XIPHINEMA GERSONI SP-N (NEMATODA, LONGIDORIDAE) FROM PORTUGAL

The authors give a description of Xiphinema gersoni sp. n. It was found in the rhizosphere of Lolium sp. at Herdade da Daroeira, Odemira, Portugal. X. gersoni sp. n. is characterized by two equally developed female genital branches, vulva slightly anterior to mid-body, a well developed pseudo-Z-organ, small spine-like structures in the uterus, tail short conical with digitate terminus and presence of male. The new species is similar to X. aequum Roca & Lamberti, 1988, X. belmontense Roca and Pereira, 1991, X. coxi europaeum Sturhan, 1985, X. dissimile Roca, Pereira and Lamberti, 1988, X. diversum Roca, Lamberti, Santos & Abrantes, 1989, X. lusitanicum Sturhan, 1983 and X. pseudocoxi Sturhan, 1985.