylaimoidea (Nematoda)—a review. Family Qudsianematidae, II. Opuscula Zoologica Budapestinensis, 24, 3–55.

Andrássy, I. (2008) Eudorylaimus species (Nematoda: Dorylaimida) of continental Antarctica. Journal of Nematode Morphology and Systematics, 11, 49–66.

Andrássy, I. (2009) Free-living nematodes of Hungary. III. Pedozoologica Hungarica nº 5. Hungarian Natural History Museum. Budapest, Hungary, 608 pp.

De Grisse, A.T. (1969) Redescription ou modification de quelques techniques utilisées dans l΄étude des nématodes phytoparasitaires. Mededelingen Rijksfaculteit Landbouwwetenschappen, Gent, 34, 351–369.

de Man, J.G. (1880) Die einheimischen, frei in der reinen Erde und im süssen Wasser lebenden Nematoden. Tijdschrift Nederlandsche dierkundige Vereeniging, 5, 1–104.

Heyns, J. (1993) Eudorylaimus nudicaudatus sp. n. from Antarctica (Nematoda: Dorylaimoidea). South African Journal of Antarctic Research, 23, 33–36.

Jenkins, W.R. (1964) A rapid centrifugal-flotation method for separating nematodes from soil. Plant Disease Reporter, 48, 692.

Khan, Z. & Araki, M. (2000) Eudorylaimus unicus sp. n., E. japonicus sp. n. and E. fransus Heyns, (Nematoda: Qudsianematidae) from Tsukuba, Japan. International Journal of Nematology, 10, 135–142.

Moslehi, S., Niknam, G. & Ashrafi, M. (2012) One new and four known species of the genus Eudorylaimus Andrássy, 1959 (Dorylaimida: Qudsianematidae) from Iran. International Journal of Nematology, 22, 30–40.

Quijano, R., Peña-Santiago, R. & Jiménez-Guirado, D. (1991) Three new species of the genus Allodorylaimus Andrássy, 1986 (Nematoda: Dorylaimida) from Spain. Afro-Asian Journal of Nematology, 1, 161–173.

Thorne, G. (1929) Nematodes from the Summit of Long's peak. Transactions of the American Microscopic Society, 48, 181–195.

Thorne, G. (1939) A monograph of the nematodes of the superfamily Dorylaimoidea. Capita Zoologica, 8, 1–261.

Tjepkema, J.P., Ferris, V.R. & Ferris, J.M. (1971) Review of the genus Aporcelaimellus Heyns, 1965 and six species groups of the genus Eudorylaimus Andrássy, 1959 (Nematoda: Dorylaimida). Purdue University Agriculture Experimental Station Research Bulletin, 882, 52 pp.

Zell, H. (1986) Nematoden eines Buchenealbodens. 6. Die Dorylaimen (Nematoda: Dorylaimida). Carolinea, 44, 91–118.



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