Diplopeltoides , Gerlach 1962

• Main Authors: Holovachov, Oleksandr, Boström, Sven
• Format: Text
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Chromadorea; Araeolaimida; Axonolaimidae; Diplopeltoides; Norwegian Sea; Sven; Ocampo
• Online Access: https://dx.doi.org/10.5281/zenodo.3852344; https://zenodo.org/record/3852344

Key to species of Diplopeltoides See Table 7 for additional diagnostic characters. 1. Body shorter than 0.7 mm; testes opposed...................................................................................... 2 – Body longer than 0.8 mm; testes outstretched................................................................................. 4 2. Cuticularised plate present; annulation starts at the posterior ¼ th of amphid.................................. 3 – Cuticularised plate absent; annulation starts at the anterior ¼ th of amphid................................................................................................................... D. pumilus (Vincx & Gourbault, 1992) comb. nov. 3. Spicules 22 µm long; gubernaculum triangular...................................... D. ornatus (Gerlach, 1950) – Spicules 29–36 µm long; gubernaculum plate-like........................................ D. linkei Jensen, 1991 4. Cuticlar annules with londitudinal striation distinctly visible under the light microscope............. 5 – Cuticular annules visually smooth under light microscope, longitudinal striation may be visible under scanning electron microscope................................................................................................ 9 5. Cuticularised plate present............................................................................................................... 6 – Cuticularised plate absent................................................................................................................ 7 6. Amphid hook-shaped....................................................................................................................................... D. axayacatli Holovachov, Tandingan De Ley, Mundo-Ocampo, Gingold & De Ley, 2009 – Amphid an inverted U-shaped............................................................................. D. grandis sp. nov. 7. Interamphideal shield crenate........................................................................................................................ D. santaclarae Holovachov, Tandingan De Ley, Mundo-Ocampo, Gingold & De Ley, 2009 – Interamphideal shield smooth.......................................................................................................... 8 8. Body 1.7 mm long; spicules 17 µm long............................. D. striatus (Gerlach, 1956) comb. nov. – Body 1.0– 1.2 mm long; spicules 25 µm long...................... D. pulcher (Vincx & Gourbault, 1992) 9. Amphidial fovea with fine transverse striation................... D. bulbosus (Vitiello, 1972) comb. nov. – Amphidial fovea without fine transverse striation......................................................................... 10 10. Cuticular plate present.................................................................................................................... 11 – Cuticular plate absent.................................................................................................................... 12 11. Cephalic setae 4–6 µm long; amphid 14–21 µm long; precloacal ridge absent............................................................................................................................................................. D. suecicus sp. nov. – Cephalic setae 13 µm long; amphid 6 µm long; precloacal ridge present............................................................................................................................................................. D. longicaudatus sp. nov. 12. Amphid with wide interamphideal area......................................................................................... 13 – Amphid with narrow interamphideal area..................................................................................... 16 13. Interamphideal area smooth, without ornamentation.................................................................... 14 – Interamphideal area punctated, areolated or crenated................................................................... 15 14. Cephalic setae 17 µm long..................................................... D. botulus (Wieser, 1959) comb. nov. – Cephalic setae 5 µm long...................................................................... D. sundensis (Jensen, 1978) 15. Cephalic setae 12–18 µm long; amphid 21–26 µm long............................................................................ D. paramastigia Holovachov, Tandingan De Ley, Mundo-Ocampo, Gingold & De Ley, 2009 – Cephalic setae 6.5–8.5 µm long; amphid 40–45 µm long................... D. mastigia Tchesunov, 1990 16. Cephalic setae longer than 10 µm............... D. lucanicus (Boucher & Helléouët, 1977) comb. nov. – Cephalic setae shorter than 10 µm................................................................................................. 17 17. Cephalic setae 3.5–7 µm long................................................ D. asetosus (Juario, 1974) comb. nov. – Cephalic setae less than 1–2 µm long............................................................................................ 18 18. Spicules with dorsally bent manubrium; amphid 17–28 µm long......................................................................................................................................................................... D. nudus (Gerlach, 1956) – Spicules with straight manubrium; amphid 26–33 µm long............................................................................................................................................................................... D. anatolii (Voronov, 1982) : Published as part of Holovachov, Oleksandr & Boström, Sven, 2017, Three new and five known species of Diplopeltoides Gerlach, 1962 (Nematoda, Diplopeltoididae) from Sweden, and a revision of the genus, pp. 1-35 in European Journal of Taxonomy 369 on pages 29-30, DOI: 10.5852/ejt.2017.369, http://zenodo.org/record/3838436 : {"references": ["Vincx M. & Gourbault N. 1992. Six new species of the genus Diplopeltula (Nematoda: Diplopeltidae) with remarks on the heterogeneity of the taxon. Hydrobiologia 230: 165 - 178. https: // doi. org / 10.1007 / BF 00036563", "Gerlach S. A. 1950. Die Diplopeltiden, eine Gruppe freilebender Nematoden. Kieler Meeresforschungen 7: 138 - 156.", "Jensen P. 1991. Nine new and less known nematode species from the deep-sea benthos of the Norwegian Sea. Hydrobiologia 222: 57 - 76. https: // doi. org / 10.1007 / BF 00017500", "Vitiello P. 1972. Sur quelques especes de Diplopeltula (Nematoda, Araeolaimida). Vie et Milieu 21: 535 - 544.", "Holovachov O., Tandingan De Ley I., Mundo-Ocampo M., Gingold R. & De Ley P. 2009. 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. Russian Journal of Nematology 17: 43 - 57.", "Gerlach S. A. 1956. Diagnosen neuer Nematoden aus der Kieler Bucht. Kieler Meeresforschungen 12: 85 - 109.", "Jensen P. 1978. Four nematoda Araeolaimida from Oresund, Denmark, with remarks on the oesophageal structure in Aegialoalaimus. Cahiers de Biologie marine 19: 221 - 231.", "Tchesunov A. V. 1990. A critical analysis of the family Aegialoalaimidae (Nematoda, Chromadoria), trends in evolutionary development of marine nematode pharynx and a proposal of two new families. Zoologicheskii Zhurnal 69: 5 - 18."]}