The genus Paradorylaimus Andr�ssy, 1969 (Dorylaimoidea: Nematoda)

Abstract

Examination of the type specimens of Dorylaimus parafecundus De Coninck, 1935 showed that the cuticle lacks longitudinal ridges. The species is a typical Laimydorus and is herewith redesignated L. parafecundus (De Coninck, 1935) n.comb. As it is the type species of Paradorylaimus Andrassy, 1969, the latter generic name falls as a synonym of Laimydorus Siddiqi, 1969 which has priority of publication. The three other species included originally in Paradorylaimus are dealt with as follows: P. wilhelmschneideri (Andrassy, 1959) is considered incertae sedis; P. heterurus (Schuurmans Stekhoven & Teunissen, 1938) was shown by Mulk et al. (1978) to belong in the genus Roqueus Thorne, 1964; P. filiformis (Bastian, 1865) is herewith returned to Laimydorus. Dorylaimus tenuistriatus Schneider, 1935 is not identical with L. parafecundus: it is more slender; odontostyle, pharynx and spicules are shorter; supplement number is lower; shape of vulva and the arrangement of the pharyngeal gland nuclei are different. The species is transferred to Laimydorus, becoming L. tenuistriatus (Schneider, 1935) n.comb. Lectotypes are designated for L. parafecundus and L. tenuistriatus. Among the material of L. tenuistriatus are specimens of L. pseudostagnalis (Micoletzky, 1927) and L. sp.