Diplopeltidae Filipjev 1918

• Main Author: Holovachov, Oleksandr
• Format: Text
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Chromadorea; Araeolaimida; Diplopeltidae; Barents Sea; White Sea; New Zealand
• Online Access: https://dx.doi.org/10.5281/zenodo.3853258; https://zenodo.org/record/3853258

Key to genera of Diplopeltidae See Table 4 for additional diagnostic characters. 1. Amphidial fovea a transverse slit; cuticle with ten longitudinal ridges.... Edalonema Andrássy, 2007 – Amphidial fovea double-loop-shaped in male, unispiral in female.................. Belgopeltula gen. nov. – Amphidial fovea unispiral................................................................................................................ 2 – Amphidial fovea loop-shaped........................................................................................................... 4 2. Basal bulb absent; freshwater or terrestrial........................................ Cylindrolaimus de Man, 1880 – Basal bulb present; marine................................................................................................................ 3 3. Single anterior ovary................................................................ Intasia Tchesunov & Miljutina, 2008 – Two ovaries (anterior and posterior)....................................................... Southerniella Allgén, 1932 4. Oral opening shifted to the ventral body side............................ Morlaxia Vincx & Gourbault, 1988 – Oral opening apical or shifted to the dorsal body side..................................................................... 5 5. Basal pharyngeal bulb present; ovaries antidromously reflexed............... Mudwigglus Leduc, 2013 – Basal pharyngeal bulb absent; ovaries outstretched......................................................................... 6 6. Lateral alae present, in some species fused with the ventral limb of the amphid.................................................................................................................................................. Campylaimus Cobb, 1920 – Lateral alae absent............................................................................................................................ 7 7. Amphid in a shape of rounded loop.................................................................................................. 8 – Amphid in a shape of elongated loop............................................................................................. 10 8. Anterior body region abruptly narrowing; amphid at a distance equal to more than five labial region diameters from the anterior end............................................. Metaraeolaimoides De Coninck, 1936 – Anterior body region cylindrical or subcylindrical; amphid at a distance equal to less than two labial region diameters from the anterior end............................................................................................. 9 9. Buccal cavity cup-shaped; pronounced sexual dimorphism in the amphid size (large in males and small in females).................................................................................. Pararaeolaimus Timm, 1961 – Buccal cavity conical; no sexual dimorphism in the amphid size.......... Araeolaimus de Man, 1888 10. Cervical (paramphideal) setae absent; caudal glands open via three separate pores........................................................................................................................................... Diplopeltula Gerlach, 1950 – Cervical (paramphideal) setae present; caudal glands open via common spinneret........................11 11. Amphid located on a well-developed refractive subcuticular plate.............................................................................................................................................. Diplopeltis Cobb in Stiles & Hassal, 1905 – Refractive subcuticular plate absent.......................................... Pseudaraeolaimus Chitwood, 1951 : Published as part of Holovachov, Oleksandr, 2017, Belgopeltula belgica (Vincx & Gourbault, 1992) gen. et comb. nov. and Mudwigglus micramphidium sp. nov. from the west coast of Sweden, and reappraisal of the genus Pseudaraeolaimus Chitwood, 1951 (Nematoda: Araeolaimida: Diplopeltidae), pp. 1-21 in European Journal of Taxonomy 383 on pages 17-19, DOI: 10.5852/ejt.2017.383, http://zenodo.org/record/3839807 : {"references": ["Tchesunov A. V. & Miljutina M. A. 2008. A new free-living nematode Intasia monohystera gen. n., sp. n. (Nematoda, Araeolaimida, Diplopeltidae) from the Barents Sea and the White Sea, with a key to genera of Diplopeltidae. Russian Journal of Nematology 16: 33 - 48.", "Allgen C. 1932. Weitere Beitrage zur Kenntnis der marinen Nematodenfauna der Campbell-insel. Nyt Magazin for Naturvidenskaberne 70: 97 - 198.", "Leduc D. 2013. Mudwigglus gen. n. (Nematoda: Diplopeltidae) from the continental slope of New Zealand, with description of three new species and notes on their distribution. Zootaxa 3682: 351 - 370. https: // doi. org / 10.11646 / zootaxa. 3682.2.8", "Cobb N. A. 1920. One hundred new nemas. (Type species of 100 new genera). Contributions to a Science of Nematology 9: 217 - 343.", "Timm R. W. 1961. The marine nematodes of the Bay of Bengal. Proceedings of the Pakistan Academy of Sciences 1: 1 - 88.", "Gerlach S. A. 1950. Die Diplopeltiden, eine Gruppe freilebender Nematoden. Kieler Meeresforschungen 7: 138 - 156."]}