REVISION OF THE HOPLOLAIMINAE (NEMATODA) V. ROTYLENCHUS FILIPJEV, 19361) BY S. A. SHER Department of Nematology, University of California, Riverside, California, U.S.A. The genus Rotylenchus Filipjev, 1936 is diagnosed. Rotylenchus robustus (de Man, 1876) Filipjev, 1936 [Syn. Rotylenchus uniformis (Thorne, 1949) Loof & Oostenbrink, 1958] is considered the type species. Seven nominal species are redescribed, six new species and one nomen novum are proposed. Filipjev (1934), in proposing the genus Rotylenchu.r, listed only the type species Tylenchus robu??tu.r de Man, 1880, and Rotylenchu.r Filipjev, 1934, was therefore considered a nomen nudum under the International Code of Zoological Nomenclature (Loof & Oostenbrink, 1958). In 1936, Filipjev published two papers (Filipjev, 1936a in July, 1936, and Filipjev 1936b in October, 1936 2) both giving a diagnosis of Rotylenchu.r, type species and illustration. Rotylenchus Filipjev, 1936 was therefore established. Filipjev & Schuurmans Stekhoven (1941) expanded the generic diagnosis and included ten nominal species in the genus. All of these species, except the type, have now been excluded from this genus and reside in six different genera (Baker, 1962). Steiner (1945) proposed the genus Helicotylenchu.r to include forms with over- lapping esophageal glands as he considered de Man's R. robustus to have
Nematologica – Brill
Published: Jan 1, 1965
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