Nematodes from the Gulf of California. Part 3. Three new species of the genus Diplopeltoides Gerlach, 1962 (Nematoda: Diplopeltoididae) with overviews of the genera Diplopeltis Gerlach, 1962 and Diplopeltula Gerlach, 1950

摘要

Three new species, Diplopeltoides ахауасtli sp. n., D. santaclarae sp. n. and D. paramastigia sp. n., are described using light microscopy. All three species are morphometrically close to D. mastigia but the former differs in having a hook-shaped amphid, while the latter two can be distinguished from D. mastigia by having a gubernaculum with apophysis, and from each other by having, respectively, a striated cuticle (versus smooth) and a punctated interamphidial shield (versus crenate). The status and composition of Diplopeltoides is discussed and compared with those of Diplopeltis and Diplopeltula. The following species are transferred to different genera: Diplopeltula curta is placed in Pararaeolaimus; Diplopeltis bathmanni is placed in Diplopeltula; Diplopeltula pulcher and D. sundensis are transferred to Diplopeltoides. Three species of Diplopeltula are considered species incertae sedis: D. botula, D. striata and D. lucanica.